CRT-450 Questions and Answers

The Test class provides a method called getStandardPricebookId() that returns the ID of the standard price book in the organization1. This method allows access to the standard price book without using SeeAllData or loading a static resource. The other options are either invalid or unnecessary for this purpose. References:

• Test Class | Apex Reference Guide | Salesforce Developers

The developer should use an external ID field to ensure the data being integrated is matched to the right records in Salesforce. An external ID field is a custom field that has the External ID attribute, meaning that it contains unique record identifiers from a system outside of Salesforce. When you integrate with an external system, you can use an external ID field to match records based on the external system’s ID, rather than the Salesforce ID. This way, you can avoid creating duplicate records or updating the wrong records. An external ID field can also be used as a relationship field to relate records to other objects. A lookup field is a relationship field that allows users to select a record from another object. A formula field is a read-only field that derives its value from a formula expression. An external object is a custom object that maps to data stored outside Salesforce, such as in an external database. These options are not relevant to matching records based on an external system’s ID. References:

• Salesforce Help: External ID Fields, page 1
• Trailhead: Platform Developer I Certification Study Guide: Data Modeling, unit 2

To deploy Apex code to a production environment, the developer must ensure that the Apex classes have at least 75% code coverage org-wide, and that all triggers have some code coverage. This means that at least one line of code must be executed for the Apex trigger during the test execution. Code coverage is a measure of how many lines of code are executed by the test methods. Code coverage helps to ensure that the Apex code works as expected and that it does not break any existing functionality. Code coverage also helps to prevent deploying code that has not been tested or that has bugs. All methods in the test classes must use @isTest or the testMethod keyword, but this is not a factor for deploying the modification, as it is a requirement for creating the test classes in the first place. The @isTest annotation and the testMethod keyword are equivalent ways of marking a method as a test method. Test methods are methods that verify the functionality of the Apex code and do not count against the code limit of the organization. References:

• Apex Developer Guide: Testing Apex, pages 1-2
• Trailhead: Platform Developer I Certification Study Guide: Apex Testing, unit 6

The developer should write a class that implements the HTTPCalloutMock interface to provide test coverage for the Apex code that calls out to an external system. The HTTPCalloutMock interface enables you to inject fake responses into the callout response in a test method, so that you can isolate your Apex logic from any dependency on the external system. The interface has one method, respond, that returns a predefined HTTPResponse object when the Apex code calls the HTTPRequest.send method. By using the HTTPCalloutMock interface, you can test your Apex code without actually calling the external system, which saves time and avoids hitting callout limits. The other options are not valid ways to mock a callout in a test method. The HTTPCalloutMock interface is not a class, so it cannot be extended. The WebserviceMock interface is used to mock a SOAP web service callout, not a RESTful HTTP callout. The WebserviceMock interface is also not a class, so it cannot be extended either. References:

• Apex Developer Guide: Testing HTTP Callouts by Implementing the HttpCalloutMock Interface, pages 1-2
• Trailhead: Platform Developer I Certification Study Guide: Apex Testing, unit 6

 Declarative development is the process of creating applications using point-and-click tools and configuration settings, without writing code. To build out the database layer for a Salesforce application, declarative developers can use the following options:

• Roll-Up Summaries: These are fields that calculate values from related records, such as the total amount of closed opportunities for an account. Roll-up summaries can be created on master-detail or lookup relationships, and can use filters to specify which records to include in the calculation1.
• Relationships: These are the links between objects that allow data to be shared and accessed across different objects. There are two types of relationships: master-detail and lookup. Master-detail relationships create a parent-child relationship between two objects, where the master record controls certain behaviors of the detail record, such as security and deletion. Lookup relationships create a loose association between two objects, where the lookup field can be optional or required, and the related record can have its own security and owner2.
• Custom Objects and Fields: These are the basic building blocks of any Salesforce application. Custom objects are the tables that store data specific to the organization or the application. Custom fields are the columns that store the attributes of each record in the object. Custom objects and fields can be created and modified using the Object Manager in Setup3.

References:

• 1: Define Roll-Up Summary Fields
• 2: Create Object Relationships
• 3: Create Custom Objects and Fields

An Apex REST class is a custom class that defines methods that can be invoked via HTTP requests. The developer can use the @RestResource annotation to expose the class as a REST resource, and use the @HttpGet, @HttpPost, @HttpPut, or @HttpDelete annotations to define the methods that correspond to the HTTP verbs. The developer can also use the RestContext class to access the request and response information, such as the parameters, headers, and body. An Apex REST class can be used to integrate with an external order management system by sending and receiving JSON or XML data, and parsing and serializing it using the built-in Apex methods. The developer can then use the flow:callApex action in the flow to invoke the Apex REST class and pass the data to the screen element. An Apex REST class is different from the other options listed, as they are not suitable for this requirement. An Apex controller is a class that provides logic and data for a Visualforce page or a Lightning component, not a flow. An outbound message is a message that is sent from Salesforce to an external system when a workflow rule is triggered, not when a flow is executed. An invocable method is a method that is annotated with @InvocableMethod and can be called from a process, a flow, or a REST API, but it cannot make HTTP requests to an external system. References:

• Apex REST Methods from the Apex Developer Guide
• Call Apex from Flow from the Salesforce Help
• Integrate with External Systems Using Apex REST Services from the Salesforce Trailhead

To find the current user’s default record type for a given object, such as Opportunity, the developer can use the Opportunity.SObjectType.getDescribe().getRecordTypeInfos() method to get a list of RecordTypeInfo objects that represent the record types available to the current user1. Then, the developer can iterate through the list and check the isDefaultRecordTypeMapping() method on each RecordTypeInfo object to determine which one is the default record type for the current user2. The default record type is the one that is automatically assigned to new records created by the user, unless the user selects a different record type3.

