CMMC-CCP Questions and Answers

Per the CMMC Assessment Process (CAP), when planning an assessment, the Lead Assessor must coordinate with the Organization Seeking Certification (OSC) to select interview participants who can provide clarity and understanding of their practice activities. The intent is to interview individuals directly involved with and knowledgeable about the processes and practices under review, rather than selecting personnel based solely on rank, clearance, or formal expertise in CMMC.

This ensures the assessment is evidence-based and grounded in how practices are actually performed within the OSC.

Reference Documents:

CMMC Assessment Process (CAP), v1.0

Under theCMMC Assessment Process (CAP)andCMMC 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 throughthree 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.

TheCMMC Assessment Process (CAP)states that an assessor must use acombinationof evidence-gathering methods (examinations, interviews, and tests) to determine compliance.

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

Solely relying ononemethod (like interviews in Option A) is insufficient.

Testing all practices or objectives (Option B)is unnecessary, as assessors followscoping guidanceto determine which objectives need deeper examination.

Testing only "certain" objectives (Option C)does not fully align with the requirement of gatheringsufficient evidencefrom multiple methods.

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

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

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

Why Option D is CorrectCMMC 2.0 and Official Documentation ReferencesFinal VerificationTo ensure compliance withCMMC 2.0 guidelines and official documentation, an assessor must useexaminations, interviews, and teststo gather evidence effectively, makingOption D the correct answer.

Step 1: Understand the Assessor’s Role and Chain of ResponsibilityDuring a CMMC assessment, the assessor ispart of the team organized by a C3PAO (Certified Third-Party Assessment Organization). If the assessor determines thatevidence is insufficient or inadequate, they arenot authorizedto act independently in terms of halting or postponing the assessment.

Source Reference: CMMC Assessment Process (CAP) v1.0 – Section 3.5.4 & 3.5.6

"If the Assessment Team identifies gaps in the sufficiency or adequacy of evidence, they must work with the Lead Assessor and C3PAO to determine the appropriate course of action."

The C3PAO is responsible for overseeing the assessment lifecycle.

If evidence isnot adequate, the assessor mustescalate within their organization(i.e., to the Lead Assessor or C3PAO point of contact) to:

Request clarifications from the OSC,

Determine if additional evidence can be requested,

Decide on continuing, pausing, or modifying the assessment schedule.

✅Step 2: Why Contacting the C3PAO Is the Correct Action

A. Notify the CMMC-AB✘ Incorrect. The Cyber AB (formerly CMMC-AB) isnot involved in operational aspectsof assessments. They do not manage day-to-day assessment decisions.

B. Cancel the assessment✘ Incorrect. An assessorcannot unilaterally cancelan assessment. Only theC3PAO, in consultation with all parties, may take such action.

C. Postpone the assessment✘ Incorrect. Postponements are logistical decisions that must be managed through theC3PAO, not an individual assessor.

❌Why the Other Options Are Incorrect

When an assessor determines that the evidence submitted by an OSC is inadequate or insufficient to meet a CMMC practice, thecorrect and required course of action is to consult with the C3PAO. The C3PAO will provide guidance or coordinate appropriate next steps.

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.

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.

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

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.

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

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.

CMMC 2.0 References Supporting this Answer:

Understanding Federal Contract Information (FCI) and Publicly Accessible InformationFederal Contract Information (FCI)isnon-public informationprovided by or generated for the U.S. governmentunder a contractthat isnot intended for public release.

Key Characteristics of FCI:✔FCI includesdetails related togovernment contracts, project specifics, and performance data.

✔It must be protected under FAR 52.204-21, which requiresbasic safeguarding measuresto prevent unauthorized access.

✔Posting FCI on a public site is a security violationsince it ismeant to be restrictedfrom public disclosure.

A. FCI → Correct

FCI must be protected from unauthorized access, and if it wasincorrectly published online, it should have been restricted.

B. Change of leadership in the organization → Incorrect

Leadership changes are typically public informationand do not require restriction unless they involve sensitive government-related security clearances.

C. Launching of their new business service line → Incorrect

Marketing and business announcementsare generallypublicly availableandnot restricted information.

D. Public releases identifying major deals signed with commercial entities → Incorrect

Commercial contracts and business deals are not considered FCIunless they involvegovernment contracts.

Why is the Correct Answer "A. FCI (Federal Contract Information)"?

FAR 52.204-21 (Basic Safeguarding of Covered Contractor Information Systems)

DefinesFCI as sensitive but unclassified informationthat must beprotected from public disclosure.

CMMC 2.0 Level 1 Requirements

Requires contractors toprotect FCI under basic cybersecurity standardsto prevent unauthorized exposure.

DoD Guidance on FCI Protection

States thatpublishing FCI on public websites violates federal cybersecurity requirements.

CMMC 2.0 References Supporting This Answer:

Understanding C3PAO RequirementsACertified Third-Party Assessment Organization (C3PAO)is an entityauthorized by the CMMC Accreditation Body (CMMC-AB)to conductCMMC Level 2 Assessmentsfor organizations handlingControlled Unclassified Information (CUI).

Key Requirements for a C3PAO to Conduct Assessments:✔Must be authorized by CMMC-AB before conducting assessments.

✔Must meet CMMC-AB and DoD cybersecurity and process requirements.

✔Must comply with ISO/IEC 17020 standards for inspection bodies.

✔Must undergo a rigorous vetting process, including cybersecurity verification.

A. An authorized C3PAO must meet some DoD and all ISO/IEC 17020 requirements → Incorrect

C3PAOs must comply with CMMC-AB authorization requirementsbefore performing assessments.

While they must align withISO/IEC 17020, they donotnecessarily meet all requirements upfront.

B. An accredited C3PAO must meet all DoD and some ISO/IEC 17020 requirements → Incorrect

C3PAOs are not accredited by DoD; they areauthorized by CMMC-ABto perform assessments.

Accreditation follows full compliance with CMMC-AB and ISO/IEC 17020 requirements.

C. A C3PAO must be accredited by DoD before being able to conduct assessments → Incorrect

The DoD does not directly accredit C3PAOs—CMMC-AB is responsible forauthorization and oversight.

D. A C3PAO must be authorized by CMMC-AB before being able to conduct assessments → Correct

CMMC-AB grants authorization to C3PAOs, allowing them to perform assessmentsonly after meeting specific requirements.

Why is the Correct Answer "D" (A C3PAO must be authorized by CMMC-AB before being able to conduct assessments)?

CMMC-AB Certified Third-Party Assessment Organization (C3PAO) Guidelines

States thatC3PAOs must receive CMMC-AB authorization before conducting assessments.

CMMC 2.0 Assessment Process (CAP) Document

Specifies that onlyC3PAOs authorized by CMMC-AB can conduct official CMMC assessments.

ISO/IEC 17020 Compliance for C3PAOs

Defines theinspection body requirements for C3PAOs, which must be met for accreditation.

CMMC 2.0 References Supporting This Answer:

In the context of CMMC 2.0 assessments, thesufficiency criteriaare used to determine whether the assessment team has gathered enough evidence to support their conclusions about compliance with a given requirement.

Definition of Sufficiency Criteria:

Sufficiency refers to thequantityandcompletenessof the evidence collected during an assessment.

This ensures that the evidence collected isenough to support an objective and valid determinationof compliance.

Why Sufficiency Matters in CMMC 2.0:

Assessors must ensure that the amount of evidence collected isadequate to substantiate findingswithout doubt or gaps.

This prevents situations where an organization might claim compliance but lacks thenecessary documentation, technical evidence, or procedural validationto prove it.

Official CMMC 2.0 References:

TheCMMC Assessment Process (CAP) Guidedefines sufficiency as a key factor in validating assessment findings.

According toCMMC 2.0 Level 2 Scoping Guidance, assessors must apply sufficiency criteria when reviewingartifacts, documentation, interviews, and system configurations.

TheDoD CMMC Assessment Guide(aligned with NIST SP 800-171A) emphasizes that compliance decisions must besupported by a sufficient amount of verifiable evidence.

Comparison with Other Criteria:

Adequacy Criteria→ Focuses onqualityof the evidence, not the quantity.

Objectivity Criteria→ Ensures evidence isunbiased and impartial, not necessarily complete.

Subjectivity Criteria→ Not applicable in CMMC since assessments must beobjective and based on factual evidence.

