CMMC-CCP Questions and Answers

Understanding the "Examine" Assessment Method in CMMC 2.0

CMMC 2.0 usesthree assessment methodsto evaluate security compliance:

Examine– Reviewing, inspecting, observing, studying, or analyzing assessment objects (e.g., policies, system documentation).

Interview– Speaking with personnel to verify knowledge and responsibilities.

Test– Performing technical validation to check system configurations.

Relevant CMMC 2.0 Reference:

TheCMMC Assessment Process (CAP)definesExamineas the method used toreview or analyze assessment objects, such as policies, procedures, configurations, and logs.

Why is the Correct Answer "Examine" (C)?

A. Test → Incorrect

"Test" involvesexecutinga function to validate its security (e.g., verifying access controls through a live system test).

B. Assess → Incorrect

"Assess" is a broad term; CMMC explicitly defines "Examine" as the method for reviewing documentation.

C. Examine → Correct

"Examine" is the official term forreviewing policies, procedures, configurations, or logs.

D. Interview → Incorrect

"Interview" involvesverbal discussions with personnel, not document analysis.

CMMC 2.0 References Supporting this Answer:

CMMC Assessment Process (CAP) Document

Defines "Examine" asanalyzing assessment objects (e.g., policies, procedures, logs, documentation).

NIST SP 800-171A

Specifies "Examine" as a method toreview security controls and configurations.

The requirement to exercise due care in protecting information gathered during an assessment aligns with the principle ofConfidentialityunder theCMMC Code of Professional Conduct (CoPC). This ensures that sensitive assessment data, findings, and any Controlled Unclassified Information (CUI) remain protected even after the engagement concludes.

Step-by-Step Breakdown:

Definition of Confidentiality in CMMC Context:

Confidentiality refers to protecting sensitive information from unauthorized disclosure.

In the context of a CMMC assessment, it includes safeguarding assessment artifacts, findings, and other sensitive data collected during the evaluation process.

CMMC Code of Professional Conduct (CoPC) References:

TheCMMC Code of Professional Conductstates that assessors and organizations must handle all collected information with discretion andensure its protection post-engagement.

Clause on"Maintaining Confidentiality"specifies that assessors must:

Not disclose sensitive information to unauthorized parties.

Secure data in storage and transmission.

Retain and dispose of data securely in accordance with federal regulations.

Alignment with NIST 800-171 & CMMC Practices:

CMMC Level 2 incorporates NIST SP 800-171 controls, which include:

Requirement 3.1.3:“Control CUI at rest and in transit” to ensure unauthorized individuals do not gain access.

Requirement 3.1.4:“Separate the duties of individuals to reduce risk” ensures that assessment findings are only shared with authorized personnel.

These requirements align with the duty toexercise due carein protecting assessment-related information.

Why the Other Options Are Incorrect:

(A) Availability:This refers to ensuring data is accessible when needed but does not directly relate to protecting gathered information post-assessment.

(C) Information Integrity:This focuses on preventing unauthorized modifications rather than restricting disclosure.

(D) Respect for Intellectual Property:While related to ethical handling of proprietary data, it does not directly cover post-engagement confidentiality requirements.

Final Validation from CMMC Documentation:

TheCMMC Code of Professional ConductandNIST SP 800-171control requirements confirm thatConfidentialityis the correct answer, as it directly pertains to protecting information post-assessment.

Thus, the correct answer isB. Confidentiality.

UnderDFARS 252.204-7012 (Safeguarding Covered Defense Information and Cyber Incident Reporting), if acontractoruses acloud-based serviceto store, process, or transmitControlled Unclassified Information (CUI), the cloud providermustmeet the security requirements ofFedRAMP Moderate or equivalent.

Key Requirements from DFARS 252.204-7012 (c)(1):

CUI stored in the cloud must be protected according to FedRAMP Moderate (or higher) requirements.

The cloud provider must meetFedRAMP Moderate baseline security controls, which align withNIST SP 800-53moderate impact level requirements.

The cloud provider must also ensure compliance withincident reportingandcyber incident response requirementsin DFARS 252.204-7012.

Why is the Correct Answer "FedRAMP Moderate" (B)?

A. FedRAMP Low → Incorrect

FedRAMP Lowis intended for systems withlow confidentiality, integrity, and availability risks, making itinadequate for CUI protection.

B. FedRAMP Moderate → Correct

FedRAMP Moderate is the minimum required level for CUIunder DFARS 252.204-7012.

It provides a security baseline for protectingsensitive but unclassified government data.

C. FedRAMP High → Incorrect

FedRAMP Highapplies to systems handlinghighly sensitive information (e.g., classified or national security data), which is not necessarily required for CUI.

D. FedRAMP Secure → Incorrect

There isno official FedRAMP Secure categoryin FedRAMP guidelines.

CMMC 2.0 References Supporting this Answer:

DFARS 252.204-7012(c)(1)

Specifies thatcontractors using external cloud services for CUI must meet FedRAMP Moderate or equivalent.

CMMC 2.0 Level 2 Requirements

CUI must be protected using NIST SP 800-171 security requirements, whichalign with FedRAMP Moderate controls.

FedRAMP Security Baselines

FedRAMP Moderateis designed for systems that handlesensitive government data, including CUI.

Under the CMMC Assessment Process (CAP) and CMMC 2.0 guidelines, assessors must gather objective evidence to validate that an organization meets the required security practices and processes. This evidence collection is performed through three primary assessment methods:

Examination – Reviewing documents, records, system configurations, and other artifacts.

Interviews – Speaking with personnel to verify processes, responsibilities, and understanding of security controls.

Testing – Observing system behavior, performing technical validation, and executing controls in real-time to verify effectiveness.

Why Option D is Correct

The CMMC Assessment Process (CAP) states that an assessor must use a combination of evidence-gathering methods (examinations, interviews, and tests) to determine compliance.

CMMC 2.0 Level 2 (Aligned with NIST SP 800-171) requires assessors to verify not only that policies and procedures exist but also that they are implemented and effective.

Solely relying on one method (like interviews in Option A) is insufficient.

Testing all practices or objectives (Option B) is unnecessary, as assessors follow scoping guidance to determine which objectives need deeper examination.

Testing only "certain" objectives (Option C) does not fully align with the requirement of gathering sufficient evidence from multiple methods.

CMMC 2.0 and Official Documentation References

CMMC Assessment Process (CAP) Guide, Section 3.5 – Assessment Methods explicitly defines the use of examinations, interviews, and tests as the foundation of an effective assessment.

CMMC 2.0 Level 2 Practices and NIST SP 800-171 require assessors to validate the presence, implementation, and effectiveness of security controls.

CMMC Appendix E: Assessment Procedures states that an assessor should use multiple sources of evidence to determine compliance.

Final Verification

To ensure compliance with CMMC 2.0 guidelines and official documentation, an assessor must use examinations, interviews, and tests to gather evidence effectively, making Option D the correct answer.

Understanding SC.L2-3.13.14 – Control and Monitor the Use of VoIP Technologies

TheCMMC 2.0 Level 2requirementSC.L2-3.13.14comes fromNIST SP 800-171, Security Requirement 3.13.14, which mandates that organizations mustcontrol and monitor the use of VoIP (Voice over Internet Protocol) technologiesif used within their system boundary.

If a systemdoes not use VoIP technology, then this control isNot Applicable (N/A)because there is nothing to assess.

Why Option D is Correct

When a requirement is marked as Not Applicable (N/A), it means the OSC does not use the technology or process covered by that controlwithin its assessment boundary.

No assessment procedures are neededsince there is no VoIP system to evaluate.

Option A (Existing telephone system in scope)is incorrect becausetraditional (non-VoIP) telephone systems are not covered by SC.L2-3.13.14—only VoIP is within scope.

Option B (Error, contact the Lead Assessor)is incorrect because markingSC.L2-3.13.14 as N/A is valid if VoIP is not used. This is not an error.

Option C (VoIP in scope but using FIPS-validated encryption, so it doesn’t need to be assessed)is incorrect becauseeven if VoIP uses FIPS-validated encryption, the control would still need to be assessed to ensure monitoring and usage control are in place.

Official CMMC Documentation References

CMMC 2.0 Level 2 Assessment Guide – SC.L2-3.13.14

NIST SP 800-171, Security Requirement 3.13.14

CMMC Scoping Guidance – Determining Not Applicable (N/A) Practices

Final Verification

IfVoIP is not used within the OSC’s system boundary, the control does not require assessment, making Option D the correct answer.

Step 1: Understand the “CA” Domain – Security Assessment

TheCA (Security Assessment)domain includes practices related to:

Planning security assessments,

Performing periodic reviews,

Managing plans of action and milestones (POA&Ms).

These practices derive fromNIST SP 800-171, specifically:

CA.2.157– Develop, document, and periodically update security plans,

CA.2.158– Periodically assess security controls,

CA.2.159– Develop and implement POA&Ms.

✅Step 2: Review CMMC Levels

Level 1 (Foundational):

Implements only the17 practicesfromFAR 52.204-21

Doesnot include the CA domain

Level 2 (Advanced):

Implements110 practicesfromNIST SP 800-171, including CA.2.157–159

First levelwhereSecurity Assessment (CA)practices are required

Level 3:

Not yet finalized but intended to include selected controls fromNIST SP 800-172

❌Why the Other Options Are Incorrect

A. Level 1

✘No CA domain practices are present at Level 1.

C. Level 3 / D. Level 4

✘These levels build on CA practices but do not represent thestarting point.

TheSecurity Assessment (CA)domain practices begin atCMMC Level 2, as part of the implementation ofNIST SP 800-171.

When a company usesthird-party IT providersto manage their infrastructure, these organizations are classified asExternal Service Providers (ESPs)underCMMC scoping guidelines.

Step-by-Step Breakdown:

✅1. What is an ESP?

External Service Providers (ESPs)arethird-party organizationsthat:

ProvideIT services, cloud hosting, and managed security solutions.

Process, store, or transmit FCI or CUIon behalf of a contractor.

Mustmeet the same security requirementsas the OSC if they handle FCI or CUI.

If a company relies ona hosting provider to manage IT infrastructure, that provider is anESPunderCMMC scoping guidelines.

✅2. Why the Other Answer Choices Are Incorrect:

(B) People❌

Incorrect:ESPs areorganizations, not individual people.

(C) Facilities❌

Incorrect:Facilities refer tophysical locationslike office buildings or data centers, not third-partyservice providers.

(D) Technology❌

Incorrect:While ESPs provide technology services, the correct term forthird-party IT providersunder CMMC isESPs, not just "Technology."