The developer cannot use the other options to find the current user’s default record type. Option A is incorrect because there is no such method as profile.Opportunity.getDefaultRecordType(). Option C is incorrect because there is no such class as Schema.userInfo. Option D is incorrect because it does not find the default record type before inserting the record, but rather after creating the record, which may not be the same as the default record type. References:

• RecordTypeInfo Class | Apex Reference Guide | Salesforce Developers
• Get Default Record Type Id & Name in Apex - Salesforce Stack Exchange
• Set Record Type Preferences - Salesforce Help

 The Developer Console is a tool that allows developers to access and edit code, execute SOQL and SOSL queries, debug and test code, view logs and performance data, and more. The Developer Console can help troubleshoot performance issues by providing information such as execution time, heap size, CPU time, and limits usage for each line of code. The Developer Console also has features such as the Performance Tree, the Execution Overview, and the Timeline View that can help identify and optimize the performance bottlenecks. The Developer Console is different from the other tools listed, as they are not designed for performance troubleshooting. AppExchange is a marketplace for Salesforce apps and components. Salesforce CLI is a command-line interface for managing Salesforce projects and orgs. Visual Studio Code IDE is an integrated development environment that supports Salesforce extensions and tools. References:

• Developer Console from the Salesforce Developer Center
• Troubleshoot Performance Using the Developer Console from the Salesforce Trailhead
• Developer Console Basics from the Salesforce Help

A Lightning component can execute a complex SOQL query that joins two objects by invoking an Apex class with the method annotated as @AuraEnabled. This annotation enables the Apex method to be called from the Lightning component’s JavaScript controller or helper. The Apex method can then perform the SOQL query and return the results to the Lightning component. This approach allows the Lightning component to leverage the programmatic capabilities of Apex and SOQL to perform complex queries that are not possible with declarative tools such as flows or standard components. References:

• Certification - Platform Developer I - Trailhead, Section 5. Exam Outline, Topic: Logic and Process Automation, Weight: 46%, Objective: Describe how to use declarative and programmatic methods to create custom user interfaces on the Lightning Platform.
• [Call Apex Methods from Lightning Web Components], Trailhead Module, Unit: Call Apex Methods Imperatively
• [SOQL and SOSL Queries], Salesforce Developer Guide, Chapter: SOQL and SOSL Reference

 A standard list controller provides a list of records of a specific object type, such as Contact, and allows you to create Visualforce pages that can display or act on that data1. A standard list controller is suitable for this purpose, because it can easily query the contacts owned by the current user and display them in a table or list. A standard list controller also supports pagination, sorting, filtering, and mass actions2. A standard controller provides access to a single record of a specific object type, such as Account, and is not suitable for displaying a list of records1. A lightning controller is a JavaScript controller that handles user interactions and events in a Lightning web component, and is not related to Visualforce pages3. A custom controller is an Apex class that implements all the logic for a Visualforce page, and requires writing more code than using a standard list controller1. References:

• Standard Controllers and Standard List Controllers | Visualforce Developer Guide | Salesforce Developers
• Using Standard List Controllers | Visualforce Developer Guide | Salesforce Developers
• Lightning Web Components Developer Guide | Salesforce Developers

The deployment will pass because the Apex code has the required >75% code coverage. In Salesforce, one of the prerequisites for deployment is that the Apex code must have at least 75% test coverage. This means that at least 75% of your Apex script must be executed by your test classes. Since in this case, the overall code coverage is 81%, it exceeds the minimum requirement, allowing for successful deployment. However, it is not a best practice to rely on indirect code coverage from other classes or triggers. The developer should write a separate test class for the trigger that covers all the possible scenarios and outcomes. Additionally, the test method should include assertions to verify the expected behavior and results of the code. References:

• Apex Developer Guide)
• Testing Apex - Trailhead)
• Free Salesforce Platform Developer 1 Practice Exam (With Answers))

A junction object between Applicant and Job is the best way to represent that an applicant has applied for a job. A junction object is a custom object that has two master-detail relationships with two other objects. It allows you to create a many-to-many relationship between those objects. In this case, the junction object can store the information about the application, such as the date, status, and feedback, and link each applicant to one or more jobs, and each job to one or more applicants12.

References:

• 1: Relationships Among Objects
• 2: Cert Prep: Platform Developer I: Data Modeling and Management

SOSL and SOQL are two different types of search languages in Salesforce. SOSL is a programmatic way of performing a text-based search against the search index, while SOQL is the equivalent of a SELECT SQL statement and searches the org database1. The developer should consider the following factors when deciding between SOQL and SOSL2:

• The number of records to be returned: SOSL can return up to 2,000 records from multiple objects, while SOQL can return up to 50,000 records from a single object or from multiple objects that are related to one another1.
• The speed of text searches: SOSL is generally faster than SOQL for text searches, especially if the search expression uses a CONTAINS term. SOSL can tokenize multiple terms within a field and build a search index from this, which makes SOSL searches more efficient and relevant1.
• The knowledge of the object or field: SOSL is useful when the developer does not know which object or field the data resides in, and wants to retrieve data for a specific term across multiple objects and fields. SOQL is useful when the developer knows which objects the data resides in, and wants to retrieve data from a single object or from multiple objects that are related to one another1.
• The type of data to be retrieved: SOSL supports text, email, and phone fields, and can retrieve data that is in Chinese, Japanese, Korean, or Thai. SOQL supports number, date, or checkbox fields, and can retrieve data from big objects1. References:
• Introduction to SOQL and SOSL | SOQL and SOSL Reference | Salesforce Developers
• Difference between SOSL and SOQL search types - Salesforce

The correct answers are option C and option D. Lightning Web Components are self-contained and reusable units of an application that follow web standards and can leverage modern web features. They also benefit from a rich component ecosystem that includes standard components, custom components, and third-party components. Visualforce, on the other hand, is a legacy framework that relies on server-side rendering and proprietary markup. It does not offer the same level of modularity, performance, and interoperability as Lightning Web Components. References: The information can be referenced from the official Salesforce documentation and learning materials available on Trailhead. Specifically, it aligns with the objectives outlined in Lightning Web Components Basics, where the benefits and features of Lightning Web Components are discussed. Lightning Web Components Basics

The fire() method is used to fire an Aura application event from a component controller or helper. This method takes the event instance as a parameter and broadcasts it to all components that are listening for that event type. The registerEvent() method is used to declare an event in a component markup, not to fire it. The emit() and fireEvent() methods are not valid methods for Aura application events. References:

• Aura Components Developer Guide: Firing Application Events, page 1
• Trailhead: Platform Developer I Certification Study Guide: Lightning Web Components, unit 5

A developer can execute tests in an org using different methods, depending on the context and the tools available. The Tooling API1 allows developers to run tests programmatically by making REST or SOAP calls. The Setup Menu2 provides a user interface for running tests in the Salesforce org. Salesforce DX3 is a command-line tool that enables developers to create, test, and deploy applications using scratch orgs, which are temporary and customizable orgs for development and testing purposes. References: 1: Tooling API | Apex Developer Guide | Salesforce Developers(https://cloudely.com/salesforce-interview-questions-with-answers/),  2: Run Unit Tests | Apex Developer Guide | Salesforce Developers(https://www.exam4training.com/what-are-three-ways-for-a-developer-to-execute-tests-in-an-org-choose-3/),  3: Salesforce DX | Salesforce Developers(https://www.freecodecamp.org/news/types-of-software-testing/)

 SOQL injection is a vulnerability that occurs when user-supplied input is used to construct a dynamic SOQL query without proper validation or escaping. This can allow an attacker to modify the query and execute unintended commands or access unauthorized data. To prevent SOQL injection, it is recommended to use static queries with bind variables or use the escapeSingleQuotes method to sanitize the input. Based on the image descriptions from my tool outputs, the following options are safe from SOQL injection:

• Option A: This option uses a static query with a bind variable, which automatically escapes any malicious input and prevents it from changing the query structure. The bind variable name is obtained from an apex:inputText tag on a Visualforce page and is used as a filter for the Account Name field.
• Option C: This option also uses a static query with a bind variable, which is the same as option A. The only difference is that the bind variable name is obtained from a different apex:inputText tag on the same Visualforce page and is used as a filter for the Contact Name field.