Step-by-Step Breakdown:Conclusion:To verify compliance in CMMC 2.0 assessments, the assessment team must ensuresufficientevidence is available to support a determination. This makes"Sufficiency Criteria" (Option C)the correct answer.

During aCMMC readiness review, anOrganization Seeking Certification (OSC)may argue that a specificenclave (network segment or system) is out of scopefor assessment. TheLead Assessor is responsible for verifying and approving this request.

Certified CMMC Professional (CCP)

A CCP supports OSCs inpreparing for assessmentsbutdoes not make final scope determinations.

Certified Third-Party Assessment Organization (C3PAO)

The C3PAOoversees the assessmentbut doesnot personally verify scope exclusions—that falls under theLead Assessor’s role.

Lead Assessor (Correct Answer)

TheLead Assessor has the authorityto determine if anenclave is out of scopebased on OSC-provided evidence.

The Lead Assessor followsCMMC Assessment Process (CAP) guidelinesto ensure proper scoping.

Advisory Board

TheCMMC-AB (Advisory Board) does not make scope determinations. It focuses onprogram oversightandcertification processes.

CMMC Assessment Process (CAP) v1.0

TheLead Assessor is responsible for confirming the assessment scopeand determining enclave applicability.

CMMC Scoping Guidance for Level 2 Assessments

Requires theLead Assessor to review and approve any enclave exclusionsbefore finalizing the assessment scope.

Roles and Responsibilities in CMMC Assessments:Official References Supporting the Correct Answer:Conclusion:TheLead Assessoris the correct answer because they have the authority to verify scope determinations during the assessment.

✅Correct Answer: C. Lead Assessor

Understanding the Role of a Registered Provider Organization (RPO)ARegistered Provider Organization (RPO)is an entity recognized by theCMMC Accreditation Body (CMMC-AB)to provideconsulting servicesto organizations seekingCMMC certification.

Key Functions of an RPO✅Consulting servicesto help companies prepare for CMMC assessments.

✅Guidance on security controlsrequired for compliance.

✅Assistance with documentation, policy development, and gap analysis.

✅Preparation for third-party CMMC assessmentsbutdoes not conduct official CMMC assessments(this is the role of a C3PAO).

Consulting servicesare thebroadest and most comprehensivefunction of an RPO.

RPOs do not conduct assessments(eliminating option D).

Training and educationmay be part of consulting but arenot the primary function(eliminating A and B).

Consulting includes training, guidance, documentation assistance, and security readiness, making it themost comprehensive service offered.

Why "Consulting Services" is the Correct Answer?Breakdown of Answer ChoicesOption

Description

Correct?

A. Training services

❌Incorrect–RPOs may provide training, but this isnot their primary function.

B. Education services

❌Incorrect–Similar to training, butnot the most comprehensive service.

C. Consulting services

✅Correct – The core function of an RPO is consulting, which includes various readiness services.

D. Assessment services

❌Incorrect–Only aC3PAO (Certified Third-Party Assessment Organization)can conductofficial CMMC assessments.

TheCMMC-AB RPO Programdefines an RPO as aconsulting organization that assists companies in preparing for CMMC certificationbutdoes not perform assessments.

Official References from CMMC 2.0 DocumentationFinal Verification and ConclusionThe correct answer isC. Consulting services, asRPOs primarily provide advisory and readiness supportto organizations preparing forCMMC compliance.

Understanding RA.L2-3.11.2: Vulnerability ScanningTheRA.L2-3.11.2practice requires organizations to:

✔Regularly scan for vulnerabilitiesin systems and applications.

✔Perform scans when new vulnerabilities are identified.

✔Use vulnerability scanning tools or servicesto proactively detect security weaknesses.

Anincident monitoring reporttrackssecurity incidents, notvulnerability scanning activities.

Vulnerability scanning reportsshould include:✔A list of vulnerabilities detected.✔Remediation actions taken.✔Scan frequency and schedule.

Theabsence of reported security incidentsdoesnotconfirm that vulnerability scans were performed.

Why Is an Incident Monitoring Report Irrelevant?

A. Inadequate because it is irrelevant to the practice → Correct

Alack of reported security incidents does not confirm that vulnerability scanning was performed.

B. Adequate because it fits well for expected artifacts → Incorrect

Incident monitoring reportsare not expected artifactsfor this control.Vulnerability scan reportsare required instead.

C. Adequate because no security incidents were reported → Incorrect

The absence of incidents does not mean the OSC is performing vulnerability scanning. This isnot valid evidence.

D. Inadequate because the OSC's service provider should be interviewed → Incorrect

While interviewing the provider may be useful, themain issue is that the provided evidence is irrelevant. Thecorrect evidence (vulnerability scan reports) is missing.

Why is the Correct Answer "A. Inadequate because it is irrelevant to the practice"?

NIST SP 800-171 (Requirement 3.11.2 – Vulnerability Scanning)

Defines the requirement toscan for vulnerabilities periodically and when new threats emerge.

CMMC Assessment Guide for Level 2

Specifies that evidence for RA.L2-3.11.2 should includevulnerability scan reports, not incident monitoring reports.

CMMC 2.0 Model Overview

Confirms that organizationsmust proactively identify vulnerabilities through scanning, not just rely on incident detection.

CMMC 2.0 References Supporting This Answer:

TheCMMC 2.0 framework applies to nonfederal systemsthat process, store, or transmitCUI.

Scoping determineswhich system components must comply with CMMC practices.

If a systemprocesses, stores, or transmits CUI, orprovides security for those systems, itmust be included in the assessment scope.

CMMC Applies to Contractors, Not Federal Systems

CMMC isdesigned for Department of Defense (DoD) contractors, notfederal systems.

Federal systems arealready governed by NIST SP 800-53and other regulations.

Scope Includes Systems That Process CUI AND Those That Protect Them

Systemsprocessing, storing, or transmitting CUIare in scope.

Systems thatprovide protection for CUI systems(e.g., firewalls, monitoring tools, security appliances) arealso in scope.

A. Federal systems that process, store, or transmit CUI.→Incorrect

CMMCdoes not apply to federal systems.

B. Nonfederal systems that process, store, or transmit CUI.→Partially correct but incomplete

Itexcludes security systemsthat protect CUI assets, whichare also in scope.

C. Federal systems that process, store, or transmit CUI, or that provide protection for the system components.→Incorrect

CMMConly applies to nonfederal systems.

CMMC Scoping Guide (Nov 2021)– Confirms that CMMCapplies to nonfederal systemsprocessingCUI.

NIST SP 800-171 Rev. 2– Specifies security requirements fornonfederal systemshandling CUI.

DFARS 252.204-7012– Requires DoD contractors to implementNIST SP 800-171onnonfederal systemshandling CUI.

Understanding Scoping in CMMC 2.0Why the Correct Answer is "D. Nonfederal systems that process, store, or transmit CUI, or that provide protection for the system components"?Why Not the Other Options?Relevant CMMC 2.0 References:Final Justification:SinceCMMC applies to nonfederal systems that process CUI or protect those systems, the correct answer isD. Nonfederal systems that process, store, or transmit CUI, or that provide protection for the system components.

Understanding Access Control in CMMCAccess control refers to the process ofgranting or denyingspecific requests to:

Obtain and use information

Access information processing services

Enter specific physical locations

TheAccess Control (AC) domain in CMMCis based onNIST SP 800-171 (3.1 Access Control family)and includes requirements to:

✅Implement policies for granting and revoking access.

✅Restrict access to authorized personnel only.

✅Protect physical and digital assets from unauthorized access.

Since the questionbroadly asks about the process of granting or denying access to information, services, and physical locations, the correct answer isA. Access Control.

B. Physical access control❌Incorrect.Physical access controlis asubsetof access control that only applies tophysical locations(e.g., keycards, security guards, biometrics). The question includesinformation and services, makinggeneral access controlthe correct choice.

C. Mandatory access control (MAC)❌Incorrect.MAC is a specific type of access controlwhere access is strictly enforced based onsecurity classifications(e.g., Top Secret, Secret, Confidential). The questiondoes not specify MAC, so this is incorrect.

D. Discretionary access control (DAC)❌Incorrect.DAC is another specific type of access control, whereownersof data decide who can access it. The question asksgenerallyabout granting/denying access, makingaccess control (A)the best answer.