Final Validation from CMMC Documentation:

TheCMMC Level 1 Scoping GuidedefinesExternal Service Providers (ESPs)asthird-party organizations that manage IT infrastructure and security services.

Thus, the correct answer is:

✅A. ESPs (External Service Providers).

CMMC Level 2 Readiness and Certification Requirements

CMMCLevel 2is required forOrganizations Seeking Certification (OSCs) that handle Controlled Unclassified Information (CUI)and aligns withNIST SP 800-171's 110 security controls.

Key Readiness Indicators for a Level 2 Assessment:

The OSC must have implemented all 110 security practices from NIST SP 800-171.

Documented and validated cybersecurity policies and procedures must exist.

The OSC must be prepared to provide objective evidence (artifacts) proving compliance.

Why the OSC in the Question is Not Ready:

They have not won a DoD contract yet→ This means they do not yet have a contractually definedCUI environment, which is the foundation for defining their security scope.

They have only provided FCI-related artifacts(e.g., visitor logs, workstation policies, FedRAMP configurations).

Lack of full documentation of CMMC Level 2 controls→ The assessment requiresevidence for all 110 security practices(e.g., system security plans, incident response records, security awareness training documentation).

Clarification of Incorrect Options:

A. "Ready because there is no need to certify this company until after they win a DoD contract."

Incorrect→ Some organizationsseek certification proactivelybefore winning contracts. However, readiness depends on implementingall 110 required controls, not contract status alone.

B. "Not ready because the OSC is not on contract because they do not know the scope of FCI protection required by the contract."

Incorrect→ CMMC Level 2focuses on CUI, not just FCI. While FCI protection is important, the assessment’s focus is onCUI security requirements, which arenot fully addressed by the provided artifacts.

D. "Ready because all DoD contractors are required to achieve CMMC Level 2; therefore, they are being proactive in seeking certification."

Incorrect→ While it is commendable that the OSC is being proactive,readiness is based on full compliance with NIST SP 800-171, not just intent.

The Lead Assessor is responsible for protecting and maintaining all assessment records, notes, and information gathered during the assessment process. This includes working papers and supplemental documentation that may be needed for auditability or dispute resolution.

Supporting Extracts from Official Content:

CAP v2.0, Post-Assessment Responsibilities (§3.17): “The Lead Assessor must ensure that all assessment artifacts, notes, and information are archived or disposed of in accordance with C3PAO policy.”

Why Option A is Correct:

The CAP specifies that notes and information from the assessment must be preserved or disposed of according to policy.

Options B, C, and D list items not required in the CAP. The “letter” and “quality control report” are not part of the Lead Assessor’s required maintained materials.

References (Official CMMC v2.0 Content):

CMMC Assessment Process (CAP) v2.0, Phase 3 Post-Assessment (§3.17).

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Understanding the Assessment Environment Requirement

During aCMMC Level 2 assessment, assessors requireobjective evidencethat security controls are implementedin the actual operating environmentwhereControlled Unclassified Information (CUI)is handled.

This means thattests or demonstrations must be conducted in the production environment, where the organization’s real systems and security controls are in use.

Why Option B (Production) is Correct

Assessment teams need to validate security controls in the actual environment where they are applied, ensuring that security measures are in effect in thereal-world operating conditions.

Option A (Client)is incorrect because "Client" is not a defined assessment environment.

Option C (Development)is incorrect because testing in a development environmentdoes not accurately represent the production security posture.

Option D (Demonstration)is incorrect becausedemonstrations in a separate test environment do not provide valid evidence for CMMC assessments—actual security implementations must be verified in production.

Official CMMC Documentation References

CMMC Assessment Process (CAP) Guide – Section 3.5 (Assessment Methods)

NIST SP 800-171 Assessment Procedures(Verification must occur in the actual system where CUI resides.)

Final Verification

SinceCMMC assessments require security controls to be validated in the actual production environment, the correct answer isOption B: Production.

Understanding SI.L1-3.14.2: Provide Protection from Malicious Code

The CMMC Level 1 practiceSI.L1-3.14.2is based onNIST SP 800-171 Requirement 3.14.2, which requires organizations to:

Implement malicious code protection(e.g., antivirus, endpoint security software).

Ensure coverage across all appropriate locations(e.g., workstations, servers, network entry points).

Keep protection mechanisms updated(e.g., regular signature updates, policy enforcement).

Assessment Criteria for a "MET" Rating:

To determine whether the practice isMET, the Lead Assessor must confirm that:

✔Antivirus or endpoint protection software is installedon all workstations and servers.

✔The solution is centrally managed, ensuring consistent policy enforcement.

✔Signature updates are current, meaning systems are protected against new threats.

✔Logs or reports demonstrate active monitoring and updates.

Why is the Correct Answer "A. It is sufficient, and the audit finding can be rated as MET"?

The provided evidenceconfirms all necessary requirementsfor SI.L1-3.14.2:

✔All workstations and servers have antivirus installed→Meets installation requirement.

✔A centralized management console is in place→Ensures consistent enforcement.

✔Records show antivirus signatures are up to date→Confirms system protection is current.

Because the evidencemeets the requirement, the practice should berated as MET.

Why Are the Other Answers Incorrect?

B. It is insufficient, and the audit finding can be rated NOT MET → Incorrect

The evidence providedmeets all necessary requirements, so the practiceshould not be rated as NOT MET.

C. It is sufficient, and the Lead Assessor should seek more evidence → Incorrect

Ifadequate evidence already exists,additional evidence is unnecessary.

D. It is insufficient, and the Lead Assessor should seek more evidence → Incorrect

The evidence providedmeets the control requirements, making itsufficient.

CMMC 2.0 References Supporting This Answer:

CMMC Assessment Process (CAP) Document

Specifies that a practice can be marked asMET if sufficient evidence is provided.

NIST SP 800-171 (Requirement 3.14.2)

Defines the standard formalicious code protection, which ismet by antivirus with active updates.

CMMC 2.0 Level 1 (Foundational) Requirements

Clarifies that basic cybersecurity measures likeantivirus installation and updatesmeet compliance forSI.L1-3.14.2.

Final Answer:

✔A. It is sufficient, and the audit finding can be rated as MET.

Planning and preparing for aCMMC assessmentinvolves collaboration between theassessorand theOrganization Seeking Certification (OSC)to determine scope, required evidence, and logistics. This planning process isdynamicand must adapt as new information emerges.

Why the Correct Answer is "D"?

Assessment Scope and Requirements May Change

As assessors gather evidence and analyze the environment,new details about assets, networks, and security controlsmay require adjustments to the assessment plan.

TheCMMC Assessment Process (CAP) Guideemphasizes that assessmentrequirements and scope should be continuously reviewed and updatedto reflect real-time findings.

Assessors Follow an Adaptive Approach

DuringCMMC assessments, organizations may discover additionalFCI or CUI assets, which can change the required security practices to be evaluated.

Assessors shouldrevise the assessment approach accordinglyrather than strictly following an initial, unchangeable plan.

Why Not the Other Options?

A. Scoping an assessment is easy and worry-free→Incorrect

Scoping is acritical and complex processthat requires careful evaluation of the OSC’s information systems and assets.

CMMC Scoping Guidestates thatidentifying in-scope assets is crucial and requires significant effort.

B. The initial plan cannot be changed once agreed upon→Incorrect

Theinitial assessment plan is a starting point, butit must be flexiblebased on real-time findings.

CMMC CAP Guideemphasizescontinuous refinementduring the assessment process.

C. There is a determined amount of time that the OSC's point of contact has to submit evidence and rough order-of-magnitude→Incorrect

While there aretimelines, the key focus is ensuring thatall necessary evidence is gathered accuratelyrather than rushing to meet a strict deadline.

Relevant CMMC 2.0 References:

CMMC Assessment Process (CAP) Guide– States that assessment requirements and planning should be updated as additional information is gathered.

CMMC Scoping Guide (Nov 2021)– Explains that assessors must continually refinein-scope assets and requirementsthroughout the process.

Final Justification:

Assessment planning is a dynamic process.Assessors must continuously review and update the requirements and planas new information emerges, makingDthe correct answer.

Understanding the Official CUI Registry

TheControlled Unclassified Information (CUI) Registryis theauthoritative sourcefor all federal agencies'CUI categories and indices. It is maintained by theNational Archives and Records Administration (NARA)and provides:

✅Acomprehensive listof CUI categories and subcategories.

✅Details onwho can handle, store, and share CUI.

✅Guidance onCUI marking and safeguarding requirements.

Why "Official CUI Registry" is Correct?

TheOfficial CUI Registryis theonly federal resourcethat listsall CUI categories and agencies that use them.

32 CFR Section 2002(Option A) definesCUI policiesbut doesnotprovide a full listing of CUI categories.

Executive Order 13556(Option C) established theCUI Programbut doesnotmaintain an active list of categories.

The "Official CMMC Registry" (Option D) does not exist—CMMC is a security framework, not a CUI classification system.

Breakdown of Answer Choices

Option

Description

Correct?

A. 32 CFR Section 2002

❌Incorrect–Defines CUI program rules butdoes not listcategories.

B. Official CUI Registry

✅Correct – The registry contains the full list of CUI categories.

C. Executive Order 13556

❌Incorrect–Established the CUI program butdoes not maintain a category list.

D. Official CMMC Registry

❌Incorrect–No such registry exists; CMMC is a cybersecurity framework, not a CUI classification system.

Official References from CMMC 2.0 and Federal Documentation

National Archives (NARA) CUI Registry– The authoritative source forall federal agency CUI categories.

32 CFR 2002– Provides CUIpolicy guidancebut refers agencies to theOfficial CUI Registryfor classification.

Final Verification and Conclusion

The correct answer isB. Official CUI Registry, as it is theonly official source listing all federal agencies' CUI indices and categories.

Understanding the CMMC Level 2 Assessment Process

When anOrganization Seeking Certification (OSC)engages aCertified Third-Party Assessment Organization (C3PAO)to conduct aCMMC Level 2 Assessment, anAssessment Planis developed to outline the scope, methodology, and logistics of the assessment.

Who Signs Off on the Assessment Plan?

According to theCMMC Assessment Process (CAP) Guide, theAssessment Plan must be formally agreed upon and signed off by:

Lead Assessor– The individual responsible for overseeing the execution of the assessment.

C3PAO (Certified Third-Party Assessment Organization)– The entity conducting the assessment.

Why "C. Lead Assessor and C3PAO" is Correct?