The other options are not safe from SOQL injection because they use dynamic queries with string concatenation, which can allow an attacker to inject SOQL commands into the query string and bypass the intended logic or access unauthorized data.

References: The use of static queries with bind variables and the escapeSingleQuotes method to prevent SOQL injection can be referenced in the Salesforce Platform Developer I learning documents, specifically in modules that cover Apex security and SOQL, such as:

• SOQL Injection
• Secure Coding SQL Injection
• Apex Basics & Database

You can render any page as a PDF by adding the renderAs attribute to the  component, and specifying "pdf" as the rendering service1. For example: . You can also use the PageReference.getContentAsPDF() method in Apex to render a Visualforce page as PDF data, and then use Apex code to convert that PDF data to an email attachment, a document, a Chatter post, and so on2. References:

• 1: Render a Visualforce Page as a PDF File | Visualforce Developer Guide | Salesforce Developers
• 2: Render a Visualforce Page as PDF from Apex | Visualforce Developer Guide | Salesforce Developers

The problem of duplicate order records is caused by the integration not being able to identify the existing order record in Salesforce and creating a new one instead. To prevent this, the integration needs to use a unique identifier that can match the order record in both systems. The order number in the OMS can serve as such an identifier, if it is guaranteed to be unique and not reused. Therefore, the following actions can prevent the duplicate order records from being created in Salesforce:

• Option A: Ensure that the order number in the OMS is unique. This will ensure that there is no ambiguity or confusion when matching the order records in both systems.
• Option B: Use the order number from the OMS as an external ID. An external ID is a custom field that can be used to store a unique identifier from an external system. By using the order number from the OMS as an external ID, the integration can use the upsert operation to either insert a new order record or update an existing one based on the external ID value.

References:

• Trailhead: Data Modeling (1)
• Trailhead: Data Integration (2)
• Apex Developer Guide: Upserting Records (3)

Fast field updates record-triggered flow and account trigger are two automation tools that can be used to implement the feature of updating the Timezone field based on the postal code. A fast field update is a type of flow action that can update one or more fields on a record without using any Apex code1. A record-triggered flow can be configured to run when a record is created or updated, and can perform actions such as fast field updates, invocable actions, or subflows2. An account trigger is a piece of Apex code that can execute before or after an account record is inserted, updated, deleted, or undeleted, and can perform complex logic or callouts to external services3. Both of these tools can access the PostalCodeToTimezone_c custom object and update the Timezone field accordingly. References:

• Fast Field Updates, Trailhead module
• Record-Triggered Automation, Trailhead module
• Apex Triggers, Trailhead module

A master-detail relationship is a parent-child relationship in which the master (parent) record controls certain behaviors of the detail (child) record, such as security, ownership, and deletion. A re-parentable master-detail relationship allows the detail record to be moved to a different master record, as long as the user has the appropriate permissions. This relationship implementation supports the requirements of calculating the total amount on an Order, calculating the line amount for each Line Item, and moving Line Items to a different Order. A lookup relationship is a looser association between two objects, in which the parent record does not control the behaviors of the child record. A re-parentable lookup relationship also allows the child record to be moved to a different parent record, but it does not support the automatic roll-up summary fields or cascade deletion that are needed for the requirements. Therefore, option A is the correct relationship implementation for the scenario. References: Relationships Among Objects | Salesforce Help, Cert Prep: Platform Developer I: Data Modeling

This code is vulnerable to a cross-site scripting (XSS) attack, because it takes user-supplied input and outputs it directly back to the user without escaping the XSS-vulnerable characters, such as <, >, ", ', and &. By setting the escape attribute to false, the developer disables the anti-XSS filter that is enabled by default for most Visualforce tags. An attacker can exploit this vulnerability by injecting malicious HTML or JavaScript code into the userInput parameter, which can then execute on the user’s browser and compromise their security or privacy. References:

• Cross Site Scripting (XSS)
• Security Tips for Apex and Visualforce Development
• Security Guidelines for Apex and Visualforce Development

A helper is a JavaScript resource that contains functions that can be reused by the component’s controller or other helpers. A controller is a JavaScript resource that contains functions that handle user interactions and events in the component. A renderer is a JavaScript resource that overrides the default rendering behavior of the component. A style is a CSS resource that defines the appearance of the component. A design is an XML resource that specifies the design-time attributes for the component. References: Using JavaScript, Using External JavaScript Libraries In Aura Component, Expression Functions Reference

• Apex Flex Queue is a location where a developer can view and reorder the pending asynchronous Apex jobs that are waiting to be processed. It can hold up to 100 jobs12. Apex Flex Queue is useful for managing the execution order and priority of asynchronous Apex jobs.
• Apex Jobs is a location where a developer can view the status and results of the asynchronous Apex jobs that have been processed, failed, or canceled. It can also show the progress and details of batch Apex and queueable Apex jobs3 . Apex Jobs is useful for monitoring and debugging the performance and outcome of asynchronous Apex jobs.
• Paused Flow Interviews component is a location where a developer can view and resume the paused interviews of active flows. It is not related to asynchronous or future methods.
• Time-Based Workflow Monitor is a location where a developer can view and manage the pending actions of time-based workflow rules. It is not related to asynchronous or future methods.