Why the Other Answers Are Incorrect

CMMC 2.0 Model - AC.L2-3.1.1 to AC.L2-3.1.22– Covers access control requirements, includingcontrolling access to information, services, and physical spaces.

NIST SP 800-171 (3.1 - Access Control Family)– Defines the general principles of access control.

CMMC Official ReferencesThus,option A (Access Control) is the correct answer, as it best aligns withCMMC access control requirements.

Theprimary goal of CMMC assessment proceduresis to determine whether anOrganization Seeking Certification (OSC)complies with the cybersecurity controls required for its certification level. Themost common purpose of assessment procedures is to obtain evidencethat verifies an organization has properly implemented security practices.

CMMC Assessments Require Evidence Collection

TheCMMC Assessment Process (CAP) Guideoutlines that assessors must use three methods to verify compliance:

Examine– Reviewing documentation, policies, and system configurations.

Interview– Speaking with personnel to confirm understanding and execution.

Test– Validating controls through operational or technical tests.

All these methods involve obtaining evidenceto support whether a security requirement has been met.

Alignment with NIST SP 800-171A

CMMC Level 2 assessments follow NIST SP 800-171A, which is designed for evidence-based verification.

Assessors rely on documented artifacts, system logs, configurations, and personnel testimony as evidence of compliance.

B. Define level of effort (Incorrect)

Thelevel of effortrefers to the time and resources needed for an assessment, but this is aplanningactivity, not the primary goal of an assessment.

C. Determine information flow (Incorrect)

While understandinginformation flowis important for security controls likedata protection and access control, themain purpose of an assessment is to gather evidence—not to determine information flow itself.

D. Determine value of hardware and software (Incorrect)

Asset valuation may be part of an organization’s risk management process, but CMMC assessmentsdo not focus on determining hardware or software value.

The correct answer isA. Obtain evidence, as theCMMC assessment process is evidence-drivento verify compliance with security controls.

Under the Cybersecurity Maturity Model Certification (CMMC) 2.0, a Plan of Action (POA) is a critical document that outlines the specific actions a contractor needs to take to remediate cybersecurity deficiencies. While POAs serve as a roadmap for achieving compliance with required controls, the inclusion of certain elements is standardized.

Key Elements of a Plan of Action (POA)

According to the CMMC guidelines and NIST SP 800-171, which underpins many CMMC requirements, a POA typically includes:

Completion Dates: Identifies target deadlines for resolving deficiencies.

Milestones to Measure Progress: Includes interim steps or markers to ensure progress is monitored over time.

Ownership or Accountability: Clearly assigns responsibility for each action item to specific personnel or teams.

What is Generally NOT Part of a POA?

Budget requirements to implement the plan's remediation actions (Option D) are generally not included in a POA. While budgeting is critical for ensuring the plan's success, it is considered a part of the broaderproject management or resource planning process, not the POA itself. This distinction is intentional to keep the POA focused on actionable items rather than resource allocation.

Supporting Reference

NIST SP 800-171A, Appendix D: Provides an overview of POA components, emphasizing the prioritization of corrective actions, responsibility, and measurable outcomes.

CMMC Level 2 Practices (Aligned with NIST SP 800-171): Specifically, the focus is on actions, timelines, and accountability rather than financial planning.

By excluding budget details, the POA remains a tactical document that supports immediate action and compliance tracking, separate from financial considerations.

ACertified CMMC Professional (CCP)advising anOrganization Seeking Certification (OSC)must ensure thatFederal Contract Information (FCI)andControlled Unclassified Information (CUI)are properly documented within required security documents.

Step-by-Step Breakdown:✅1. System Security Plan (SSP)

CMMC Level 2requires anSSPto documenthow CUI is protected, including:

Security controlsimplemented

Asset categorization(CUI Assets, Security Protection Assets, etc.)

Policies and proceduresfor handling CUI

✅2. Asset Inventory

Anasset inventorylistsall relevant IT systems, applications, and hardwarethat store, process, or transmitCUI or FCI.

TheCMMC Scoping Guiderequires OSCs to identifyCUI-relevant assetsas part of their compliance.

✅3. Network Diagram

Anetwork diagramvisually representshow data flows across systems, showing:

WhereCUI is transmitted and stored

Security boundaries protectingCUI Assets

Connectivity betweenCUI Assets and Security Protection Assets

✅4. Why the Other Answer Choices Are Incorrect:

(B) Within the hardware inventory, data flow diagram, and in the network diagram❌

While adata flow diagramis useful,hardware inventory alone is insufficientto document CUI.

(C) Within the asset inventory, in the proposal response, and in the network diagram❌

Aproposal responseis not a required document for CMMC assessments.

(D) In the network diagram, in the SSP, within the base inventory, and in the proposal response❌

Base inventoryis not a specific CMMC documentation requirement.

TheCMMC Assessment Guideconfirms that FCI and CUI must be documented in:

The SSP

The asset inventory

The network diagram

Final Validation from CMMC Documentation:Thus, the correct answer is:

✅A. "In the SSP, within the asset inventory, and in the network diagram."

The CAP specifies that the C3PAO is responsible for assigning the Lead Assessor to an OSC’s assessment. While the OSC contracts with the C3PAO, the authority to appoint the Lead Assessor resides solely with the C3PAO.

Supporting Extracts from Official Content:

CAP v2.0, Assessment Team Composition (§2.10): “The C3PAO shall designate a qualified Lead Assessor to lead the assessment.”

Why Option B is Correct:

Only the C3PAO has the authority to select and assign the Lead Assessor.

The OSC may influence scheduling and planning but cannot appoint assessors.

Options A, C, and D are inconsistent with CAP requirements.

References (Official CMMC v2.0 Content):

CMMC Assessment Process (CAP) v2.0, Assessment Team Roles and Responsibilities (§2.10).

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).

===========

Key References for a Lead Assessor in a CMMC AssessmentALead Assessorconducting aCMMC assessmentmust rely onofficial CMMC guidance documentsto evaluate whether anOrganization Seeking Certification (OSC)meets the required cybersecurity practices.

TheCMMC Assessment Guideprovidesdetailed descriptionsof eachpractice and processat the specificCMMC level being assessed.

It defines:✔Theassessment objectivesfor each practice.✔Therequired evidencefor compliance.✔Thescoring criteriato determine if a practice isMET or NOT MET.

Most Relevant Reference: CMMC Assessment Guide

A. DoD adequate security checklist for covered defense information → Incorrect

TheDoD adequate security checklistis related toDFARS 252.204-7012 compliance, butCMMC assessmentsfollow theCMMC Assessment Guide.

B. CMMC Model Overview as it provides assessment methods and objects → Incorrect

TheCMMC Model Overviewprovideshigh-level guidance, butdoes not contain specific assessment criteria.

C. Safeguarding requirements from FAR Clause 52.204-21 for a Level 2 Assessment → Incorrect

FAR 52.204-21is relevant toCMMC Level 1 (FCI protection), butCMMC Level 2 follows NIST SP 800-171and requiresCMMC Assessment Guidesfor validation.

D. Published CMMC Assessment Guide practice descriptions for the desired certification level → Correct

TheCMMC Assessment Guideis theofficial documentused to determine if anOSC meets the required security practices for certification.

Why is the Correct Answer "D. Published CMMC Assessment Guide practice descriptions for the desired certification level"?

CMMC Assessment Process (CAP) Document

Specifies thatLead Assessors must use the CMMC Assessment Guidefor official scoring.

CMMC Assessment Guide for Level 1 & Level 2

Providesdetailed descriptions, assessment methods, and scoring criteriafor each practice.

CMMC-AB Guidance for Certified Third-Party Assessment Organizations (C3PAOs)

Confirms thatCMMC assessments must follow the Assessment Guide, not general DoD security policies.

CMMC 2.0 References Supporting This Answer:

Final Answer:✔D. Published CMMC Assessment Guide practice descriptions for the desired certification level.

Scoping Requirements in CMMC AssessmentsTheCMMC 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.)

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.

Why the Other Answers Are Incorrect

CMMC 2.0 Scoping Guide – Level 1 & Level 2

CMMC Assessment Process (CAP) Document

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

Step 1: Define CUI (Controlled Unclassified Information)CUI is information thatrequires safeguarding or dissemination controlspursuant to and consistent with applicable law, regulations, and government-wide policies, butis not classifiedunder Executive Order 13526 or the Atomic Energy Act.