TheLead Assessorensures that theAssessment Plan aligns with CMMC-AB and DoD requirements, including methodology, objectives, and evidence collection.

TheC3PAOprovides organizational approval, confirming that the assessment is conducted according toCMMC-AB rules and contractual agreements.

Why Other Answers Are Incorrect?

A. OSC and Sponsor (Incorrect)

TheOSC (Organization Seeking Certification)is involved in planning but does not sign off on the plan.

Asponsoris not part of the sign-off process in CMMC assessments.

B. OSC and CMMC-AB (Incorrect)

TheOSCdoes not formally approve theAssessment Plan—this responsibility belongs to the assessment team.

TheCMMC-ABdoes not sign off on individualAssessment Plans.

D. C3PAO and Assessment Official (Incorrect)

"Assessment Official" isnot a defined rolein the CMMC assessment process.

TheC3PAOis involved, but it must be theLead Assessorwho signs off, not an unspecified official.

Conclusion

The correct answer isC. Lead Assessor and C3PAO.

TheLead Assessorensures assessment integrity, while theC3PAOprovides official authorization.

Understanding Specialized Assets in a CMMC Self-Assessment

DuringCMMC Level 1 Self-Assessments, organizations must classify theirassetsin theSystem Security Plan (SSP).

Specialized Asset Type: Operational Technology (OT)

Operational Technology (OT)includesmachine controllers, industrial control systems (ICS), and assembly machines.

Thesesystems control physical processesin manufacturing, energy, and industrial environments.

OT assets are distinct from traditional IT systemsbecause they haveunique security considerations(e.g., real-time control, legacy system constraints).

Why is the Correct Answer "D. Operational Technology"?

A. IoT (Internet of Things) → Incorrect

IoT devicesinclude smart home systems, connected sensors, and networked appliances, butmachine controllers and assembly machines fall under OT, not IoT.

B. Restricted IS → Incorrect

Restricted Information Systems (IS) refer to classified or highly controlled systems, whichdoes not apply to standard industrial machines.

C. Test Equipment → Incorrect

Test equipment includes diagnostic tools or measurement devicesused forquality assurance, not industrial machine controllers.

D. Operational Technology → Correct

Machine controllers and assembly machinesare part ofindustrial automation and control systems, which are classified asOperational Technology (OT).

CMMC 2.0 References Supporting This Answer:

CMMC Scoping Guidance for Level 1 & Level 2 Assessments

DefinesOperational Technology (OT) as a category of Specialized Assetsthat requirespecific security considerations.

NIST SP 800-82 (Guide to Industrial Control Systems Security)

Identifiesmachine controllers and assembly machinesas part ofOperational Technology (OT).

CMMC 2.0 Asset Classification Guidelines

Specifies thatOT systems should be documented separately in an organization's SSP.

Understanding the Definition of a "Practice" in CMMC 2.0

In CMMC 2.0, the term"practice"refers to specific cybersecurity activities that organizations must implement to achieve compliance with defined security objectives.

Step-by-Step Breakdown:

Definition from CMMC Documentation:

According to theCMMC Model Overview, apracticeis defined as:

"An activity or activities performed to meet defined CMMC objectives."

This means that practices are theactions and implementations required to protect Controlled Unclassified Information (CUI) and Federal Contract Information (FCI).

How Practices Fit into CMMC 2.0:

CMMC 2.0 Level 1 consists of17 practices, which align withFAR 52.204-21 (Basic Safeguarding of Covered Contractor Information Systems).

CMMC 2.0 Level 2 consists of110 practices, aligned directly withNIST SP 800-171 Rev. 2.

Each practice has anobjectivethat must be met to demonstrate compliance.

Official CMMC 2.0 References:

TheCMMC 2.0 Model Documentationdefines practices as "the fundamental cybersecurity activities necessary to achieve security objectives."

TheCMMC Assessment Process (CAP) Guideoutlines how assessors verify the implementation of these practices during an assessment.

TheNIST SP 800-171A Guideprovidesassessment objectivesfor each practice to ensure they are implemented effectively.

Comparison with Other Answer Choices:

A. A business transaction→ Incorrect. CMMC practices focus on cybersecurity activities, not financial or operational transactions.

B. A condition arrived at by experience or exercise→ Incorrect. While practices evolve over time, they are defined activities, not just experience-based conditions.

C. A series of changes taking place in a defined manner→ Incorrect. A practice is a set of security actions, not just a process of change.

Conclusion:

ACMMC practicerefers to specificcybersecurity activities performed to meet defined CMMC objectives. This makesOption Dthe correct answer.

nderstanding Objectivity in CMMC-AB Activities

Objectivityin CMMC-AB activities refers to therequirement that assessors and C3PAOs remain impartial, unbiased, and free from conflicts of interestwhile conducting assessments and providing CMMC-related services.

Key Aspects of Objectivity in CMMC Assessments:

✔No conflicts of interest—Assessors must not assess organizations they havefinancial, professional, or personal ties to.

✔Unbiased reporting—Findings must bebased solely on evidence, with no external influence.

✔Avoiding even the appearance of a conflict—If there isany perception of bias, it must be addressed.

Why is the Correct Answer "C. Avoiding the appearance of or actual, conflicts of interest"?

A. Ensuring full disclosure → Incorrect

Full disclosure is importantbut doesnot define objectivity. Objectivity meansremaining neutral and free from conflicts.

B. Reporting results of CMMC services completely → Incorrect

Whileaccurate reporting is required,objectivity focuses on impartiality, not just completeness.

C. Avoiding the appearance of or actual, conflicts of interest → Correct

Objectivity in CMMC-AB activities is primarily about preventing bias and ensuring fair assessments.

Avoiding conflicts of interest ensures thatassessments are credible and trustworthy.

D. Demonstrating integrity in the use of materials as described in policy → Incorrect

Integrity is important, butobjectivity is specifically about avoiding bias and conflicts of interest.

CMMC 2.0 References Supporting This Answer:

CMMC-AB Code of Professional Conduct

Requiresassessors and C3PAOs to avoid conflicts of interestand maintainimpartiality.

CMMC Assessment Process (CAP) Document

Emphasizes that assessments must befree from external influence and conflicts of interest.

ISO/IEC 17020 Requirements for Inspection Bodies

Definesobjectivity as avoiding conflicts of interest in the assessment process.

Understanding IA.L2-3.5.3: Multifactor Authentication (MFA) Requirement

TheIA.L2-3.5.3practice, derived fromNIST SP 800-171 (Requirement 3.5.3), requires thatmultifactor authentication (MFA) be implemented for both privileged and standard userswhen accessing:

✔Organizational endpoints(e.g., laptops, desktops, mobile devices).

✔Network resources(e.g., VPNs, internal systems).

✔Cloud services containing Controlled Unclassified Information (CUI).

Key Requirement for a "MET" Rating

For IA.L2-3.5.3 to beMet, the organization must:

Require MFA for all privileged users(e.g., system administrators).

Require MFA for standard users accessing endpoints and network resources.

Implement MFA across all relevant systems.

Sincestandard users do not require MFA in the OSC’s current implementation, the practiceis not fully implementedand must be ratedNOT MET.

Why is the Correct Answer "D" (Practice is NOT MET since the objective was not implemented)?

A. The process is running correctly → Incorrect

MFA isonly applied to privileged users, but it isalso required for standard users. The process isnot fully implemented.

B. It is out of scope as this is a new acquisition → Incorrect

New acquisitionsmust still meet MFA requirementsif they handle CUI or network access.

C. The new acquisition is considered Specialized Assets → Incorrect

Specialized assets (e.g., IoT, legacy systems) may have alternative security controls, but standard users and endpointsmust still comply with MFA.

D. Practice is NOT MET since the objective was not implemented → Correct

MFA must be enabled for both privileged and standard usersaccessing endpoints and network resources. Since standard users are excluded, the practice isNOT MET.

CMMC 2.0 References Supporting This Answer:

CMMC 2.0 Level 2 (Advanced) Requirements

Specifies thatMFA must be applied to all users accessing CUI and network resources.

NIST SP 800-171 (Requirement 3.5.3 – MFA Implementation)

Requires MFA forall user types, including privileged and standard users.

CMMC Assessment Process (CAP) Document

States that a practicemust be fully implemented to be considered MET. Partial implementation meansNOT MET.

Step 1: Understand the Definitions of Evidence Evaluation Criteria

TheCMMC Assessment Process (CAP)introduces two key criteria for evaluating evidence:

Adequacy– Does the evidencealign with the practice?

Sufficiency– Is the evidencecomprehensive enoughin terms ofcoverage across systems, users, and scope?

CAP v1.0 – Section 3.5.4:

“Evidence must be evaluated for bothadequacy(is it the right evidence?) andsufficiency(is there enough of it across all in-scope assets and areas?) to score a practice as MET.”

✅Step 2: Applying to the Scenario

In the question, the Lead Assessor is asking the team toverify that evidence is sufficient across:

Domains

Practices

Host Units

Supporting Organizations

Enclaves

➡️This is adirect reference to sufficiency, which evaluates whether thebreadth and depthof evidence is enough to make an informed judgment that the control is truly implemented across theentire assessed environment.

❌Why the Other Options Are Incorrect

A. Adequacy

✘Adequacy refers to therelevanceof the evidence to the specific practice — not itscoverageacross scope.

B. Capability

✘Not a term used in evidence validation within CMMC CAP documentation.

D. Objectivity

✘While objectivity is important, it refers to theunbiased nature of assessment activities, not to theextent of evidence coverage.

When an assessor evaluates whether the evidence is broad enough across all necessary systems, units, and enclaves to score a practice as MET, they are evaluatingsufficiency— one of the two core criteria for evidence validity in a CMMC assessment.

Step 1: Define Roles – CCP and CCA

CCP (Certified CMMC Professional):

Entry-level certification in the CMMC ecosystem.

Supports assessment activities under the supervision of a CCA.

May assist in consulting roles outside of formal assessments.

CCA (Certified CMMC Assessor):

Certified tolead assessmentsunder the CMMC model.

Requiredfor conductingLevel 2 formal assessments.

Can be part of a C3PAO assessment team or lead it.

Source: CMMC Assessment Process (CAP) v1.0, Section 2.3 – Assessment Team Composition

“Level 2 assessments must be led by a Certified CMMC Assessor (CCA), who may be supported by one or more CCPs.”

✅Step 2: Citizenship Requirements

CAP v1.0 – Appendix B: Team Composition and Clearance Requirements

“All team members performing Level 2 assessments must be U.S. citizens when handling CUI, regardless of role.”