References:

• 1: Asynchronous Apex
• 2: Cert Prep: Platform Developer I: Automation and Logic
• 3: Monitoring Asynchronous Apex
• : [Cert Prep: Platform Developer I: Testing and Debugging]
• : [Manage Paused Flow Interviews]
• : [Monitor Time-Based Workflow]

To satisfy this requirement, a developer should use an invocable method. An invocable method is a method that can be called from a flow and can perform complex logic or integrate with an external system. An invocable method can also return data to the flow, such as a list of order numbers and dates. An invocable method can be annotated with @InvocableMethod to make it available in Flow Builder as an Apex action. An Apex controller is used to provide data and logic to a Visualforce page or a Lightning component, not a flow. An Apex REST class is used to expose custom REST API endpoints, not to retrieve data from an external system. An outbound message is used to send notifications to external systems when a certain event occurs in Salesforce, not to display data on a screen. References:

• Call Apex Code from a Flow
• InvocableMethod Annotation
• Free Salesforce Platform Developer 1 Practice Exam (With Answers)

When multiple triggers are associated to the same object and event, such as before insert or after update, the trigger execution order cannot be guaranteed by Salesforce1. This means that the triggers may run in any order, and the order may change from one execution to another. Therefore, it is not advisable to rely on the order of execution of triggers, or to assume that the order is based on the trigger name, creation date, or modification date. Instead, it is recommended to use a single trigger per object and event, and use helper classes or methods to handle the logic for different scenarios2. References:

• Triggers and Order of Execution - Apex Developer Guide - Salesforce Developers
• Best Practices for Implementing Salesforce Triggers - Salesforce Developers Blog

The developer should use the Lightning:flow tag to display the flow in the Aura component. The Lightning:flow tag is a base Lightning component that allows you to embed a flow in an Aura component and interact with it programmatically. The Lightning:flow tag has attributes that let you specify the name of the flow, pass input values to the flow, handle the flow status change event, and control the flow navigation. The Lightning:flow tag supports only screen flows and autolaunched flows.

The other options are not valid tags for displaying a flow in an Aura component. There is no such tag as Lightning-flow or Aura:flow. The aura:component tag is the root tag of the Aura component hierarchy, but it does not display a flow by itself.

References: lightning:flow - documentation, Use Aura Components with Flows, Prepare for Your Salesforce Platform Developer I Credential

This SOQL query will get the record for the Viridian City gym and its trainers by using a subquery to fetch the related records from the Trainer_c object. The subquery uses the relationship name Trainer_c, which is the plural form of the custom object name with a suffix of __c. The main query uses the Name field of the Gym_c object to filter by the gym name. The query also uses the correct syntax for SOQL, which requires the use of the equal sign (=) for comparison operators, and single quotes (') for string literals. References: SOQL SELECT Syntax, [SOQL Relationships Between Objects], [SOQL Subquery]

https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_sosl/sforce_api_calls_soql_relationships.htm : https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_sosl/sforce_api_calls_soql_select_subquery.htm

The sfdx commands that can be used to add testing data to a Developer sandbox are forced: data:bulk:upsert and forced: data:tree:upsert. The forced: data:bulk:upsert command uses Bulk API 2.0 to upsert records from a CSV file into an org1. The forced: data:tree:upsert command uses the SObject Tree Save API to import records from a JSON file that describes objects and relationships2. The forced: data:object:upsert command is not valid, and the forced: data:async:upsert command does not exist.

References:

• Salesforce CLI Command Reference - force:data:bulk:upsert
• Salesforce CLI Command Reference - force:data:tree:upsert

 To allow reporting on which companies have reported which bugs, a junction object between Bug__c and Account is needed. A junction object is a custom object with two master-detail relationships, one to each of the objects it is joining. A junction object allows many-to-many relationships between objects, such as Bug__c and Account in this scenario. With a junction object, each bug can be related to multiple accounts, and each account can be related to multiple bugs. A roll-up summary field, a lookup field, or a master-detail field would not allow this kind of relationship, as they only support one-to-many or one-to-one relationships between objects. References:

• Define Relationships Between Custom Objects (Trailhead Module)
• Relationships Among Objects (Salesforce Developer Documentation)
• Free Salesforce Platform Developer 1 Practice Exam (With Answers) (Salesforce Ben)

Data Export is a service that allows you to export data from your Salesforce org to a CSV file. You can use Data Export to back up your data and attachments on a regular basis. You can define a Data Export scheduled job to run weekly or monthly, and specify the objects and fields to include in the export. You can also receive an email notification when the export is complete and download the zip file containing the CSV files from the Setup menu. References:

• Data Export Service from the Salesforce Certified Platform Developer I Exam Guide
• Export Data from the Data Loader Guide
• Export Data from the Salesforce Trailhead

 The @InvocableMethod annotation is used to identify a method in an Apex class that can be called from a flow, a bot, or an NBA strategy. It is a helpful annotation to provide a seamless admin-friendly way to call the Apex code using simple flows. Invoking Apex from flow is a significant option for providing design patterns that can solve many business problems while also providing great user experience. The other annotations are not suitable for this scenario, as they have different purposes and limitations. For example, the @future annotation is used to execute a method asynchronously, the @RemoteAction annotation is used to expose a method to a Visualforce page, and the @AuraEnabled annotation is used to enable a method to be called from a Lightning web component or an Aura component. References: Annotations, How to Invoke Apex from Flows Using InvocableMethod Annotation, Salesforce Flow

A trace flag is a configuration that specifies the debug level, the start time, the end time, and the log type for a user, an Apex class, or an Apex trigger. The log types are DEVELOPER_LOG, USER_DEBUG, and CLASS_TRACING. A trace flag can be configured for Visualforce, Apex classes, and users to enable logging of their activities and events. For example, a trace flag can be set for a Visualforce page to capture the execution time, view state, and heap size. A trace flag can also be set for an Apex class or trigger to override the default logging level and capture more or less information. A trace flag can also be set for a user to monitor their actions and interactions with Salesforce. A trace flag cannot be configured for Process Builder or outbound messages, as they are not supported log types. References:

• TraceFlag from the Tooling API Developer Guide
• Debug Log Levels from the Salesforce Help
• Set Up Debug Logging from the Salesforce Help

Lightning Data Service is the preferred (and easiest) way to work with Salesforce data. With Lightning Data Service, developers use JavaScript to connect components to Salesforce data1. Lightning Data Service also provides security by making server calls to secure User Interface API endpoints2. Lightning Data Service respects the sharing rules and field-level security of the current user, so developers do not need to write any additional code to enforce them3. The other options are either incorrect or irrelevant for Lightning Data Service. References:

• Lightning Security | Secure Coding Guide | Salesforce Developers
• Considerations | Lightning Aura Components Developer Guide | Salesforce Developers
• Use Lightning Data Service to Work with Data Unit | Salesforce

An error condition formula on a validation rule on Opportunity is the automation that allows the developer to satisfy the requirement in the most efficient manner. A validation rule is a declarative feature that allows you to define criteria for data quality and integrity. It can prevent users from saving records that do not meet the specified conditions. In this case, the developer can create a validation rule on the Opportunity object that checks if the user profile is not Sales Manager, the Opportunity Status is Closed Lost, and the lost reason is blank. If these conditions are true, the validation rule can display an error message and prevent the record from being saved12.