✅Step 2: Authority over CUI — NARA’s RoleNARA – National Archives and Records Administration, specifically theInformation Security Oversight Office (ISOO), is thegovernment-wide executive agentresponsible for implementing the CUI program.

Source:

32 CFR Part 2002 – Controlled Unclassified Information (CUI)

Executive Order 13556 – Controlled Unclassified Information

CUI Registry – https://www.archives.gov/cui

NARA:

Maintains theCUI Registry,

Issuesmarking and handling guidance,

DefinesCUI categoriesand their authority under law or regulation,

Trains and informs Federal agencies and contractors on CUI policy.

B. NIST✘ NIST (National Institute of Standards and Technology) developstechnical standards(e.g., SP 800-171), but it doesnot define or mark CUI. It helps secure CUI once it’s identified.

C. CMMC-AB (now Cyber AB)✘ The Cyber AB is theCMMC ecosystem’s accreditation body, not a government agency, and hasno authority over CUI classification or marking.

D. Department of Homeland Security (DHS)✘ While DHS mayhandle and protect CUI internally, it is not the executive agent for the CUI program.

❌Why the Other Options Are Incorrect

NARAis theofficial U.S. government authorityresponsible for defining, categorizing, and marking CUI via theCUI Registryand associated policies underExecutive Order 13556.

Understanding the Principle of Least Functionality in the CM DomainTheConfiguration Management (CM) domainin CMMC 2.0 focuses on maintaining the security and integrity of an organization’s systems through controlled configurations and restrictions on system capabilities.

The principle ofLeast Functionalityrefers to limiting a system’s features, services, and applications to only those necessary for its intended purpose. This principle reduces the attack surface by minimizing unnecessary components that could be exploited by attackers.

CMMC Practice CM.L2-3.4.6 (Use Least Functionality)explicitly states:"Employ the principle of least functionality by configuring organizational systems to provide only essential capabilities."

Thegoalis to prevent unauthorized or unnecessary applications, services, and ports from running on the system.

Examples of Implementation:

Disabling unnecessary services, such as remote desktop access if not required.

Restricting software installation to approved applications.

Blocking unused network ports and protocols.

A. Least Privilege

This principle (associated with Access Control) ensures that users and processes have only the minimum level of access necessary to perform their jobs.

It is relevant to CMMC PracticeAC.L2-3.1.5 (Least Privilege)but does not define system capabilities.

B. Essential Concern

There is no officially recognized cybersecurity principle called "Essential Concern" in CMMC, NIST, or related frameworks.

D. Separation of Duties

This principle (covered under CMMCAC.L2-3.1.4) ensures that no single individual has unchecked control over critical functions, reducing the risk of fraud or abuse.

While important for security, it does not define essential system capabilities.

CMMC 2.0 Level 2 Assessment Guide – Configuration Management (CM) Domain

CM.L2-3.4.6 mandatesleast functionalityto enhance security by removing unnecessary features.

NIST SP 800-171 (which CMMC is based on) – Requirement 3.4.6

States:"Limit system functionality to only the essential capabilities required for organizational missions or business functions."

NIST SP 800-53 – Control CM-7 (Least Functionality)

Provides detailed recommendations on configuring systems to operate with only necessary features.

Justification for the Correct Answer: Least Functionality (C)Why Other Options Are IncorrectOfficial CMMC and NIST ReferencesConclusionTheprinciple of Least Functionality (C)is the basis for defining essential system capabilities in theConfiguration Management (CM) domainof CMMC 2.0. By applying this principle, organizations reduce security risks by ensuring that only the necessary functions, services, and applications are enabled.

Understanding the CMMC Readiness Review ProcessALead Assessorconducting aCMMC Readiness Reviewevaluates whether anOrganization Seeking Certification (OSC)is prepared for a formal assessment.

After recording theassessment risk statusandoverall assessment feasibility, theminimum remaining criteriato be verified include:

Logistics Planning– Ensuring that the assessment timeline, locations, and necessary resources are in place.

Assessment Team Preparation– Confirming that assessors and required personnel are available and briefed.

Evidence Readiness– Ensuring the OSC has gathered all required artifacts and documentation for review.

Breakdown of Answer ChoicesOption

Description

Correct?

A. Determine the practice pass/fail results.

Happensduringthe formal assessment, not the readiness review.

❌Incorrect

B. Determine the preliminary recommended findings.

Findings are only madeafterthe full assessment.

❌Incorrect

C. Determine the initial model practice ratings and record them.

Ratings are assigned during theassessment, not readiness review.

❌Incorrect

D. Determine the logistics, Assessment Team, and the evidence readiness.

✅Essential readiness criteria that must be confirmedbeforeassessment starts.

✅Correct

TheCMMC Assessment Process Guide (CAP)states that readiness review ensureslogistics, assessment team availability, and evidence readinessare verified.

Official Reference from CMMC 2.0 DocumentationFinal Verification and ConclusionThe correct answer isD. Determine the logistics, Assessment Team, and the evidence readiness.This aligns withCMMC readiness review requirements.

TheCMMC Scoping Guide for Level 2outlines thatCUI assetsinclude systems, applications, and services thatstore, process, or transmitControlled Unclassified Information (CUI). These are the three core functions that defineCUI handlingwithin anOrganization Seeking Certification (OSC).

Step-by-Step Breakdown:✅1. CUI Assets Defined in CMMC

Stored:CUI is saved on hard drives, cloud storage, or databases.

Processed:CUI is actively used, modified, or analyzed by applications and users.

Transmitted:CUI is sent between systems via email, file transfers, or network communication.

✅2. Why the Other Answer Choices Are Incorrect:

(A) Received and transferred❌

Whilereceiving and transferring CUIis part of handling CUI, it does not fully cover all CUI asset responsibilities.

(C) Entered, edited, manipulated, printed, and viewed❌

These arespecific actionswithinprocessingbut do not coverstorage or transmission, which are also required for CMMC scoping.

(D) Located on electronic media, on system component memory, and on paper❌

While CUI can exist inelectronic and physical forms, CMMC scoping focuses onhow CUI is actively managed (stored, processed, transmitted)rather than where it physically resides.

TheCMMC Level 2 Scoping Guideconfirms thatCUI Assets are categorized based on their role in storing, processing, or transmitting CUI.

NIST SP 800-171also defines these three functions as key components of CUI protection.

Final Validation from CMMC Documentation:

The CMMC Assessment Process uses three methods: Examine, Interview, and Test. The method that involves analyzing artifacts (documents, system configurations, records, logs, etc.) is Examine.

Supporting Extracts from Official Content:

CMMC Assessment Guide: “Examine consists of reviewing, inspecting, or analyzing assessment objects such as documents, system configurations, or other artifacts to evaluate compliance.”

Why Option B is Correct:

Examine = analyzing artifacts.

Interview = discussions with personnel.

Test = executing technical checks.

Behavior is not an assessment method.

References (Official CMMC v2.0 Content):

CMMC Assessment Guide, Levels 1 and 2 — Assessment Methods (Examine, Interview, Test).

===========

Understanding the Best Source for CMMC Practice DescriptionsTheCMMC Assessment Guide (Levels 1 and 2)is theprimaryandmost authoritativedocument for detailed descriptions of each practice and process within the variousCMMC domains.

Step-by-Step Breakdown:✅1. What is the CMMC Assessment Guide?

TheCMMC Assessment Guideprovides detailed explanations of:

EachCMMC practicewithin its respectivedomain.

Theassessment objectivesfor verifying implementation.

Examples ofevidence requiredto demonstrate compliance.

CMMC 2.0 includes two levels:

Level 1: 17 basic cybersecurity practices.

Level 2: 110 practices aligned withNIST SP 800-171.

TheAssessment Guidedefines howassessorsevaluate compliance.

✅2. Why the Other Answer Choices Are Incorrect:

(A) CMMC Glossary❌

TheGlossaryprovidesdefinitions of termsused in CMMC but does not describe specific practices in detail.

(B) CMMC Appendices❌

Appendicesinclude supplementary information likereferences and scoping guidance, but they do not provide full descriptions of practices.

(C) CMMC Assessment Process❌

TheAssessment Process Guideexplainshowassessments are conducted, but it doesnot describe each practicein detail.