But forsupporting team members who do not handle CUIor inFCI-only scoping, there is no automatic exclusion based on citizenship.

So:

TheCCA leadsthe team.

CCPs can be team membersregardless of citizenship,unless restricted by contract or CUI handling needs.

❌Why the Other Options Are Incorrect

A. The CCP leads the Level 2 Assessment Team…

✘Incorrect. CCPscannot leadLevel 2 assessments.

B. The CCA leads… includes 3 CCP with US Citizenship.

✘Incorrect. Citizenship is requiredonly when handling CUI, not a universal requirement.

D. The CCP leads…

✘Again, CCPs donot have the authority to leadformal CMMC assessments.

Only aCertified CMMC Assessor (CCA)may lead aLevel 2 Assessment Team, and theymay include CCPs, evennon-U.S. citizens, if citizenship is not a requirement based on contractual or data sensitivity scope.

Contractors that handle Covered Defense Information (CDI) are required to report cyber incidents to the Department of Defense within 72 hours of discovery.

Supporting Extracts from Official Content:

DFARS 252.204-7012(c)(1): “When the Contractor discovers a cyber incident that affects a covered contractor information system or the covered defense information residing therein, the Contractor shall conduct a review… and rapidly report the cyber incident to DoD within 72 hours of discovery.”

Why Option C is Correct:

The regulation explicitly specifies 72 hours.

Options A (24 hrs), B (48 hrs), and D (96 hrs) do not align with DFARS requirements.

References (Official CMMC v2.0 Content and Source Documents):

DFARS 252.204-7012, Safeguarding Covered Defense Information and Cyber Incident Reporting.

CMMC v2.0 Governance – Source Documents list includes DFARS 252.204-7012.

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According to the CMMC Assessment Process (CAP) and the CMMC Level 2 Assessment Guide, an assessment finding is built upon evidence collected through three primary methods: Examine, Interview, and Test. The term "affirmation" in this context refers to the verbal or written statements provided by the Organization Seeking Certification (OSC) personnel to confirm that a practice is implemented as described.

Broad Definition of Evidence: The CAP allows for a wide variety of artifacts to be used as evidence. "Affirmations" are typically captured during the Interview process or found within Examine objects.

Validity of Formats:

Interviews: Direct verbal affirmations from subject matter experts (SMEs).

Emails and Messaging (Chat/Slack/Teams): These are considered valid "Examine" objects (records/artifacts) that serve as written affirmations or evidence of an activity (e.g., an email chain approving a firewall change or a message confirming a system update).

Presentations and Demonstrations: These fall under "Examine" (the presentation slides) and "Test/Examine" (the demonstration of a mechanism).

Why Option C is correct: The CMMC framework does not disqualify digital communications like emails or messaging as evidence. In fact, these are often the primary artifacts used to prove that a process (like an approval workflow or notification) is occurring in practice. As long as the assessor can verify the authenticity and integrity of these communications, they are appropriate for collecting affirmations.

Why Option D is less accurate: While screenshots are indeed used as evidence, the core question asks if thespecificlist (interviews, demonstrations, emails, messaging, presentations) is appropriate. Option C directly validates the list provided in the prompt without introducing extraneous elements like screenshots, which—while valid—are not the focus of the "appropriate" determination for the items listed.

Reference Documents:

CMMC Assessment Process (CAP) v1.0: Section 3.4 (Collect and Verify Evidence), which discusses the types of artifacts and "human evidence" (interviews) that support findings.

CMMC Level 2 Assessment Guide: "Assessment Methods" section, clarifying that evidence can include any records (electronic or physical) that demonstrate the implementation of a practice.

NIST SP 800-171A: The underlying standard for assessment procedures, which encourages the use of various evidence types to satisfy assessment objectives.

Understanding Scoping in CMMC Level 1 Self-Assessments

Federal Contract Information (FCI)is any informationnot intended for public releasethat is provided or generated under aU.S. Government contracttodevelop or deliver a product or service.

Enhanced Security Personnel (ESP)refers to employees, contractors, or third parties whohave access to FCIwithin anOrganization Seeking Certification (OSC).

UnderCMMC 2.0 Scoping Guidance, anypersonnel, system, or asset with access to FCI is considered in scopefor a CMMC Level 1 assessment.

Why Option A (In scope) is Correct

Since theESP employee has access to FCI, theymustbe included in the assessment scope.

Option B (Out of scope)is incorrect because anyone with access to FCI is automatically considered part of theCMMC Level 1 boundary.

Option C (OSC point of contact)is incorrect because thepoint of contactis typically an administrative or compliance representative, not necessarily someone with FCI access.

Option D (Assessment Team Member)is incorrect because anESP employee is not part of the assessment team but rather a subject of the assessment.

Official CMMC Documentation References

CMMC Level 1 Scoping Guide, Section 2 – Defining Scope for FCI

CMMC Assessment Process (CAP) Guide – Roles and Responsibilities

Federal Acquisition Regulation (FAR) 52.204-21(Basic Safeguarding of FCI)

Final Verification

Since theESP employee has access to FCI, they are consideredin scopefor the CMMC Level 1 self-assessment, makingOption A the correct answer.

CMMC Level 2 requires full implementation of the 110 security requirements specified in NIST SP 800-171 Rev. 2, Protecting Controlled Unclassified Information in Nonfederal Systems and Organizations. These practices form the foundation for safeguarding CUI across defense contractor systems.

NIST SP 800-53 is a broader catalog of security controls for federal systems, not specific to CUI in the defense contractor environment.

48 CFR 52.204-21 establishes basic safeguarding requirements for Federal Contract Information (FCI) and corresponds to CMMC Level 1.

DFARS 252.204-7012 defines safeguarding and incident reporting obligations but does not enumerate the specific security practices required.

Thus, Level 2 practices are aligned to NIST SP 800-171.

Reference Documents:

CMMC Model v2.0 Overview, December 2021

NIST SP 800-171 Rev. 2

TheAudit and Accountability (AU) domainis one of the14 familiesof security requirements inNIST SP 800-171 Rev. 2, which is fully adopted byCMMC 2.0 Level 2.

Analysis of the Given Options:

A. Level 1→Incorrect

CMMCLevel 1only includes17 basic FAR 52.204-21 safeguarding requirementsand does not coverAudit and Accountability (AU)practices.

B. Level 2→Correct

TheAU domain is required at Level 2, which aligns withNIST SP 800-171.

CMMC 2.0 Level 2includes110 security controls, among whichAU-related controlsfocus on logging, monitoring, and accountability.

C. Levels 1 and 2→Incorrect

Level 1 does not requireaudit and accountability practices.

D. Levels 1 and 3→Incorrect

CMMC 2.0 only has Levels 1, 2, and 3, andAU is present in Level 2, making Level 3 irrelevant for this answer.

Official References Supporting the Correct Answer:

NIST SP 800-171 Rev. 2 (Audit and Accountability - Family 3.3)

TheAU domainconsists of security controls3.3.1 – 3.3.8, focusing on audit log generation, retention, and accountability.

CMMC 2.0 Level 2 Practices (Aligned with NIST SP 800-171)

AU practices (Audit and Accountability) are only required at Level 2.

Conclusion:

TheAU domain applies only to CMMC 2.0 Level 2, making the correct answer:

✅B. Level 2.

In the context of a Cybersecurity Maturity Model Certification (CMMC) assessment, the roles and responsibilities of individuals involved are clearly delineated to ensure a structured and effective evaluation process. The term "applicable staff" refers to personnel within the Organization Seeking Certification (OSC) who possess specific knowledge or expertise pertinent to the assessment. These individuals are integral to the assessment process as they provide essential information, demonstrate the implementation of security practices, and facilitate the assessment team's understanding of the organization's cybersecurity posture.

In this scenario, the employee serving as the primary system administrator is responsible for managing and maintaining the organization's systems. Given their comprehensive understanding of the system configurations, security controls, and operational procedures, this individual is best categorized as "applicable staff." Their involvement is crucial during the assessment, as they can provide detailed insights, demonstrate compliance measures, and address technical inquiries from the assessment team.

The other options can be delineated as follows:

Analyzer:Typically refers to individuals who analyze data or security incidents, often as part of a security operations center. This role is not specifically defined within the CMMC assessment context.

Inspector:Generally denotes a person who examines or inspects systems and processes, possibly as part of an internal audit or compliance check. This term is not a standard designation within the CMMC assessment framework.

Demonstration staff:While this could imply personnel responsible for demonstrating systems or processes, it is not a recognized role within the CMMC assessment process.

Therefore, the primary system administrator, by virtue of their role and responsibilities, aligns with the "applicable staff" category, playing a pivotal role in facilitating a successful CMMC assessment.

According to the CMMC Assessment Process (CAP), the Lead Assessor must use the CMMC Findings Brief to formally present assessment results to the Organization Seeking Certification (OSC). The Findings Brief ensures consistency across assessments and provides the OSC with an official, standardized presentation of results, including observed strengths, weaknesses, and any non-conformities.

Other options are incorrect because:

POA&M Brief is not part of the official CAP presentation.

CMMC Assessment Tracker Tool is an internal tool used by assessors, not for presentation to the OSC.

Recommended Findings template is not a recognized deliverable in CAP.

Reference Documents:

CMMC Assessment Process (CAP), v1.0

In the CMMC 2.0 Model, the "Advanced Level" specifically refers to Level 2. The CMMC model is designed to be cumulative, meaning each level builds upon the requirements of the levels beneath it.

Cumulative Framework: To achieve a certification at a specific level, an Organization Seeking Certification (OSC) must demonstrate compliance with all practices at that level and all practices from the lower levels.

Access Control (AC) Domain: The Access Control domain is one of the 14 domains in CMMC Level 2. It consists of a total of 22 practices:

Level 1 (Foundational): Contains 4 basic safeguarding practices (mapped to FAR 52.204-21).

Level 2 (Advanced): Adds 18 additional practices (mapped to NIST SP 800-171), totaling 22 practices for the AC domain at this level.

Defining "Advanced": The DoD defines the levels as Level 1 (Foundational), Level 2 (Advanced), and Level 3 (Expert). Therefore, the "Advanced Level" (Level 2) contains the practices from Level 1 and Level 2, but does not include the "Expert" (Level 3) practices, which are derived from NIST SP 800-172.

Why other options are incorrect:

Option A: While it contains Level 1 practices, it also includes Level 2 practices.

Option B: Level 3 is the "Expert" level, which is separate and higher than the "Advanced" level.