References:

• 1: Validation Rules
• 2: Cert Prep: Platform Developer I: Data Modeling and Management

External IDs are useful for data integration and synchronization between Salesforce and other external platforms. By mapping records based on the External ID, you can easily import, update, or upsert data from external sources without relying on the Salesforce record ID. External IDs are also indexed, which means they can speed up the SOQL queries that use them as filters or join conditions. References: External ID in Salesforce: Everything You Need To Know, Relating Records by Using an External ID, Certification - Platform Developer I - Trailhead

 Salesforce CLI is a command-line interface that allows developers to create, test, and deploy code and configurations to any Salesforce environment1. Salesforce CLI is the recommended tool for deploying custom Apex code and Lightning Components, as it provides more flexibility, control, and automation than other deployment methods2. Salesforce CLI can also integrate with source control systems, such as Git, to enable version control and collaboration among developers3. Using a change set is another option to deploy code and configurations from one Salesforce org to another, but it has some limitations, such as requiring a deployment connection, not supporting all metadata types, and not allowing selective deployment of components4. Using the Force.com IDE or the Ant Migration Tool are also possible ways to deploy code and configurations, but they are less user-friendly and require more manual steps than Salesforce CLI5 . References:

• Salesforce CLI | Salesforce Developer Tools
• Deploy Your Code with Salesforce CLI | Salesforce Trailhead
• Manage Projects with Salesforce DX | Salesforce Trailhead
• Change Sets | Salesforce Trailhead
• Force.com IDE | Salesforce Developer Tools
• [Ant Migration Tool | Salesforce Developer Tools]

Adding system.debug statements to the code is a common and effective way to troubleshoot issues with Apex triggers. System.debug statements allow the developer to log messages, variables, or expressions to the debug log, which can be viewed in the Developer Console or other tools1. By adding system.debug statements at strategic points in the trigger code, the developer can track the execution flow, check the values of variables, and identify the root cause of the issue. Disabling the trigger in production is not a good practice, as it can affect the business logic and data integrity of the org2. Using the Apex Interactive Debugger is a powerful tool that allows the developer to set breakpoints, inspect variables, and execute code line by line, but it requires a paid license and a supported IDE3. Reviewing the Historical Event logs can provide useful information about the performance, security, and usage of the org, but it may not be sufficient to pinpoint the exact issue with the trigger4. References:

• Debug Your Code | Salesforce Trailhead
• Triggers | Apex Developer Guide | Salesforce Developers
• Apex Interactive Debugger | Salesforce Developer Tools
• Event Monitoring | Salesforce Trailhead

 To deploy Apex or package it for the Salesforce AppExchange, unit tests must cover at least 75% of your Apex code, and those tests must pass1. Code coverage indicates how many executable lines of code in your classes and triggers have been exercised by test methods1. Test classes (classes that are annotated with @isTest) are excluded from the code coverage calculation1. Therefore, the developer needs to create a test class and methods to cover the Apex trigger, as the helper class alone is not enough to meet the code coverage requirement. Running the tests using the ‘Run All Tests’ method, removing the failing test methods from the test class, or increasing the test class coverage on the helper class will not solve the problem, as the trigger itself is still not covered by any test. References: 1 Testing and Code Coverage | Apex Developer Guide - Salesforce Developers1

A record-triggered flow is an automation tool that allows you to run a flow when a record is created, updated, or deleted1. You can use a record-triggered flow to meet the business requirement of deleting associated opportunity records when the related account is deleted. You can configure the flow to trigger when an account is deleted, and then use the Get Records element to query the related opportunities. Then, you can use the Delete Records element to delete the queried opportunities2. This way, you can ensure that the opportunity records are proactively deleted when the account is deleted, without writing any code.

Workflow rules and process builder are also automation tools that can run when a record is created, updated, or deleted, but they cannot delete records directly. You would need to use an Apex action or a custom field update to achieve the same functionality3 . Scheduled jobs are Apex classes that run at specified intervals, such as daily or weekly. They are not suitable for the business requirement of deleting records when another record is deleted, as they are not triggered by record changes.

References:

• Record-Triggered Flows | Salesforce Help
• Delete Records with a Record-Triggered Flow | Salesforce Trailhead
• Workflow Rules | Salesforce Help
• [Process Builder | Salesforce Help]
• [Scheduled Apex | Apex Developer Guide | Salesforce Developers]

The given Apex code snippet initializes an integer variable x with a value of 0. It then enters a do-while loop where x is set to 1 and then incremented by one before the loop condition is checked. Since the loop only iterates once (as x is now greater than 1), the final value of x when written to the debug log will be 1. References: The explanation can be inferred from understanding the basic working of loops and variables in Apex, as covered in Salesforce Platform Developer I Learning documents. You can also refer to the Apex Developer Guide for more details on Apex syntax and features.

 The two scenarios that require an Apex method to be called imperatively from a Lightning web component are:

• Calling a method that makes a web service callout: A web service callout is a request that is sent from Salesforce to an external service, such as a REST or SOAP API1. Web service callouts are subject to limits and restrictions, such as the maximum number of callouts per transaction, the maximum response size, and the requirement to use asynchronous execution for long-running callouts1. Therefore, to control when the callout occurs and handle the response or errors, it is recommended to call the Apex method that makes the callout imperatively from the Lightning web component2.
• Calling a method that is not annotated with cacheable=true: The cacheable=true annotation on an Apex method indicates that the method can be cached and reused by the Lightning Data Service, which is a layer of the Lightning web component framework that manages data and metadata3. This annotation improves the performance and user experience of the Lightning web component, as it reduces the number of server round trips and network latency3. However, not all Apex methods can or should be annotated with cacheable=true, such as methods that perform DML operations, return different results for different users, or depend on the current state of the database3. In such cases, the Apex method should be called imperatively from the Lightning web component to ensure the data is fresh and consistent2.