Final Validation from CMMC Documentation:TheCMMC Assessment Guide (Levels 1 and 2)is theofficialsource for descriptions of eachCMMC practice and process, making it thebest referencefor understanding compliance requirements.

TheU.S. Department of Defense (DoD)determines the requiredCMMC Levelbased on thesensitivity of the information involved in a contract.

The required CMMC Level isspecified in Requests for Information (RFIs) and Requests for Proposals (RFPs).

Best Practices for Handling Sensitive Assessment InformationCMMC assessments involve handlingsensitive and potentially CUI-related documents. Assessors must follow strictsecurity policiesto avoid unauthorized access, data leaks, or non-compliance withCMMC 2.0 and NIST SP 800-171 requirements.

Why Logging into the Client VPN on the Client Laptop is the Best Approach:

Ensures Data Protection:The client laptop is likely configured to meet security controls required for handling assessment-related materials.

Prevents Data Spillage:Keeping all assessment-related activities within the client’s secured environment reduces the risk ofdata leakage or unauthorized storage.

Maintains Compliance with CMMC/NIST Guidelines:Using aproperly configured client laptop and secured connectionensures compliance withNIST SP 800-171 controls on secure remote access(Requirement3.13.12).

A. "Log into the secure cloud storage service to save copies of the documents on both the work and client laptops."

Incorrect→Sensitive data should not be duplicated across multiple systems, especially a non-client-approved laptop. Storing it on an unauthorized systemviolates data handling best practices.

C. "Log into the client VPN from the assessor's laptop and retrieve the documents from the secure cloud storage service."

Incorrect→ Theassessor’s laptop may not be authorizedorsecuredto handle client data. CMMC guidelines emphasizeusing approved, secured systemsfor assessment-related information.

D. "Use their home office workstation to retrieve the documents from the secure cloud storage service and save them to a USB stick."

Incorrect→

Transferring sensitive documents via USBintroduces security risks, including unauthorized data storage and potential malware contamination.

Home office workstationsare unlikely to be authorized for handling CMMC-sensitive data.

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.

Step 1: Define Roles – CCP and CCASource: 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 RequirementsCAP 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.

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.

❌Why the Other Options Are Incorrect

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.

In the context of a Cybersecurity Maturity Model Certification (CMMC) Level 2 Assessment, specific practices must be evaluated to ensure compliance with established security requirements. One such practice is AC.L2-3.1.19, which mandates the encryption of Controlled Unclassified Information (CUI) on mobile devices and mobile computing platforms.

Step-by-Step Explanation:

Requirement Overview:

Practice AC.L2-3.1.19 requires organizations to "Encrypt CUI on mobile devices and mobile computing platforms." This ensures that any CUI accessed, stored, or transmitted via mobile devices is protected through encryption, mitigating risks associated with data breaches or unauthorized access.

Assessment of Provided Evidence:

During the assessment, the Organization Seeking Certification (OSC) provided an inventory list encompassing servers, workstations, and network devices. Notably, this list lacks any mention of mobile devices or mobile computing platforms.

Implications of the Omission:

The absence of mobile devices in the inventory suggests that the OSC may not have accounted for all assets that process, store, or transmit CUI. Without a comprehensive inventory that includes mobile devices, it's challenging to verify whether the OSC has implemented the necessary encryption measures for CUI on these platforms.

Assessment Determination:

Given the incomplete inventory, the evidence is insufficient to make a definitive scoring determination for practice AC.L2-3.1.19. The OSC must provide a detailed inventory that encompasses all relevant devices, including mobile devices and computing platforms, to demonstrate compliance with the encryption requirements for CUI.

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.

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.

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.

Analysis of the Given Options:Official References Supporting the Correct Answer:Conclusion:TheAU domain applies only to CMMC 2.0 Level 2, making the correct answer:

✅B. Level 2.

Step 1: Understand the “CA” Domain – Security AssessmentTheCA (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.

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

✅Step 2: Review CMMC Levels

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.

❌Why the Other Options Are Incorrect

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

Who Do DoD Contractors Report CUI Breaches To?PerDFARS 252.204-7012, all DoD contractors handlingControlled Unclassified Information (CUI)must report cyber incidents to theDoD Cyber Crime Center (DC3).

Key Reporting Requirements✅Cyber incidents involving CUI must be reported toDC3 within 72 hours.

✅Reports must be submitted via theDoD's Cyber Incident Reporting Portal.

✅Contractors mustpreserve forensic evidencefor potential investigation.

The FBI (Option A) handles criminal investigations, but DoD contractorsmust report cyber incidents to DC3.

NARA (Option B) oversees the CUI Registry, butis not responsible for breach reporting.

The Under Secretary of Defense for Intelligence and Security (Option D) is responsible for intelligence operations, not incident reporting.

Why "DoD Cyber Crime Center" is Correct?Breakdown of Answer ChoicesOption

Description

Correct?

A. FBI

❌Incorrect–The FBI handlescriminal cases, not CUI breach reporting.

B. NARA

❌Incorrect–NARA manages theCUI Registry, butdoes not handle breaches.

C. DoD Cyber Crime Center

✅Correct – Per DFARS 252.204-7012, cyber incidents involving CUI must be reported to DC3.

D. Under Secretary of Defense for Intelligence and Security

❌Incorrect–This office doesnothandle cyber incident reports.

DFARS 252.204-7012– Requires DoD contractors to report CUI-related cyber incidents toDC3.

DoD Cyber Crime Center (DC3) Website– The official platform forcyber incident reporting.

Official References from CMMC 2.0 and DFARS DocumentationFinal Verification and ConclusionThe correct answer isC. DoD Cyber Crime Center, as perDFARS 252.204-7012, which mandates that all DoD contractors reportCUI breaches to DC3 within 72 hours.

The prime contractor (contractor organization)is responsible for ensuring thatits subcontractorshave the requiredCMMC certification levelbefore engaging them inDoD contracts that involve FCI or CUI.

This requirement is enforced throughflow-down clausesinDFARS 252.204-7021, which mandates that subcontractors handlingCUImeet the necessaryCMMC Level 2 or Level 3 requirements.

Who Has the Final Authority Over Assessment Results?During aCMMC Level 2 assessment, theCertified Third-Party Assessment Organization (C3PAO)is responsible for conducting and finalizing the assessment results.

Key Responsibilities of a C3PAO✅Leads the assessmentand ensures it follows the CMMC Assessment Process (CAP).

✅Validates compliancewith CMMC Level 2 requirements based onNIST SP 800-171controls.

✅Finalizes the assessment resultsand submits them to theCMMC-ABand theDoD.

✅Handles disagreementsfrom the OSC but hasfinal decision-making authorityon results.

The C3PAO has final authority over the assessment resultsafter considering all evidence and findings.

TheCMMC-AB (Option B) does not finalize assessments—it accredits C3PAOs and manages the certification ecosystem.

TheAssessment Team (Option C) supports the C3PAO but does not have final decision authority.

TheAssessment Sponsor (Option D) is a representative from the OSC and does not control the results.

Why "C3PAO" is Correct?Breakdown of Answer ChoicesOption

Description

Correct?

A. C3PAO

✅Correct – C3PAOs finalize and submit assessment results.

B. CMMC-AB

❌Incorrect–The CMMC-AB accredits C3PAOs but doesnot finalize results.

C. Assessment Team

❌Incorrect–They conduct the assessment, but the C3PAO makes final decisions.

D. Assessment Sponsor

❌Incorrect–This is arepresentative of the OSC, not the assessment authority.

CMMC Assessment Process Guide (CAP)– DefinesC3PAO authorityover final assessment results.

Official References from CMMC 2.0 DocumentationFinal Verification and ConclusionThe correct answer isA. C3PAO, as theC3PAO has final decision-making authority over CMMC assessment results.

UnderCMMC 2.0 Level 2, which aligns with the requirements ofNIST SP 800-171, maintaining robust control overnonlocal maintenance sessionsis critical. While multifactor authentication (MFA) is a required safeguard for secure access, additional measures must be implemented to fully meet the maintenance requirements as outlined inControl 3.3.5:

Key Requirements for Nonlocal Maintenance:

Termination of Nonlocal Maintenance Sessions:

To reduce the attack surface and prevent unauthorized access, nonlocal maintenance connectionsmust be terminated immediately after the maintenance activity is completed. This is a direct requirement to mitigate risks associated with lingering remote sessions that could be exploited by threat actors.