Option D: The Advanced level does not reach the requirements of Level 3.

Reference Documents:

CMMC Model Overview (v2.0): Section 3.2, "Level 2: Advanced," which describes the 110 practices derived from NIST SP 800-171.

32 CFR Part 170 (CMMC Program Rule): Details the structure of the levels and the requirement for cumulative compliance.

CMMC Level 2 Assessment Guide: Lists all 22 Access Control practices required for a Level 2 assessment, clearly identifying which are carried over from Level 1.

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During a Readiness Review (Phase 1), the purpose is to validate whether an OSC is prepared to move forward with a formal assessment. The CAP specifies that the Lead Assessor must collect sufficient evidence for each practice to make a preliminary determination of readiness.

Supporting Extracts from Official Content:

CAP v2.0, Readiness Review (§2.14): “The Lead Assessor must collect a sufficient amount of evidence for each practice to determine the OSC’s readiness.”

Why Option A is Correct:

The requirement is for sufficient evidence; CAP does not mandate a set number of assessment objects or methods.

Options B, C, and D incorrectly suggest minimum counts or methods that are not part of the readiness review requirements.

References (Official CMMC v2.0 Content):

CMMC Assessment Process (CAP) v2.0, Phase 1 Readiness Review.

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The Controlled Unclassified Information (CUI) Program, established by Executive Order 13556, standardizes the handling and marking of unclassified information that requires safeguarding or dissemination controls across federal agencies and their contractors. The National Archives and Records Administration (NARA) serves as the Executive Agent responsible for implementing the CUI Program.

In the context of the Cybersecurity Maturity Model Certification (CMMC) 2.0, particularly at Level 2, organizations are required to protect CUI by adhering to the security requirements outlined in NIST Special Publication 800-171. This includes proper marking of CUI to ensure that all personnel recognize and handle such information appropriately.

The NARA CUI Introduction to Marking provides comprehensive guidance on the correct procedures for marking documents and communications containing CUI. This resource is essential for training purposes, as it offers detailed instructions and examples to help personnel understand and implement proper CUI markings. By referring the sales team to the NARA CUI Introduction to Marking, the director of sales ensures that the team receives authoritative and standardized training on how to appropriately mark emails and other documents containing CUI, thereby maintaining compliance with federal regulations and CMMC requirements.

A Certified CMMC Instructor (CCI) is only authorized to deliver CMMC-AB (now The Cyber AB) approved training courses through a Licensed Training Provider (LTP). CCI instructors do not deliver DFARS or NARA CUI training under CMMC authorization—only formally approved CMMC courses.

Supporting Extracts from Official Content:

CMMC Ecosystem Roles: “CCIs are authorized to deliver CMMC-AB approved training courses through an LTP.”

Why Option A is Correct:

CCIs teach only CMMC-AB approved training.

Options B, C, and D include external trainings (DFARS or NARA CUI) that are not within the CCI’s scope.

References (Official CMMC v2.0 Content):

CMMC Ecosystem documentation – Roles and Responsibilities of LTPs and CCIs.

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Understanding Training Requirements in CMMC

The requirement for ensuring thatpersonnel are trained to carry out their assigned information security-related duties and responsibilitiesfirst appears inCMMC Level 2as part ofNIST SP 800-171 control AT.L2-3.2.1.

Key Details on the Training Requirement:

✔AT.L2-3.2.1: "Ensure that personnel are trained to carry out their assigned information security-related duties and responsibilities."

✔This control is derived fromNIST SP 800-171and applies toCMMC Level 2 (Advanced).

✔It ensures that employees handlingControlled Unclassified Information (CUI)understand theircybersecurity responsibilities.

Why is the Correct Answer "B. Level 2"?

A. Level 1 → Incorrect

CMMC Level 1 does not include this training requirement.Level 1 focuses on basic safeguarding ofFederal Contract Information (FCI)but doesnot require formal cybersecurity training.

B. Level 2 → Correct

The training requirement (AT.L2-3.2.1) first appears in CMMC Level 2, which aligns withNIST SP 800-171.

C. Level 3 → Incorrect

The training requirementalready exists in Level 2. Level 3 builds on Level 2 with additionalrisk management and advanced cybersecurity controls, but training is introduced at Level 2.

D. All levels → Incorrect

CMMC Level 1 does not include this requirement—it is first introduced in Level 2.

CMMC 2.0 References Supporting This Answer:

NIST SP 800-171 (Requirement 3.2.1)

Defines themandatory training requirementfor personnel handling CUI.

CMMC Assessment Guide for Level 2

ListsAT.L2-3.2.1as a required practice under Level 2.

CMMC 2.0 Model Overview

Confirms thatCMMC Level 2 aligns with NIST SP 800-171, which includes security training requirements.

TheCybersecurity Maturity Model Certification (CMMC) 2.0is primarily based on two key National Institute of Standards and Technology (NIST) Special Publications:

NIST SP 800-171– "Protecting Controlled Unclassified Information (CUI) in Nonfederal Systems and Organizations"

NIST SP 800-172– "Enhanced Security Requirements for Protecting Controlled Unclassified Information: A Supplement to NIST Special Publication 800-171"

Reference and Breakdown:

NIST SP 800-171

This document is thecore foundationof CMMC 2.0 and establishes the security requirements for protectingControlled Unclassified Information (CUI)in non-federal systems.

The 110 security controls fromNIST SP 800-171 Rev. 2are mapped directly toCMMC Level 2.

NIST SP 800-172

This supplement includesenhanced security requirementsfor organizations handlinghigh-value CUIthat faces advanced persistent threats (APTs).

These enhanced requirements apply toCMMC Level 3under the 2.0 model.

Eliminating Incorrect Answer Choices:

B. DFARS, FIPS 100, and NIST SP 800-171→Incorrect

WhileDFARS 252.204-7012mandates compliance withNIST SP 800-171,FIPS 100 does not existas a relevant cybersecurity standard.

C. DFARS, NIST, and Carnegie Mellon University→Incorrect

CMMC is aligned with DFARS and NIST but isnot developed or directly influenced by Carnegie Mellon University.

D. DFARS, FIPS 100, NIST SP 800-171, and Carnegie Mellon University→Incorrect

Again,FIPS 100 is not relevant, andCarnegie Mellon Universityis not a defining entity in the CMMC framework.

Official CMMC 2.0 References Supporting the Answer:

CMMC 2.0 Scoping Guide (2023)confirms thatCMMC Level 2 is entirely based on NIST SP 800-171.

CMMC 2.0 Level 3 Draft Documentationexplicitly referencesNIST SP 800-172for enhanced security requirements.

DoD Interim Rule (DFARS 252.204-7021)mandates that organizations meetNIST SP 800-171 for CUI protection.

Final Conclusion:

The CMMC 2.0 model is derivedsolely from NIST SP 800-171 and NIST SP 800-172, makingAnswer A the only correct choice.

Anorganization seeking helpto address security gaps—such asphysical access control deficiencies—needs acertified professional who can provide implementation supportwithoutbeing involved in the actual CMMC assessment.

Role of a Registered Practitioner (RP)

A Registered Practitioner (RP)is a CMMC-certified individualwho provides consulting and implementation supportto organizations butdoes not perform assessments.

RPs work independently from C3PAOsand canassist in fixing gapsin security controlsbeforeorafteran assessment.

Since RPs are not assessors, they can provide direct remediation supportwithout any conflict of interest.

Why "B. RP of an Organization Not Part of the Assessment" is Correct?

The OSC needs assistance in implementing security controls(not assessment).

An RP is trained and authorized to provide remediation and advisory services.

Conflict of interest rules prevent the assessing C3PAO from providing implementation support.

Why Other Answers Are Incorrect?

A. CCA of the C3PAO performing the assessment (Incorrect)

ACertified CMMC Assessor (CCA)is responsible for conducting the assessmentonly.

TheC3PAO performing the assessment cannot also provide remediationdue to aconflict of interest.

C. Practitioner of the Organization Performing the Assessment LTP (Incorrect)

The assessmentLead Technical Practitioner (LTP)cannot provide remediation support for an OSC they are assessing.

D. DoD Contract Official of the Organization Performing the Assessment (Incorrect)

DoD Contract Officialsoversee contract compliance butdo not provide cybersecurity implementation support.

Conclusion

The correct answer isB. RP of an organization not part of the assessment, asonly independent RPs can assist with remediation and implementation support.

Level 1 only addresses the protection of Federal Contract Information (FCI) and does not include requirements for safeguarding Controlled Unclassified Information (CUI).

Level 2 is explicitly designed to protect Controlled Unclassified Information (CUI). It requires implementation of all 110 security requirements from NIST SP 800-171 Rev. 2, which directly support the safeguarding of CUI and help prevent its unauthorized disclosure or exfiltration.

Level 3 builds on Level 2 by including a subset of requirements from NIST SP 800-172. These additional practices are designed to enhance the protection of CUI against advanced persistent threats (APTs), further strengthening defenses against exfiltration.

Therefore, the levels that focus on protecting CUI from exfiltration are Levels 2 and 3.

Reference Documents:

CMMC Model v2.0 Overview (DoD, December 2021)

NIST SP 800-171 Rev. 2,Protecting Controlled Unclassified Information in Nonfederal Systems and Organizations

NIST SP 800-172,Enhanced Security Requirements for Protecting Controlled Unclassified Information

In theCMMC 2.0 Assessment Process, after theAssessment Final Recommended Findings Brief, theLead Assessor and Assessment Team Membersmustreview the accuracy and validity of the Organization Seeking Certification (OSC)’s updated Plan of Action & Milestones (POA&M) and any accompanying evidence or scheduled collectionswithin180 days.

Relevant CMMC 2.0 Reference:

TheCMMC Assessment Process (CAP)outlines that organizations haveup to 180 daysto address identifieddeficienciesafter their initial assessment.

During this time, the OSC can update itsPOA&M with additional evidenceto demonstrate compliance.

Why is the Correct Answer 180 Days (B)?

A. 90 days → Incorrect

The CMMC CAP does not impose a90-day limiton POA&M updates; instead,180 daysis the standard timeframe.

B. 180 days → Correct

PerCMMC Assessment Process guidelines, theLead Assessor and Teammust review updateswithin 180 days.

C. 270 days → Incorrect

No official CMMC documentation mentions a270-dayreview period.

D. 360 days → Incorrect

The process must be completedfar sooner than 360 daysto maintain compliance.