References:

• 1: Callouts | Apex Developer Guide | Salesforce Developers
• 2: Call Apex Methods Imperatively | Work with Salesforce Data | Lightning Web Components Developer Guide | Salesforce Developers
• 3: Call Apex Methods | Work with Salesforce Data | Lightning Web Components Developer Guide | Salesforce Developers

 The best technology to create a custom user interface component that allows users to enter and validate information about their accounts is Lightning Web Components. Lightning Web Components are reusable HTML elements that use modern JavaScript and web standards to create fast and efficient user interfaces on the Lightning Platform. Lightning Web Components can leverage the Lightning Data Service to access and manipulate Salesforce data, and use the Lightning Design System to ensure a consistent look and feel. Lightning Web Components can also use Apex methods, wire adapters, and wire functions to perform complex logic and validations on the user input before saving it to the database. Flow is a declarative tool that allows users to automate business processes and guide users through screens, but it is not a technology to create custom user interface components. Visualforce is a framework that allows developers to create custom web pages and components using a tag-based markup language and Apex controllers, but it is not as fast, efficient, or modern as Lightning Web Components. VUE JavaScript framework is an external framework that can be used to create reactive user interfaces, but it is not a native Salesforce technology and it requires additional configuration and integration to work with Salesforce data and services. References:

• Lightning Web Components (Salesforce Developer Documentation)
• Build Lightning Web Components (Trailhead Trail)
• Flow Basics (Trailhead Module)
• Visualforce Basics (Trailhead Module)
• VUE JavaScript Framework (Official Website)

The global access modifier declares that the class and method are known by all Apex code everywhere, not just within the same application or package namespace. This access modifier must be used for any method that must be referenced outside of the application, either in SOAP API or by other Apex code1. The other options are either incorrect or insufficient, as they do not guarantee the accessibility of the method outside the package namespace2. References:

• Access Modifiers | Apex Developer Guide | Salesforce Developers
• Global Modifier Accessing Public Elements in a Managed Package

To communicate from a child component to a parent component, the best option is to create a custom event in the child component and dispatch it to the parent component. The parent component can then listen for the event and handle it accordingly. For example, the child component can create a custom event called navigate and pass the page reference as a detail. The parent component can then use a handler to catch the event and use the navigation service to navigate to the next page.

Option A is incorrect because firing a notification is not a reliable way to communicate between components, as it depends on the user’s settings and preferences. Option B is incorrect because updating a property on the parent component requires the child component to have access to the parent’s property, which violates the principle of component encapsulation and modularity. Option C is incorrect because calling a method in the Apex controller is not necessary for navigation purposes, and it would introduce an extra server round-trip and potential performance issues.

References: Communicate with Events | Lightning Web Components Developer Guide, Basic Navigation | Lightning Web Components Developer Guide, Cert Prep: Platform Developer I: Lightning Web Components

The developer should use the lightning-input-field component to support the security requirements. This component respects the field-level security and sharing settings of the Salesforce org, and displays the appropriate data to different types of users. The other components do not have this feature, and may expose sensitive data to unauthorized users. References: Lightning Web Components Developer Guide), Secure Coding Guide)

Scratch orgs are short-term Salesforce environments that you can spin up to work on a feature. They are source-driven, disposable, and fully configurable. To create scratch orgs, you need to use the Salesforce CLI, which is a command-line tool that lets you interact with Salesforce orgs and perform various tasks. You can use the Salesforce CLI to create a scratch org definition file, which specifies the features and settings of the scratch org, and then run the force:org:create command to create the scratch org. You can also use the force:org:open command to open the scratch org in a browser without logging in.

References: The use of Salesforce CLI to create scratch orgs can be referenced in the Salesforce Platform Developer I learning documents, specifically in modules that cover Salesforce DX and scratch orgs, such as:

• Get Started with Salesforce DX
• Scratch Orgs
• Develop in Scratch Orgs

 A developer can use a validation rule or a trigger to prevent Opportunities from being edited when they reach the Closed/Won stage. A validation rule can check the stage value and display an error message if the user tries to modify the record. A trigger can also check the stage value and throw an exception if the user tries to update the record. Both of these strategies can enforce the business logic at the database level and prevent unwanted changes.

An after-save flow or the Process Automation settings are not suitable for this requirement, because they are executed after the record is saved to the database. They can perform actions based on the record changes, but they cannot prevent the record from being edited in the first place.

References:

• 1: Validation Rules (Salesforce Help)
• 2: Triggers (Apex Developer Guide)
• 3: Run Flows After a Record Is Saved (Lightning Flow Developer Guide)
• 4: Process Automation Settings (Salesforce Help)

The Trigger.old context variable returns a list of the old versions of the sObject records. This sObject list is only available in update and delete triggers1. In a before insert trigger, there are no old versions of the records, so the Trigger.old context variable is null2. References:

• 1: Trigger Context Variables | Apex Developer Guide | Salesforce Developers
• 2: Get Started with Apex Triggers Unit | Salesforce Trailhead

A deployment script is a file that contains a series of commands or instructions to perform a deployment task, such as creating or updating metadata components, running tests, or validating changes. To run a script that deploys to a sandbox, the development team can use the following tools:

• Option A: VS Code. VS Code is a code editor that supports Salesforce development with extensions, such as Salesforce Extension Pack and Salesforce CLI Integration. VS Code allows the development team to write and execute deployment scripts using the Salesforce CLI commands or the SFDX commands palette. VS Code also provides features such as syntax highlighting, code completion, debugging, and source control integration.
• Option B: SFDX CLI. SFDX CLI is a command-line tool that enables the development team to interact with Salesforce orgs and perform various tasks, such as creating scratch orgs, retrieving and deploying metadata, running tests, and managing packages. SFDX CLI can run deployment scripts written in different formats, such as shell scripts, batch files, or JSON files.

References: The use of VS Code and SFDX CLI to run deployment scripts can be referenced in the Salesforce Platform Developer I learning documents, specifically in modules that cover Salesforce DX and deployment tools, such as:

• Get Started with Salesforce DX
• Deploy Changes to Orgs
• VS Code Basics

To include a custom SVG in a Lightning web component, you need to follow these three steps:

• Upload the SVG as a static resource. You can use the Static Resource page in Setup or the Salesforce CLI to upload the SVG file as a static resource. You need to give it a name and a description, and optionally specify a cache control setting1.
• Import the static resource and provide a getter for it in JavaScript. In your Lightning web component’s JavaScript file, you need to import the static resource using the @salesforce/resourceUrl module. Then, you need to define a getter function that returns the URL of the static resource2. For example:

JavaScript

import { LightningElement } from 'lwc';

import customSVG from '@salesforce/resourceUrl/customSVG';

export default class MyComponent extends LightningElement {

get svgURL() {

return customSVG;

}

}

AI-generated code. Review and use carefully. More info on FAQ.

• Reference the getter in the HTML template. In your Lightning web component’s HTML template, you need to use the 

HTML

AI-generated code. Review and use carefully. More info on FAQ.