Supporting Reference:NIST SP 800-171, Control 3.3.5 states: "Ensure that remote maintenance is conducted in a controlled manner and disable connections immediately after use."

Multifactor Authentication (MFA):

OSCs are required to implement MFA for nonlocal remote maintenance sessions. MFA must includeat least two factors(e.g., something you know, something you have, or something you are).

While the OSC’s use of MFA satisfies part of the requirement, it does not complete the control unless proper termination procedures are in place.

Policy and Procedure Adherence:

The OSC must also document amaintenance policyand ensure it reflects the need for terminating connections post-maintenance. The policy should outline roles, responsibilities, and steps for ensuring secure nonlocal maintenance practices.

Incorrect Options:

B. Unlimited connections:Allowing unrestricted nonlocal maintenance sessions is a significant security risk and violates the principle of least privilege.

C. Removing restrictions:Removing restrictions for convenience directly undermines compliance and security.

D. Multifactor authentication details:While MFA is necessary, the question states the OSC already uses it. Termination of sessions is the missing requirement.

Conclusion:

The requirement toterminate nonlocal maintenance sessions after maintenance is complete(Option A) is critical for compliance withCMMC 2.0 Level 2andNIST SP 800-171, Control 3.3.5. This ensures that nonlocal maintenance activities are secured against unauthorized access and potential vulnerabilities.

Understanding the Phases of the CMMC Assessment ProcessTheCMMC Assessment Process (CAP)consists of multiple phases, with each phase focusing on a different aspect of the assessment.Developing the assessment planoccurs inPhase 1, which is thePre-Assessment Phase.

Engagement Agreement: TheOSC (Organization Seeking Certification)and theCertified Third-Party Assessment Organization (C3PAO)formalize the assessment contract.

Developing the Assessment Plan: TheLead Assessorand the assessment team create anAssessment Plan, which outlines:

Scope of the assessment

CMMC Level requirements

Assessment methodology

Timeline and logistics

Initial Data Collection: Review of system documentation, policies, and relevant security controls.

Key Activities in Phase 1 – Pre-Assessment Phase

A. Phase 1 → Correct

Phase 1 is where the assessment plan is developed.

It ensuresclarity on scope, methodology, and logistics before the assessment begins.

B. Phase 2 → Incorrect

Phase 2 is theAssessment Conduct Phase, where assessorsexecutethe plan by examining evidence and interviewing personnel.

C. Phase 3 → Incorrect

Phase 3 is thePost-Assessment Phase, which involvesfinalizing findings and submitting reports, not developing the plan.

D. Phase (Incomplete Answer) → Incorrect

The question requires a specific phase, and the correct one isPhase 1.

Why is the Correct Answer "Phase 1" (A)?

CMMC Assessment Process (CAP) Document

DefinesPhase 1as the stage where the assessment plan is developed.

CMMC Accreditation Body (CMMC-AB) Guidelines

Specifies thatplanning and pre-assessment activities occur in Phase 1.

CMMC 2.0 Certification Workflow

Outlines the assessment planning process as part of theinitial engagementbetween theC3PAO and the OSC.

CMMC 2.0 References Supporting this Answer:

Understanding CMMC Assessment ProceduresACMMC 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.

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.

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.

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.

Why the Correct Answer is "C"?Why Not the Other Options?Relevant CMMC 2.0 References: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.

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.

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.

Step-by-Step Breakdown:Final Validation from CMMC Documentation:Thus, the correct answer is:

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

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.

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.

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)

Understanding Scoping in CMMC Level 1 Self-AssessmentsWhy Option A (In scope) is CorrectOfficial CMMC Documentation ReferencesFinal VerificationSince theESP employee has access to FCI, they are consideredin scopefor the CMMC Level 1 self-assessment, makingOption A the correct answer.

Understanding "Adequate Evidence" in the CMMC Assessment ProcessIn aCMMC assessment,adequate evidencerefers to the proof required to demonstrate that a specific cybersecurity practice has been implemented correctly. Evidence can come from:

Artifacts(e.g., security policies, system configurations, logs).

Interview responses(e.g., verbal confirmation from personnel about their responsibilities).

Demonstrations(e.g., showing how a security control is implemented in real time).

Testing(e.g., verifying technical security mechanisms such as multi-factor authentication).

Thegoalof evidence collection is to determinewhether a CMMC practice is met—not just whether the organization operates within the assessment scope.

A. Verify, based on an assessment and organizational scope → Incorrect

Theassessment scopedefineswhat is evaluated, but adequacy of evidence is based oncompliance with specific CMMC practices.

B. Verify, based on an assessment and organizational practice → Incorrect

CMMC assessments focus on cybersecurity practices defined in the CMMC framework, not just general organizational practices.

C. Determine if a given artifact, interview response, demonstration, or test meets the CMMC scope → Incorrect

Thescopedefines the assessment boundaries, but theassessment team's job is to confirm whether CMMC practices are satisfied.

D. Determine if a given artifact, interview response, demonstration, or test meets the CMMC practice → Correct

TheCMMC assessment process focuses on ensuring that required practices are implemented, making this the correct answer.

Why is the Correct Answer "Determine if a given artifact, interview response, demonstration, or test meets the CMMC practice" (D)?

CMMC Assessment Process (CAP) Document

Defines "adequate evidence" asproof that a CMMC practice has been correctly implemented.

CMMC 2.0 Assessment Criteria

Specifies that evidence must beevaluated against specific cybersecurity practices.

NIST SP 800-171A (Assessment Procedures for NIST SP 800-171)

Provides guidance on evaluating artifacts, interviews, demonstrations, and testing to confirm compliance with required practices.

CMMC 2.0 References Supporting this Answer:

Final Answer:✔D. Determine if a given artifact, interview response, demonstration, or test meets the CMMC practice.

Understanding the False Claims Act (FCA) and Whistleblower ProtectionsTheFalse Claims Act (FCA)(31 U.S.C. §§ 3729–3733) is aU.S. federal lawthat allowswhistleblowers (also known as "relators")to sue on behalf of the federal government if they believe a company issubmitting fraudulent claimsfor government funds.

The FCA includes a"qui tam" provision, which:

✅Allows private individuals to file lawsuits on behalf of the U.S. government.

✅Provides financial rewards to whistleblowersif the lawsuit results in recovered funds.

✅Protects whistleblowers from employer retaliation.

In the context ofCMMC and cybersecurity compliance, theFCA has been used to hold companies accountableformisrepresenting their cybersecurity compliancewhen working with federal contracts.

For example:

If a companyfalsely claimscompliance withCMMC, NIST SP 800-171, or DFARS 252.204-7012butfails to meet security requirements, it could beliable under the FCA.

TheDepartment of Justice (DOJ)has pursued cases under theCyber-Fraud Initiative, using theFCA against defense contractorsfor cybersecurity noncompliance.

Thus, the correct answer isC. False Claims Actbecause it specifically allows whistleblowers tosue on behalf of the federal government.

A. NIST SP 800-53❌Incorrect.NIST SP 800-53provides security controls for federal agencies butdoes notcontain whistleblower provisions.

B. NIST SP 800-171❌Incorrect.NIST SP 800-171outlines security requirements for protectingCUI, but itdoes not have legal mechanismsfor whistleblower lawsuits.

D. Code of Professional Conduct❌Incorrect. TheCMMC Code of Professional Conductapplies toC3PAOs and assessorsbut doesnot provide a legal basis for whistleblower lawsuits.

Why the Other Answers Are Incorrect

False Claims Act (31 U.S.C. §§ 3729–3733)– Establishes whistleblower protections and qui tam lawsuits.

DOJ Cyber-Fraud Initiative– Uses the FCA to enforce cybersecurity compliance in government contracts.

DFARS 252.204-7012 & CMMC– Require accurate reporting of cybersecurity compliance, which can lead to FCA violations if misrepresented.

CMMC Official ReferencesThus,option C (False Claims Act) is the correct answeras per official legal guidance.