CMMC 2.0 References Supporting this Answer:

CMMC Assessment Process (CAP) Document

Defines the180-day windowfor the OSC to update itsPOA&M and submit evidencefor review.

CMMC 2.0 Official Guidelines

Specifies that organizations are givenup to 180 daysto remediate deficiencies before reassessment.

For a practice to beadequately implementedin aCMMC Level 2 assessment, theresponsible personnel must demonstrate knowledge of deployment, maintenance, and operationof security tools such asantivirus programs. Simply having the tool in place isnot sufficient—there must be evidence that it isproperly configured, updated, and monitoredto protect against threats.

Step-by-Step Breakdown:

✅1. Relevant CMMC and NIST SP 800-171 Requirements

CMMC Level 2 aligns with NIST SP 800-171, which includes:

Requirement 3.14.5 (System and Information Integrity - SI-3):

"Employautomatedmechanisms toidentify, report, and correctsystem flaws in a timely manner."

Requirement 3.14.6 (SI-3(2)):

"Employautomated toolsto detect and prevent malware execution."

These requirements imply that theperson responsible for antivirus must understand how it is deployed and maintainedto ensure compliance.

✅2. Why the Team Member’s Knowledge is Insufficient

Antivirus tools requireregular updates,configuration adjustments, andmonitoringto function properly.

The responsible team member must:

Knowhow the antivirus was deployedacross systems.

Be able toconfirm updates, logs, and alerts are monitored.

Understand how torespond to malware detectionsand failures.

If the team member lacks this knowledge, assessors maydetermine the practice is not fully implemented.

✅3. Why the Other Answer Choices Are Incorrect:

(A) Yes, the antivirus program is available, so it is sufficient.❌

Incorrect:Just having antivirus softwareinstalleddoes not prove compliance. It must bemanaged and maintained.

(B) Yes, antivirus programs are automated to run independently.❌

Incorrect:While automation helps, security toolsrequire oversight, updates, and configuration.

(D) No, the team member's interview answers about deployment and maintenance are insufficient.❌

Partially correct but incomplete:Themain issueis that the team membermust have sufficient knowledge, not just that their answers are weak.

Final Validation from CMMC Documentation:

TheCMMC Assessment Guide for SI-3 and SI-3(2)states that personnel mustunderstand the function, deployment, and maintenance of security toolsto ensure proper implementation.

Thus, the correct answer is:

In the CMMC assessment process, conflicts of interest must be identified early to ensure an impartial and objective evaluation of an organization's compliance with CMMC 2.0 requirements. The appropriate phase for identifying conflicts of interest is during the"Verify Readiness to Conduct Assessment"phase.

Step-by-Step Explanation:

Assessment Planning & Conflict of Interest Consideration

Before an assessment begins, theC3PAO (Certified Third-Party Assessment Organization)or theDIBCAC (Defense Industrial Base Cybersecurity Assessment Center) for DOD-led assessmentsmust confirm that there are no conflicts of interest between assessors and the organization being assessed.

A conflict of interest may arise if an assessor haspreviously worked for, consulted with, or provided direct assistance tothe organization under review.

CMMC Assessment Process and Phases

The CMMC assessment process involves multiple steps, and the verification of readiness is acritical early phaseto ensure that the assessment is unbiased:

Analyze Requirements:This phase focuses on defining the assessment scope, but it does not include conflict of interest verification.

Develop Assessment Plan:This phase focuses on structuring the assessment methodology, not on identifying conflicts.

Verify Readiness to Conduct Assessment (Correct Answer):

At this stage, theC3PAO or assessment team must review potential conflicts of interest.

TheDefense Industrial Base Cybersecurity Assessment Center (DIBCAC)also ensures assessors do not have any prior relationships that could compromise the objectivity of the evaluation.

Generate Final Recommended Assessment Results:This phase occurs at the end of the process, after the assessment is complete, so conflict of interest identification is too late by this stage.

Official CMMC Documentation & References

CMMC Assessment Process (CAP) Guide– The CAP details procedures assessors must follow, including conflict of interest verification.

CMMC 2.0 Scoping and Assessment Guides– Published by the Cyber AB and DoD, these guides reinforce the need for impartiality and independence in assessments.

DoD Instruction 5200.48 (Controlled Unclassified Information Program)– Outlines requirements for ensuring objective cybersecurity assessments.

By ensuring conflicts of interest are identified in the"Verify Readiness to Conduct Assessment"phase, the integrity of the CMMC certification process is maintained, ensuring that assessments are conductedfairly, independently, and in accordance with DoD cybersecurity policies.

Understanding NIST SP 800-88 Rev. 1 and Media Sanitization

TheNIST Special Publication (SP) 800-88 Revision 1, Guidelines for Media Sanitization, provides guidance onsecure disposalof data from various types of storage media to prevent unauthorized access or recovery.

Three Categories of Data Disposal in NIST SP 800-88 Rev. 1

Clear

Useslogical techniquesto remove data from media, making it difficult to recover usingstandard system functions.

Example:Overwriting all datawith binary zeros or ones on a hard drive.

Applies to:Magnetic media, solid-state drives (SSD), and non-volatile memorywhen the media isreused within the same security environment.

Purge

Usesadvanced techniquesto make data recoveryinfeasible, even with forensic tools.

Example:Degaussinga magnetic hard drive orcryptographic erasure(deleting encryption keys).

Applies to:Media that is leaving organizational control or requires a higher level of assurance than "Clear".

Destroy

Physicallydamages the mediaso that data recovery isimpossible.

Example:Shredding, incinerating, pulverizing, or disintegratingstorage devices.

Applies to:Highly sensitive data that must be permanently eliminated.

Why "A. Clear, Purge, Destroy" is Correct?

B. Clear, Redact, Destroy (Incorrect)– "Redact" is a term used for document sanitization,notdata disposal.

C. Clear, Overwrite, Purge (Incorrect)– "Overwrite" is a method within "Clear," but it isnot a top-level categoryin NIST SP 800-88.

D. Clear, Overwrite, Destroy (Incorrect)– "Overwrite" is a sub-method of "Clear," but "Purge" is missing, making this incorrect.

Conclusion

The correct answer isA. Clear, Purge, Destroy, as these are thethree official categoriesof data disposal inNIST SP 800-88 Revision 1.

Scoping Requirements in CMMC Assessments

TheCMMC 2.0 Scoping GuideandCMMC Assessment Process (CAP) Documentclearly define what should be included in the scope of an assessment.

The assessment scope must cover:

All assets that process, store, or transmit FCI/CUI

Security Protection Assets (ESP)– these assets help protect FCI/CUI, such as firewalls, endpoint detection systems, and encryption mechanisms.

Thus, thecorrect scope includes both:

✅FCI/CUI Assets(Data storage, processing, or transmission assets)

✅Security Protection Assets (ESP)(Firewalls, security tools, etc.)

Why the Other Answers Are Incorrect

A. All assets documented in the business plan

❌Incorrect.Business plans may include assets unrelated to FCI/CUI, making this scopetoo broad. Only assets relevant to FCI/CUI should be assessed.

B. All assets regardless if they do or do not process, store, or transmit FCI/CUI

❌Incorrect. CMMC doesnotrequire organizations to include assets thathave no connection to FCI/CUI.

C. All entities, regardless of the line of business, associated with the organization

❌Incorrect.Only the assets relevant to FCI/CUI or security protection should be assessed. Unrelated business divisions (like a non-federal commercial division) areout-of-scope.

CMMC Official References

CMMC 2.0 Scoping Guide – Level 1 & Level 2

CMMC Assessment Process (CAP) Document

Thus,option D (All assets processing, storing, or transmitting FCI/CUI and security protection assets) is the correct answeras per official CMMC assessment scoping requirements.

The term that describes"the prevention of damage to, protection of, and restoration of computers and electronic communication systems/services, including information contained therein, to ensure its availability, integrity, authentication, confidentiality, and non-repudiation"isCybersecurity.

Step-by-Step Breakdown:

✅1. Cybersecurity Defined

Cybersecurityfocuses onprotecting networks, systems, and datafrom cyber threats.

It includes measures to ensure:

Availability(data is accessible when needed).

Integrity(data is accurate and unaltered).

Authentication(verifying users' identities).

Confidentiality(ensuring only authorized access).

Non-repudiation(preventing denial of actions).

The definition in the questionaligns directly with cybersecurity principles, making it the best answer.

✅2. Why the Other Answer Choices Are Incorrect:

(B) Data Security❌

Data securityfocusesspecificallyon protectingstored information(e.g., encryption, access controls), but cybersecurity is broader—it includesnetworks, systems, and communication services.

(C) Network Security❌

Network securityis asubset of cybersecuritythat focuses on protectingnetwork infrastructure(e.g., firewalls, intrusion detection systems).

The definition in the question includesmore than just networks, so cybersecurity is the better choice.

(D) Information Security❌

Information security (InfoSec)is related but broader than cybersecurity.

InfoSeccoversphysical and organizational security(e.g., policies, procedures) in addition todigital protections.

Final Validation from CMMC Documentation:

CMMC and NIST SP 800-171 define cybersecurityas the protection ofsystems, networks, and data from cyber threats.

DoD Cybersecurity Definitions(aligned with NIST) confirm that cybersecurity is the term thatbest fits the definition in the question.

Understanding the Role of Configuration Management (CM) in CMMC 2.0

TheConfiguration Management (CM) domainin CMMC 2.0 ensures that systems aresecurely configured and maintainedto prevent unauthorized or unnecessary changes that could introduce vulnerabilities. One key requirement in CM is torestrict, disable, or prevent the use of nonessential programsto reduce security risks.

Relevant CMMC 2.0 Practice:

CM.L2-3.4.1 – Establish and enforce security configuration settings for information technology products employed in organizational systems.

This practicerequires organizations to control system configurations, including the removal or restriction ofnonessential programs, functions, ports, and servicestoreduce attack surfaces.

The goal is tominimize exposure to cyber threatsby ensuring only necessary and approved software is running on the system.

Why is the Correct Answer CM (D)?

A. Access Control (AC) → Incorrect

Access Control (AC) focuses onmanaging user permissions and accessto systems and data, not restricting programs.

B. Media Protection (MP) → Incorrect

Media Protection (MP) deals withprotecting and controlling removable media(e.g., USBs, hard drives) rather than software or system configurations.

C. Asset Management (AM) → Incorrect

Asset Management (AM) is aboutidentifying and tracking IT assets, not configuring or restricting software.

D. Configuration Management (CM) → Correct

CM explicitly coverssecuring system configurationsbyrestricting nonessential programs, ports, services, and functions, making it the correct answer.