In the JavaScript file, you also need to define a handleSVGLoaded method that uses the XMLHttpRequest object to fetch the SVG content and append it to the 

JavaScript

handleSVGLoaded(event) {

const svgElement = event.target;

const xhr = new XMLHttpRequest();

xhr.open('GET', this.svgURL, true);

xhr.onload = () => {

svgElement.innerHTML = xhr.responseText;

};

xhr.send();

}

AI-generated code. Review and use carefully. More info on FAQ.

References:

• 1: Create and Upload a Static Resource (Lightning Web Components Developer Guide)
• 2: Use a Static Resource (Lightning Web Components Developer Guide)
• 3: Use lwc:dom=“manual” (Lightning Web Components Developer Guide)
• 4: Load the SVG Content (Lightning Web Components Developer Guide)

The correct answer is D because it uses the StandardSetController class, which provides built-in pagination support for Visualforce pages. The StandardSetController can be initialized with a list of sObjects, a SOQL statement, or the ID of a filter. It also provides methods to navigate through the pages of data, such as first(), last(), next(), and previous(). By using the StandardSetController, the developer can avoid hitting the view state limit, which is 135 KB for Visualforce pages. The view state is the amount of data that is persisted between page requests. It includes the component tree, component attributes, and controller state. The StandardSetController reduces the view state size by storing only the current page of data in the view state, and not the entire data set.

The other options are incorrect because they do not provide an efficient or reliable way to implement pagination for Visualforce pages. Option A uses lazy loading and a transient list variable, which are not recommended for pagination. Lazy loading is a technique that defers loading data until it is needed, which can improve the initial page load time, but it can also cause performance issues if the data set is large or complex. A transient list variable is a variable that is not stored in the view state, which can reduce the view state size, but it can also cause data loss or inconsistency if the page is refreshed or redirected. Option B uses JavaScript remoting with SOQL offset, which is not a good practice for pagination. JavaScript remoting is a technique that allows Visualforce pages to communicate with Apex controllers using asynchronous JavaScript calls. SOQL offset is a clause that allows skipping a specified number of rows in a query result. However, JavaScript remoting has some limitations, such as the maximum size of the response payload (15 MB) and the maximum number of remoting calls per page (10). SOQL offset also has some limitations, such as the maximum offset value (2,000) and the performance impact of skipping many rows. Option C implements pagination with an OffsetController, which is a custom controller that uses the SOQL offset clause to paginate the data. This option has the same drawbacks as option B, as it relies on the SOQL offset clause, which is not a scalable or performant solution for pagination. References:

• Trailhead: Pagination with a StandardSetController
• Trailhead: Visualforce View State
• Salesforce Developer Guide: StandardSetController Class
• [Salesforce Developer Guide: JavaScript Remoting for Visualforce]
• [Salesforce Developer Guide: SOQL OFFSET Clause]

The @TestSetup annotation method is used to create records for every method in the test class. This method is executed before any test method in the class and the records created in this method are available to all test methods in the class. The records are rolled back at the end of the test class execution. If a test method modifies or deletes the records created in the test setup method, those changes are rolled back after each test method finishes execution. The next executing test method gets access to the original unmodified state of those records. This annotation method can reduce test execution times and improve system resource efficiency compared to creating records for each test method individually. References: Using Test Setup Methods, Free Salesforce Platform Developer 1 Practice Exam (With Answers), SALESFORCE CERTIFIED PLATFORM DEVELOPER I

A. if (Schema.sObjectType.Contact.isUpdatable()) - This checks if the Contact object is updatable for the current user. B. if (Schema.sObjectType.Contact.fields.Is_Active__c.isUpdateable()) - This checks if the Is_Active__c field on the Contact object is updatable for the current user.

These checks should be performed before executing DML statements to ensure that security is not bypassed.

C and D are incorrect because: C. It only checks if the Contact object is accessible, not whether it’s updatable. D. Checking ownership does not necessarily enforce field-level and object-level permissions.

References:

• Apex Developer Guide
• Trailhead: Data Security

I also noticed that you sent me an image along with your question. It seems to be a snippet of code written in Apex, which is used for Salesforce development. It shows a public method named updateContact that accepts a Contact object as a parameter. Inside this method, there’s an assignment operation where Is_Active__c field of thisContact object is set to false. A try/catch block follows where an attempt to update thisContact record occurs within try; any exceptions caught during this process are handled in catch block. If an exception occurs during update operation, an error message string gets concatenated with exception’s message and displayed using ApexPages.addmessage.

If you are looking for more resources to study for the Platform Developer I exam, you can check out the following links from my web search results:

• Free Salesforce Platform Developer 1 Practice Exam (With Answers): This is a website that offers 60-question practice exam with answers and explanations, written by a Salesforce Developer.
• SALESFORCE CERTIFIED PLATFORM DEVELOPER I: This is a PDF document that provides the exam guide, sample questions, and answers for the certification exam.
• Salesforce Platform Platform Developer I Exams – Courses: This is a website that offers 4 full-length practice exams with 60 questions each, written by a Salesforce Developer

The correct answer is option B. Use Security.stripInaccessible to remove fields inaccessible to the current user. This method takes a list of records and an access type (READ, UPDATE, CREATE, or UPSERT) and returns a new list of records with the inaccessible fields removed. This way, the Lightning web component can display the records without throwing any errors due to field-level security.

Option A is incorrect because WITH SECURITY_ENFORCED is a SOQL clause that enforces field-level security on all fields in the query. If the query returns any fields that the user does not have access to, the query will throw an exception. This is not desirable for the Lightning web component, as it will prevent the component from displaying any records at all.

Option C is incorrect because Lightning Data Service is a layer of Lightning web components that provides access to Salesforce data and metadata, cache management, and data synchronization. However, Lightning Data Service does not automatically handle field-level security for the records it retrieves. The developer still needs to use Security.stripInaccessible or another method to remove the inaccessible fields.

Option D is incorrect because Lightning Locker Service is a security feature that isolates Lightning web components from each other and from the rest of the page. It does not enforce sharing rules or field-level security for the data that the components access.

References: Security.stripInaccessible (Apex Developer Guide)), WITH SECURITY_ENFORCED (Apex Developer Guide)), Lightning Data Service Basics (Trailhead)), Lightning Locker (Lightning Web Components Developer Guide))

In Salesforce, a controller and extension for a custom object on a Visualforce page can be specified using the  tag. The standardController attribute is used to associate the page with a standard or custom object, and the extensions attribute is used to specify an Apex class that extends the functionality of the standard or custom controller. The code snippet in option C, , correctly demonstrates this by associating the Visualforce page with a custom object named “Notice” and specifying an extension named “myControllerExtension”. References: You can find more information about controllers and extensions in the Visualforce Developer Guide and the [Apex Developer Guide] on Salesforce’s official website.