Understanding CMMC 2.0 Levels and Their DescriptionsTheCybersecurity Maturity Model Certification (CMMC) 2.0consists ofthree levels, each representing increasing cybersecurity maturity:

Level 1 – Foundational

Focuses onbasic cyber hygiene

Implements17 practicesaligned withFAR 52.204-21

Primarily protectsFederal Contract Information (FCI)

Level 2 – Advanced(Correct Answer)

Focuses onprotecting Controlled Unclassified Information (CUI)

Implements110 practicesaligned withNIST SP 800-171

Requirestriennial third-party assessments for critical programs

Level 3 – Expert

Focuses onadvanced cybersecurityagainstAPT (Advanced Persistent Threats)

ImplementsNIST SP 800-171 and additional NIST SP 800-172 controls

Requirestriennial government-led assessments

TheCMMC 2.0 framework explicitly describes Level 2 as "Advanced."

Italigns with NIST SP 800-171to ensure robustCUI protection.

A. Expert (Incorrect)– This describesLevel 3, not Level 2.

C. Optimizing (Incorrect)– Not a defined CMMC level description.

D. Continuously Improved (Incorrect)– CMMC does not use this terminology.

The correct answer isB. Advanced, which accurately describesCMMC Level 2.

Understanding Asset Types in CMMC 2.0In CMMC 2.0, assets are categorized based on their role in handlingFederal Contract Information (FCI)orControlled Unclassified Information (CUI). TheCybersecurity Maturity Model Certification (CMMC) Scoping GuidanceforLevel 1andLevel 2provides asset definitions to help organizations identify what needs protection.

According toCMMC Scoping Guidance, there are five primary asset types:

Security Protection Assets (ESP - External Service Providers & Security Systems)

People (Personnel who interact with FCI/CUI)

Facilities (Physical locations housing FCI/CUI)

Technology (Hardware, software, and networks that store, process, or transmit FCI/CUI)

CUI Assets (For Level 2 assessments, assets specifically storing CUI)

Why "Technology" Is the Correct AnswerThe IT manager is evaluatingservers, laptops, databases, and applications—all of which aretechnology assetsused to store, process, or transmit FCI.

According toCMMC Scoping Guidance,Technology assetsinclude:

✅Endpoints(Laptops, Workstations, Mobile Devices)

✅Servers(On-premise or cloud-based)

✅Networking Devices(Routers, Firewalls, Switches)

✅Applications(Software, Cloud-based tools)

✅Databases(Storage of FCI or CUI)

Since the IT manager is focusing on these components, the correct asset category isTechnology (Option D).

A. ESP (Security Protection Assets)❌Incorrect. ESPs refer tosecurity-related assets(e.g., firewalls, monitoring tools, managed security services) thathelp protectFCI/CUI but do notstore, process, or transmitit directly.

B. People❌Incorrect. While employees play a role in handling FCI, the question focuses onhardware and software—which falls underTechnology, not People.

C. Facilities❌Incorrect. Facilities refer tophysical buildingsor secured areas where FCI/CUI is stored or processed. The question explicitly mentionsservers, laptops, and applications, which arenot physical facilities.

Why the Other Answers Are Incorrect

CMMC Level 1 Scoping Guide (CMMC-AB)– Defines asset categories, including Technology.

CMMC 2.0 Scoping Guidance for Assessors– Provides clarification on FCI assets.

CMMC Official ReferencesThus,option D (Technology) is the most correct choiceas per official CMMC 2.0 guidance.

Understanding CUI Protection ResponsibilitiesControlled Unclassified Information (CUI)is sensitive butnot classifiedinformation that requires protection underDoD Instruction 5200.48andDFARS 252.204-7012.

Theprimary responsibilityfor handling CUIis safeguardingit against unauthorized access, disclosure, or modification.

TheCUI Program (as per NARA and DoD)mandatessafeguarding measuresto protectCUI in both digital and physical forms.

CMMC 2.0 Level 2 (Advanced) practices align with NIST SP 800-171, which focuses on safeguarding CUIthrough access controls, encryption, and monitoring.

DFARS 252.204-7012requires DoD contractors to implementcybersecurity safeguardsto protect CUI.

A. Shielding (Incorrect)–Shieldingis not a cybersecurity term associated with CUI protection.

B. Governing (Incorrect)–Governing refers to policy-making, not direct protection.

C. Correcting (Incorrect)–Correcting implies remediation, but the primary responsibility is tosafeguardCUI proactively.

The correct answer isD. Safeguarding, asCUI protection focuses on implementing cybersecurity safeguards.

CMMC Level 2 Assessment MethodsCMMC Level 2 assessments focus on verifying compliance withNIST SP 800-171 requirements. TheCMMC Assessment Process (CAP) Documentspecifies that assessments at this level include:

Examination– Reviewing documents, mechanisms, and activities.

Interview– Speaking with personnel to validate implementation.

Testing– Observing and verifying security controls in action.

What Does "Examination" Include?According toCMMC Assessment Methodology, examination involves reviewing:

✅Documents(Policies, procedures, security plans)

✅Mechanisms(Security controls, authentication systems)

✅Activities(Backup operations, network monitoring, security training)

Sinceexamination includes reviewing documents, mechanisms, and activities, the correct answer isA.

B. Specific hardware, software, or firmware safeguards employed within a system.❌Incorrect. While safeguardsmaybe examined, CMMC does not limit examination to only hardware, software, or firmware. The definition is broader.

C. Policies, procedures, security plans, penetration tests, and security requirements.❌Incorrect. Whilesome of these itemsare examined, penetration tests arenot requiredin a CMMC Level 2 assessment.

D. Observation of system backup operations, exercising a contingency plan, and monitoring network traffic.❌Incorrect. These activities fall undertesting and interviews, not just examination.

Why the Other Answers Are Incorrect

CMMC Assessment Process (CAP) Document– Defines "examination" as reviewingdocuments, mechanisms, and activities.

CMMC Official ReferencesThus,option A (documents, mechanisms, or activities) is the correct answer, as it aligns with CMMC Level 2 assessment methodology.

nderstanding Objectivity in CMMC-AB ActivitiesObjectivityin 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.

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.

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

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.

CMMC 2.0 References Supporting This Answer:

CMMC Assessment Process (CAP) and CMMC Code of Professional Conduct emphasize that conflicts of interest (COI) must be disclosed and managed transparently. A Certified CMMC Professional (CCP) is required to:

Inform their organization,

Disclose the COI to the affected stakeholders, and

Take reasonable steps to minimize the impact.

What they must NOT do is conceal it from the Assessment Team Lead or others. Concealing a COI violates the CMMC Code of Professional Conduct and compromises the integrity of the assessment.

Reference Documents:

CMMC Assessment Process (CAP), v1.0

CMMC Code of Professional Conduct, CMMC-AB

Who Determines the Assessment Method for Each Practice?In aCMMC Level 2 Assessment, theLead Assessorhas thefinal authorityin determining theassessment methodused to evaluate each practice.

Key Responsibilities of the Lead Assessor✅Ensures theCMMC Assessment Process (CAP) Guideis followed.

✅Determines whether a practice is evaluated usinginterviews, demonstrations, or document reviews.

✅Directs theCertified CMMC Professionals (CCPs)and other assessors on themethodologyfor gathering evidence.

✅Works under aCertified Third-Party Assessment Organization (C3PAO)to ensure proper assessment execution.

CCP (Option A) assists in the assessment but does not make final decisionson methods.

OSC (Option B) is the Organization Seeking Certification, and they do not control assessment methodology.

Site Manager (Option C) may coordinate logistics but has no authority over assessment decisions.

Why "Lead Assessor" is Correct?Breakdown of Answer ChoicesOption

Description

Correct?

A. CCP

❌Incorrect–A CCPassistsbut doesnot determine assessment methods.

B. OSC

❌Incorrect–The OSC is beingassessedand does not decide assessment methods.

C. Site Manager

❌Incorrect–The Site Manager handles logistics butdoes not control assessment methods.

D. Lead Assessor

✅Correct – The Lead Assessor has the final say on the assessment method used.

CMMC Assessment Process Guide (CAP)– Defines theLead Assessor’s rolein determining assessment methods.

Official References from CMMC 2.0 DocumentationFinal Verification and ConclusionThe correct answer isD. Lead Assessor, as they havefinal decision-making authority over the assessment methodology.

1. Understanding CMMC 2.0 Levels and CUI Handling RequirementsUnderCMMC 2.0, contractors handlingControlled Unclassified Information (CUI)must meet aminimumcertification level to be eligible for contract awards involving CUI.

Level 1 (Foundational) – 17 Practices

Covers onlyFederal Contract Information (FCI)security.