CMMC 2.0 References Supporting this Answer:

CMMC 2.0 Practice CM.L2-3.4.1(Security Configuration Management)

Requires organizations toenforce security configuration settingsandremove unnecessary programsto protect systems.

NIST SP 800-171 Requirement 3.4.1

Supportssecure configuration settingsandrestricting unauthorized applicationsto prevent security risks.

CMMC 2.0 Level 2 Requirement

This practice is aLevel 2 (Advanced) requirement, meaningorganizations handling Controlled Unclassified Information (CUI)must comply with it.

Understanding the CMMC Level 2 Final Report Requirements

For aCMMC Level 2 Assessment, theFinal CMMC Assessment Results Reportmust include:

Assessment findings for each practice

Final ratings (MET or NOT MET) for each practice

A detailed rationale for each practice rated as NOT MET

Why "B. Documented rationale for each failed practice" is Correct?

The CMMC Assessment Process (CAP) Guidestates that if a practice is markedNOT MET, theassessors must provide a rationale explaining why it failed.

This rationale helps theOSC understand what needs remediationand, if applicable, whether the deficiency can be addressed via aPlan of Action & Milestones (POA&M).

TheFinal Report serves as an official recordand must be submitted as part of theresults package.

Why Other Answers Are Incorrect?

A. Affirmation for each practice or control (Incorrect)

While the report includes aMET/NOT MET ratingfor each practice,affirmation is not a required component.

C. Suggested improvements for each failed practice (Incorrect)

Assessors do not provide recommendations for improvement—they only document findings and rationale.

Providing suggestions would create aconflict of interestperCMMC-AB Code of Professional Conduct.

D. Gaps or deltas due to any reciprocity model are recorded as met (Incorrect)

If an organization isleveraging reciprocity (e.g., FedRAMP, Joint Surveillance Voluntary Assessments), gapsmust still be documented—not automatically marked as "MET."

Conclusion

The correct answer isB. Documented rationale for each failed practice, as this is amandatory requirement in the Final CMMC Assessment Results Report.

According to the CMMC Assessment Process (CAP) and the C3PAO Authorization Requirements, every assessment conducted by a Certified Third-Party Assessment Organization (C3PAO) must undergo a formal Quality Management System (QMS) review before the results are finalized and uploaded to the eMASS (Enterprise Mission Assurance Support Service) or the SPRS (Supplier Performance Risk System).

The Quality Review Requirement: The CAP explicitly states that the C3PAO is responsible for the accuracy and integrity of the assessment findings. Before the Assessment Team Lead can formally submit the package, a person or team within the C3PAO (who was ideally not part of the active assessment team to ensure objectivity) must conduct an internal review. This review ensures that the evidence collected supports the "Met" or "Not Met" determinations and that all CMMC methodology requirements were followed.

Why other options are incorrect:

Option A: While there may be administrative costs associated with maintaining C3PAO status, paying a specific "per-submission fee" is not a mandatory procedural stepwithin the assessment lifecyclethat governs the validity of the results.

Option C: The Cyber AB (CMMC-AB) provides the platform and oversight, but a "forthcoming notification" is not a formal requirement in the CAP; the act of submission itself serves as the notification.

Option D: While a final briefing is a "best practice" and usually occurs during the "Post-Assessment" phase, the internal quality review (Option B) is the regulatory mandate that must be completed to ensure the C3PAO's certification of the results is valid and defensible.

Reference Documents:

CMMC Assessment Process (CAP) v1.0: Section on "Phase 4: Reporting Results," specifically the sub-section on C3PAO Quality Assurance Review.

C3PAO Quality Management System (QMS) Requirements: Outlines the necessity for internal validation of assessment packages to maintain accreditation.

TheLimited Practice Deficiency Correction Evaluationprocess occurs when anOrganization Seeking Certification (OSC)has undergone aCMMC Level 2 Assessmentby aCertified Third-Party Assessment Organization (C3PAO)and hasunresolved deficienciesin some security practices.

According toCMMC 2.0 policy and DFARS 252.204-7021, OSCs can still achieveInterim Certificationif they meet theminimum thresholdof security practices while addressing deficiencies through aPlan of Action & Milestones (POA&M).

Minimum Number of Practices Required

TheCMMC 2.0 Interim Rulestates that an OSCmust meet at least 100 out of 110 practicesto qualify for aPOA&M-based remediation.

A maximum of 10 practices can be listed in the POA&Mfor later correction.

Failure to meet at least 100 practices results in failing the assessment outright, requiring a full reassessment after remediation.

Why "C. 100 Practices" is Correct?

The Lead Assessor can recommend POA&M placementonly if the OSC meets at least 100 practices.

Less than 100 practices scored as MET means the OSC does not qualify for a POA&Mand mustretest completely.

DFARS 252.204-7021 and CMMC 2.0 policiesconfirm the100-practice thresholdfor conditional certification.

Why Other Answers Are Incorrect?

A. 80 practices (Incorrect)– Falls well below the 100-practice requirement.

B. 88 practices (Incorrect)– Still below the POA&M eligibility threshold.

D. 110 practices (Incorrect)– While meeting 110 practices would be ideal,CMMC allows a POA&M option at 100 practices.

Conclusion

The correct answer isC. 100 practices, as this meets theminimum threshold for POA&M-based Interim Certification.

Understanding CMMC Assessment Procedures

ACMMC assessment procedureconsists of:

Assessment Objective– Defines what is being evaluated and the expected outcome.

Assessment Methods– Specifies how the evaluation is conducted (e.g.,examination, interviews, testing).

Assessment Objects– Identifies what is being evaluated, such as policies, systems, or people.

Why the Correct Answer is "C"?

Assessment Objectivesincludedetermination statementsthat describe the expected outcome for each CMMC security practice.

These statements define whether a practice has beenadequately implementedbased ondocumented evidence and assessment findings.

TheCMMC Assessment Process (CAP) GuideandNIST SP 800-171Aspecify that each practice has a determination statement guiding assessment decisions.

Why Not the Other Options?

A. Specifications and mechanisms→Incorrect

These belong toassessment objects, which refer to the systems, policies, and mechanisms being evaluated.

B. Examination, interviews, and testing→Incorrect

These areassessment methods, which describe how assessorsverifycompliance (e.g., through interviews or testing).

D. Exercising assessment objects under specified conditions→Incorrect

This refers toassessment testing, which is a method, not an assessment objective.

Relevant CMMC 2.0 References:

CMMC Assessment Process (CAP) Guide– Describes determination statements as the core of assessment objectives.

NIST SP 800-171A– Defines determination statements as a key element of evaluating security controls.

Final Justification:

Since anassessment objectiveincludes adetermination statementthat describes whether a practice is implemented properly, the correct answer isC.

When preparing forCMMC compliance, organizations must ensure that theirnetwork configurations align with required cybersecurity controls. Ifnetwork administratorsdisagree on certain configurations, the mostobjective and accurateway to resolve the disagreement is by referencingofficial CMMC guidanceandNIST SP 800-171 requirements, which form the foundation of CMMC Level 2.

Step-by-Step Breakdown:

CMMC Assessment Guides as the Primary Reference

TheCMMC Assessment Guides (Level 1 & Level 2)provide clearinterpretationsof security practices.

Theyexplain how each practice should be implemented and assessedduring certification.

NIST SP 800-171 as the Compliance Baseline

CMMC Level 2is based directly onNIST SP 800-171, which outlines the110 security controlsrequired for protectingControlled Unclassified Information (CUI).

Network configurations must complywith NIST-defined security requirements, including:

Access Control (AC) – Ensuring least privilege principles.

Audit and Accountability (AU) – Logging and monitoring network activity.

System and Communications Protection (SC) – Secure network design and encryption.

Why the Other Answer Choices Are Incorrect:

(A) Consult with the CEO of the company:

ACEO is not necessarily a cybersecurity expertand may not be familiar with CMMC technical requirements.

Technical compliance decisions should be based onCMMC and NISTframeworks, not executive opinions.

(C) Go with the network administrator's ideas with the least stringent controls:

Choosingless stringent controls increases security riskand could lead toCMMC non-compliance.

(D) Go with the network administrator's ideas with the most stringent controls:

While security is important,more stringent controlsmay introduceoperational inefficienciesorunnecessary coststhat are not required for compliance.

The correct approach is to implement what is required by CMMC and NIST SP 800-171, no more and no less.

Final Validation from CMMC Documentation:

TheCMMC Assessment GuidesandNIST SP 800-171 Rev. 2areofficial sourcesthat provide the most reliable guidance on compliance.

CMMC Level 2 is entirely based on NIST SP 800-171, making it the definitive source for resolving security disagreements.

Thus, the correct answer is:

B. Consult the CMMC Assessment Guides and NIST SP 800-171.

Understanding CMMC 2.0 Incident Response Practices

TheIncident Response (IR) domaininCMMC 2.0 Level 2aligns withNIST SP 800-171, Section 3.6, which defines requirements forestablishing and maintaining an incident response capability.

Why "A. IR.L2-3.6.1: Incident Handling" is Correct?

The documentation provideddescribes an incident response capability that includes preparation, detection, analysis, containment, recovery, and user response activities.

IR.L2-3.6.1specifically requires organizations toestablish an incident handling processcovering:

Preparation

Detection & Analysis

Containment

Eradication & Recovery

Post-Incident Response

Why Other Answers Are Incorrect?

B. IR.L2-3.6.2: Incident Reporting (Incorrect)

Incident reporting focuses on reporting incidents to external parties (e.g., DoD, DIBNet),which isnot what the provided documentation describes.

C. IR.L2-3.6.3: Incident Response Testing (Incorrect)

Incident response testing ensures that the response process is regularly tested and evaluated,which isnot the primary focus of the documentation provided.

D. IR.L2-3.6.4: Incident Spillage (Incorrect)

Incident spillage specifically refers to CUI exposure or handling unauthorized CUI incidents,which isnot the scenario described.

Conclusion

The correct answer isA. IR.L2-3.6.1: Incident Handling, as the documentationattests to the establishment of an incident response capability.

Assets that store, process, or transmit FCI or CUI are always in scope for CMMC. If a server with a cloud provider is used for long-term storage of FCI, that server is considered in scope because it directly holds covered data.

Supporting Extracts from Official Content:

CMMC Scoping Guide for Level 1: “Assets that store, process, or transmit FCI are in scope.”

CMMC Scoping Guide for Level 2: confirms the same rule applies for CUI.

Why Option A is Correct:

The server stores FCI, making it automatically in scope.

Option B is incorrect because long-term storage does not make an asset out of scope.

Option C is incorrect — Level 1 (FCI) does not require a Level 2 certified provider.

Option D is incorrect because encryption does not remove scope requirements.

References (Official CMMC v2.0 Content):

CMMC Scoping Guide, Level 1.

CMMC Model v2.0, Scoping and Implementation guidance.

===========

Which NIST SP Defines the Assessment Procedures for CMMC?

CMMC Level 2 isdirectly based on NIST SP 800-171, and the assessment procedures used in CMMC assessments are derived fromNIST SP 800-171A.

Step-by-Step Breakdown:

✅1. NIST SP 800-171A Defines Assessment Procedures

NIST SP 800-171Ais titled"Assessing Security Requirements for Controlled Unclassified Information (CUI)".

It providesdetailed assessment objectives and test proceduresfor evaluating compliance withNIST SP 800-171 security requirements, whichCMMC Level 2 is fully aligned with.

CMMC Assessors use 800-171Aas abaseline for assessing the effectiveness of security controls.

✅2. Why the Other Answer Choices Are Incorrect:

(A) NIST SP 800-53❌

800-53 defines security controlsfor federal information systems, but it doesnot provide assessment procedures specific to CMMC.

(B) NIST SP 800-53A❌

800-53A provides assessment procedures for 800-53 controls, butCMMC is based on NIST SP 800-171, not 800-53.

(C) NIST SP 800-171❌

800-171 defines security requirements, butit does not provide assessment procedures. Theassessment proceduresare in800-171A.

Final Validation from CMMC Documentation:

TheCMMC Assessment Guide (Level 2)explicitly states that assessment procedures are derived fromNIST SP 800-171A.

Thus, the correct answer is:

Per DoDI 5200.48, Controlled Unclassified Information (CUI), the minimum marking requirement is that the word “CUI” must appear in the header and footer of each page of a document containing CUI. Additional markings such as portion markings or cover sheets may be applied depending on the situation, but the minimum baseline requirement is header and footer placement of "CUI".

Reference Documents:

DoDI 5200.48,Controlled Unclassified Information (CUI)

Understanding CMMC Asset Categorization

TheCMMC 2.0 Scoping Guidedefines how assets are categorized based on their involvement withFederal Contract Information (FCI)andControlled Unclassified Information (CUI).

In this scenario:

Thegovernment services divisioninteracts withfederal clientsandreceives FCI, making its assetsin-scopefor CMMC Level 1.

Thecommercial services divisioninteractsonly with non-federal clientsanddoes not handle FCI—this means its assets arenot subject to CMMC Level 1 requirementsand should be classified asOut-of-Scope Assets.

CMMC 2.0 Definition of Out-of-Scope Assets

As per theCMMC Scoping Guide, assets that:

✅Do not store, process, or transmit FCI/CUI

✅Do not directly impact the security of in-scope assets

✅Are completely segregated from the FCI/CUI environment

are classified asOut-of-Scope Assets.

Since thecommercial services divisiononly processespublicly available information and has no interaction with FCI, its assets areout-of-scopefor CMMC Level 1 assessment.

Why the Other Answers Are Incorrect

A. FCI Assets

❌Incorrect. FCI assets areonly those that store, process, or transmit FCI. The commercial services division doesnothandle FCI, so its assets donotqualify.

B. Specialized Assets

❌Incorrect. Specialized assets refer toInternet of Things (IoT), Operational Technology (OT), and test equipment. These donot applyto a general commercial services division.

D. Operational Technology Assets

❌Incorrect.Operational Technology (OT) Assetsinvolveindustrial control systems, SCADA, and manufacturing equipment—which are not relevant to this scenario.

CMMC Official References

CMMC 2.0 Scoping Guide – Level 1 & Level 2

CMMC Assessment Process (CAP) Document

Thus,option C (Out-of-Scope Assets) is the correct answerbased on official CMMC scoping guidance.

Background on Legacy Markings and CUI

Legacy markings refer to classification labels used before the implementation of the Controlled Unclassified Information (CUI) Program under DoD Instruction 5200.48.

Documents with legacy markings (such as “For Official Use Only” (FOUO) or “Sensitive But Unclassified” (SBU)) must be reviewed for re-marking or redaction to align with CUI requirements.

When Must Legacy Markings Be Updated?

If the document is retained internally (Answer A - Incorrect): Documents under DoD control do not require immediate re-marking unless they are being shared externally.

If the document is classified as Secret (Answer B - Incorrect): This question is about CUI, not classified information. Secret-level documents follow different marking rules under DoD Manual 5200.01.

If a document is being shared externally (Answer C - Correct):

According to DoD Instruction 5200.48, Section 3.6(a), organizations must review legacy markings before sharing documents outside the organization.

The document must be re-marked in compliance with the CUI Program before dissemination.

If the original document does not contain CUI (Answer D - Incorrect): The original source document's status does not affect the requirement to re-mark a derivative document if it contains CUI.

Conclusion

The correct answer is C: Documents with legacy markings must be re-marked or redacted when being shared outside the organization to comply with DoD CUI guidelines.

Understanding SI.L2-3.14.6: Monitor Communications for Attacks

The practiceSI.L2-3.14.6fromNIST SP 800-171(aligned with CMMC Level 2) requires an organization tomonitor organizational communications for indicators of attack. This typically includes:

✅Intrusion Detection Systems (IDS)andIntrusion Prevention Systems (IPS)

✅Log analysis and network monitoring

✅Incident response planningfor detected threats

As part of aCMMC Level 2 assessment, theCertified CMMC Assessor (CCA)must ensure that theOSC (Organization Seeking Certification)hasproperly implemented and documenteditsmonitoring capabilities.

Why "Review an artifact to check key references for the configuration of the IDS or IPS" is Correct?

TheCCA must collect sufficient objective evidenceto determine compliance.

Reviewing anartifact(such as system configurations, IDS/IPS logs, or security policies)helps validatethat intrusion detection is properly implemented.

Configuration settings providedirect evidenceof whethermonitoring for attacksis effectively applied.

Breakdown of Answer Choices

Option

Description

Correct?

A. Conduct a penetration test

❌Incorrect–Penetration testing isnot requiredfor CMMC Level 2 assessments and falls outside an assessor's responsibilities.

B. Interview the intrusion detection system's supplier.

❌Incorrect–Thesupplier does not determine compliance; the assessor needs evidence from theOSC’s implementation.

C. Upload known malicious code and observe the system response.

❌Incorrect–This would beinvasive testing, which isnot part of a CMMC assessment.

D. Review an artifact to check key references for the configuration of the IDS or IPS practice for additional guidance on intrusion detection and prevention systems.

✅Correct – Reviewing system artifacts provides direct evidence of compliance with SI.L2-3.14.6.

Official References from CMMC 2.0 and NIST SP 800-171 Documentation

NIST SP 800-171 SI.L2-3.14.6– Requires monitoring communications for attack indicators.

CMMC Assessment Process Guide (CAP)– Describesartifact reviewas an essential assessment method.

Final Verification and Conclusion

The correct answer isD. Review an artifact to check key references for the configuration of the IDS or IPS practice for additional guidance on intrusion detection and prevention systems.

This aligns withCMMC 2.0 Level 2 assessment requirementsandSI.L2-3.14.6 compliance verification.

Understanding CUI Markings and the Role of NARA

What Does "CUI//SP-PRVCY//FED Only" Mean?

The email containsControlled Unclassified Information (CUI)withspecific categories and dissemination controls.

CUI//SP-PRVCY//FED Onlybreaks down as follows:

CUI→ Controlled Unclassified Information designation.

SP-PRVCY→Specifiedcategory forPrivacy Information(SP stands for "Specified").

FED Only→ Restriction forFederal Government use only(not for contractors or the public).

Who Maintains the Official CUI Registry?

TheNational Archives and Records Administration (NARA) oversees the CUI Programand maintains the officialCUI Registry(https://www.archives.gov/cui).

The CUI Registry providesdefinitions, marking guidance, and categoriesfor all CUI labels, including "SP-PRVCY" and dissemination controls like "FED Only."

Why NARA is the Correct Answer:

NARA is the governing body responsible for defining and managing CUI markings.

Any organization handling CUI shouldrefer to the NARA CUI Registryfor official marking interpretations.

DoD contractors and other organizationsmust comply with NARA guidelines when handling, marking, and disseminating CUI.

Clarification of Incorrect Options:

B. CMMC-AB– TheCMMC Accreditation Bodymanages certification assessments butdoes not define or interpret CUI markings.

C. DoD Contractors FAQ Page– The DoD may provide general contractor guidance, butCUI markings are governed by NARA, not an FAQ page.

D. DoD 239.7601 Definitions Page– This refers to generalDoD acquisition definitions, butCUI categories and markings fall under NARA’s authority.

Understanding Multi-Function Device (MFD) Security in CMMC

Multi-function devices (MFDs), such asscanners, printers, and copiers,process, store, and transmit FCI, making them apotential attack surfacefor unauthorized access.

Thebest technical controlto limit MFD access to only authorized systems isVirtual LAN (VLAN) restrictions, whichsegment and isolate network traffic.

Why the Correct Answer is "A. Virtual LAN (VLAN) Restrictions"?

VLAN Restrictions Provide Network Segmentation

VLANsisolate the MFDfrom unauthorized systems, ensuringonly approved devicescan communicate with it.

Prevents unauthorized network access bylimiting connectionsto specific IPs or subnets.

Meets CMMC 2.0 Network Security Controls

Aligns withCMMC System and Communications Protection (SC) Practicesfor network segmentation and access control.

Reducesthe risk of unauthorized access to scanned and printed FCI.

Why Not the Other Options?

B. Single administrative account→Incorrect

Asingle admin accountdoes not restrict accessbetween devices, only controlswho can configurethe MFD.

C. Documentation showing MFD configuration→Incorrect

Documentation helps with compliance butdoes not actively restrict access.

D. Access lists only known to the IT administrator→Incorrect

Access lists should besystem-enforced, not just "known" to the administrator.

Relevant CMMC 2.0 References:

CMMC Practice SC.3.192 (Network Segmentation)– Requires restricting access usingnetwork segmentation techniques such as VLANs.

NIST SP 800-171 (SC Family)– Supportsisolation of sensitive devicesusing VLANs and other segmentation controls.

Final Justification:

SinceVirtual LAN (VLAN) restrictions enforce access control at the network level, the correct answer isA. Virtual LAN (VLAN) restrictions.