Does NOT meet CUI handling requirements.

Level 2 (Advanced) – 110 Practices✅

REQUIRED for handling CUI.

Aligns withNIST SP 800-171, which establishes security controls for protecting CUI.

Contractorsmust achieve Level 2for contracts requiring CUI protection.

Level 3 (Expert) – 110+ Practices

Required for contracts involvinghigh-value CUIandcritical national security information.

Includesadditionalprotections fromNIST SP 800-172.

CMMC 2.0 Levels:

TheCMMC 2.0 Model Overviewclearly states that Level 2 is required for contractorshandling CUI.

DFARS 252.204-7012mandates that contractors protecting CUI must implementNIST SP 800-171, which is thefoundation of CMMC Level 2.

TheDoD’s CMMC Assessment Guidefor Level 2 specifies thatorganizations handling CUI must demonstrate full implementation of 110 practices from NIST SP 800-171to qualify for contract awards.

2. Official CMMC 2.0 References Confirming Level 2 for CUI

A. Level 1❌

Only covers FCI, not CUI.

Does notmeet DoD requirements for protectingCUI.

C. Level 3❌

While Level 3 offersadditional protectionsfor high-risk CUI, it isnot the minimumrequirement.

Level 2 is the minimumneeded to handle CUI.

D. Any level❌

OnlyLevel 2 and higherare eligible for contracts requiring CUI protection.

Level 1 doesnotmeet CUI security standards.

3. Why the Other Options Are Incorrect

Understanding the Assessment Results Package SubmissionAfter completing aCMMC Level 2 Assessment, theCertified Third-Party Assessment Organization (C3PAO)mustsubmit the final assessment results packageto theEnterprise Mission Assurance Support Service (eMASS)system.

TheFinal Reportis themandatory documentthatcontains all assessment details, findings, and scoring.

It serves as theofficial record of the assessmentanddetermines certification eligibility.

Key Required Document: Final Report

A. Final Report → Correct

TheFinal Report is requiredin the submission package todocument assessment results officially.

It includes asummary of findings, scoring, and recommendations.

B. Certification rating → Incorrect

The C3PAO does not issue certification ratings—theDoDandCMMC-ABdetermine certification status after reviewing the Final Report.

C. Summary-level findings → Incorrect

While the Final Reportincludessummary findings, astandalone summary-level findings document is not a required upload.

D. All Daily Checkpoint logs → Incorrect

Checkpoint logsare part of the internal assessment process butare not required in the final eMASS submission.

Why is the Correct Answer "Final Report" (A)?

CMMC Assessment Process (CAP) Document

Specifies that theFinal Report must be submitted to eMASSafter a Level 2 assessment.

CMMC-AB Guidelines for C3PAOs

States that theFinal Report is the key document used to determine certification status.

DFARS 252.204-7021 (CMMC Requirements Clause)

Requires the assessment results to be documented in an official report and submitted via eMASS.

CMMC 2.0 References Supporting This Answer:

Final Answer:✔A. Final Report

Understanding the Role of NIST SP 800-171 in CMMCNIST Special Publication (SP)800-171is the definitive standard for protectingControlled Unclassified Information (CUI)innonfederal systems and organizations. It provides security requirements that organizations handling CUImust implementto protect sensitive government information.

This document isthe foundationofCMMC 2.0 Level 2compliance, which aligns directly withNIST SP 800-171 Rev. 2requirements.

Breakdown of Answer ChoicesNIST SP

Title

Relevance to CMMC

NIST SP 800-37

Risk Management Framework (RMF)

Focuses on risk assessment for federal agencies, not directly applicable to CUI in nonfederal systems.

NIST SP 800-53

Security and Privacy Controls for Federal Systems

Provides security controls forfederalinformation systems, not specifically tailored tononfederalorganizations handling CUI.

NIST SP 800-88

Guidelines for Media Sanitization

Covers secure data destruction and disposal, not overall CUI protection.

NIST SP 800-171

Protecting Controlled Unclassified Information in Nonfederal Systems and Organizations

✅Correct Answer – Directly addresses CUI protection in contractor systems.

Key Requirements from NIST SP 800-171The document outlines110 security controlsgrouped into14 families, including:

Access Control (AC)– Restrict access to authorized users.

Audit and Accountability (AU)– Maintain system logs and monitor activity.

Incident Response (IR)– Establish an incident response plan.

System and Communications Protection (SC)– Encrypt CUI in transit and at rest.

These controls serve as thebaseline requirementsfor organizations seekingCMMC Level 2 certificationto work withCUI.

CMMC 2.0 Level 2alignsdirectlywith NIST SP800-171 Rev. 2.

DoD contractors that handle CUImustcomply withall 110 controlsfrom NIST SP800-171.

Official Reference from CMMC 2.0 DocumentationFinal Verification and ConclusionThe correct answer isD. NIST SP 800-171, as this documentexplicitly definesthe cybersecurity requirements for protectingCUI in nonfederal systems and organizations.

CMMC Level 1 practices correspond directly to the basic safeguarding requirements for Federal Contract Information (FCI), which are codified in FAR clause 48 CFR 52.204-21. These 15 requirements form the foundation for Level 1 compliance.

Supporting Extracts from Official Content:

48 CFR 52.204-21: “Contractors shall apply the following 15 basic safeguarding requirements to protect Federal Contract Information (FCI).”

CMMC Model v2.0 Overview: “Level 1 corresponds to the 15 basic safeguarding requirements in FAR 52.204-21.”

Why Option C is Correct:

FAR 52.204-21 is the source for Level 1 practices.

NIST SP 800-171 applies to CUI and Level 2, not Level 1.

NIST SP 800-171b is the precursor to NIST SP 800-172 (used for Level 3).

DFARS 252.204-7012 covers CUI safeguarding and incident reporting, not Level 1 FCI requirements.

References (Official CMMC v2.0 Content):

FAR 48 CFR 52.204-21, Basic Safeguarding of Covered Contractor Information Systems.

CMMC Model v2.0, Level 1 Overview.

Understanding the Official CUI RegistryTheControlled 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.

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.

Why "Official CUI Registry" is Correct?Breakdown of Answer ChoicesOption

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.

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.

Official References from CMMC 2.0 and Federal DocumentationFinal Verification and ConclusionThe correct answer isB. Official CUI Registry, as it is theonly official source listing all federal agencies' CUI indices and categories.

A Restricted Information System (IS) is defined as an asset that cannot meet modern security controls but is still needed for contract performance. These systems may be declared out of scope if they are properly isolated, mitigated, and documented. A legacy Windows 95 computer meets the definition of a restricted IS.

Supporting Extracts from Official Content:

CMMC Scoping Guide (Level 2): “Restricted IS assets are those that cannot reasonably apply security requirements due to legacy or operational constraints. They are not assessed but must be identified and protected by alternative methods.”

Why Option B is Correct:

The Windows 95 system is an example of a restricted IS, so it can be scoped out.

Option A is incorrect — the asset is not handling CUI in this case.

Option C is incorrect — government property designation does not define scope.

Option D is incorrect — while it is “legacy,” it is not classified as OT; the correct CMMC term is restricted IS.

References (Official CMMC v2.0 Content):

CMMC Scoping Guide, Level 1 and Level 2 – Restricted IS definition.

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In Phase 3 (Post-Assessment), the assessor’s responsibility is to archive or dispose of assessment artifacts according to the C3PAO’s policies and retention requirements. By this point, final findings and results have already been delivered, so the only remaining step is ensuring proper handling of assessment materials.

Supporting Extracts from Official Content:

CAP v2.0, Post-Assessment Activities (§3.17): “The assessor must archive or dispose of any assessment artifacts in accordance with the C3PAO’s retention and destruction policy.”

Why Option D is Correct:

Determining practice pass/fail results and level recommendations occurs earlier in Phases 2 and 3.

The final step left for the assessor is the proper archiving or destruction of artifacts.

References (Official CMMC v2.0 Content):

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

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The Lead Assessor has the authority to make the final determination in situations where assessors cannot agree on a rating. CAP specifies that the Lead Assessor ensures consistency, resolves disputes, and provides the authoritative interpretation during the assessment process. Escalation to the CMMC-AB or Quality Assurance would only occur in rare post-assessment review cases, not during an active assessment.

Reference Documents:

CMMC Assessment Process (CAP), v1.0