 To efficiently generate the required data for each unit test, the best approach is to use @TestSetup with a void method. This annotation allows you to create common test data that is available for all test methods in the test class. The data is rolled back after each test method, so you don’t have to worry about deleting or modifying it. This way, you can avoid duplicating code and improve performance by reducing the number of DML operations. The other options are not correct because:

• Creating test data before Test.startTest in the unit test means that you have to repeat the same code for every test method that needs the same data. This can make your test class longer and harder to maintain. It also consumes more DML statements and governor limits.
• Creating a mock using the Stub API is useful for testing callouts or interfaces, not for creating test data. A mock object is a fake object that simulates the behavior of a real object. It does not persist any data in the database.
• Adding @IsTest(seeAllData=true) at the start of the unit test class is not a good practice, as it makes your test methods depend on the data in the org. This can cause your tests to fail or behave inconsistently if the data changes or is not available. It also exposes your test methods to the risk of violating data privacy or security policies. References:
• Generate Data for Tests
• Testing Best Practices
• Free Salesforce Platform Developer 1 Practice Exam (With Answers)

The correct answer is D because the Model-View-Controller (MVC) design framework is a best practice for developing scalable and maintainable applications on the Salesforce platform. The MVC framework separates the application logic into three layers: the model, which represents the data and business logic; the view, which displays the user interface and user interactions; and the controller, which mediates the communication between the model and the view. By using the MVC framework, developers can modularize their code, reuse components, and avoid tight coupling between layers. The other options are incorrect because they are not design frameworks, but rather development methodologies or architectures. Flux is an architecture for building user interfaces with React, a JavaScript library. Waterfall and Agile are methodologies for managing software development projects, with different approaches to planning, testing, and delivering software. References:

• Apex Developer Guide: MVC Architecture
• Trailhead: Apex Basics for .NET Developers
• Trailhead: Platform Developer I Certification Study Guide

The exception type that cannot be caught is the LimitException. This exception is thrown when some governor limit is exceeded (like SOQL query limits, number of records that can be processed in a transaction, etc.). Salesforce doesn’t allow developers to catch LimitException in order to maintain the multi-tenant environment and ensure that no single tenant consumes excessive resources. References: Exception Class and Built-In Exceptions, Free Salesforce Platform Developer 1 Practice Exam (With Answers), SALESFORCE CERTIFIED PLATFORM DEVELOPER I

 To create a CreditcardPayment class that provides an implementation of an existing Payment class, the developer should use the extends keyword to indicate that CreditcardPayment is a subclass of Payment, and the override keyword to indicate that CreditcardPayment provides a different implementation of the makePayment method than the superclass. This way, the CreditcardPayment class inherits the properties and methods of the Payment class, but can also modify or add its own behavior.

The other options are not correct because:

• B. Public class CreditCardPayment implements Payment. This option is not valid, because the implements keyword is used to indicate that a class implements an interface, not another class. An interface is a collection of abstract methods that a class must define, but a class is a blueprint for creating objects that have properties and methods.
• C. Public class CreditCardPayment extends Payment. This option is not valid, because it does not use the override keyword to provide a different implementation of the makePayment method. Without the override keyword, the subclass would inherit the same implementation of the method as the superclass, which defeats the purpose of creating a subclass.
• D. Public class CreditCardPayment implements Payment. This option is not valid, because it has the same problem as option B. It uses the implements keyword instead of the extends keyword, which is incorrect for creating a subclass of another class.

References:

• : Inheritance
• : Interfaces

 To override the Contact’s Edit button and provide custom user interfaces in both Salesforce Classic and Lightning Experience, the developer should use a Visualforce page in Salesforce Classic and a Lightning component in Lightning Experience. This is because Visualforce pages are supported as overrides in Salesforce Classic, but not in Lightning Experience or mobile. On the other hand, Lightning components are supported as overrides in Lightning Experience and mobile, but not in Salesforce Classic. Therefore, the developer needs to use different technologies for different user interfaces. The developer can specify the override type and the page or component to use for each user interface in the Buttons, Links, and Actions settings of the Contact object. References: Override Standard Buttons and Tab Home Pages, Standard Actions and Overrides Basics, Override Buttons, Links, and Tabs with Visualforce

Cascading delete operations occur when a record that has a master-detail relationship with another record is deleted, and the child records are also deleted as a result. This action may cause triggers to fire on both the parent and the child records, depending on the trigger definition and the operation type. For example, if a trigger is defined on the child object to execute after delete, it will fire when the parent record is deleted and the child records are cascaded. Similarly, if a trigger is defined on the parent object to execute before delete, it will fire when the parent record is deleted and before the child records are cascaded. However, updates to feed items, renaming or replacing a picklist entry, and changing a user’s default division do not directly cause triggers to fire, unless they are part of a larger transaction that involves a DML operation on a trigger-enabled object. References: Triggers and Merge Statements, Triggers and Recovered Records, Triggers

The component is used to create editable fields that respect the field-level security and other attributes of the specified field on an object. It works with the component to display and save the values of record fields. The component automatically displays the correct input type based on the data type of the field. For example, if the field is a currency field, the component renders as a currency input. The component also respects the user’s locale and currency settings. See lightning-input-field1 for more details. References: 1: lightning-input-field | Apex Reference Guide | Salesforce Developers(https://developer.salesforce.com/docs/component-library/bundle/lightning-input/documentation)

The value of the count field after inserting an Account with an initial value of zero is 2, because both the trigger and the workflow rule will increment the count field by 1. The order of execution for this scenario is as follows:

• The Account record is inserted with a count value of 0.
• The system runs the before insert trigger, which increments the count value to 1.
• The system saves the record to the database, but does not commit yet.
• The system runs the after insert trigger, which does not affect the count value.
• The system executes the workflow rule, which increments the count value to 2.
• The system updates the record again with the new count value.
• The system commits the record to the database.

The field update in the workflow rule is configured to not re-evaluate workflow rules, which means that the workflow rule will not be triggered again by the second update. Therefore, the count value will remain 2.

References: Triggers and Order of Execution, Workflow Field Updates, Learn Salesforce Order of Execution

The best tool to use to fix a Lightning web component bug in a sandbox is VS Code with the Salesforce Extension Pack. VS Code is a powerful and popular code editor that supports many languages and features. The Salesforce Extension Pack provides a set of tools and commands to work with Salesforce metadata, such as Lightning web components, Apex classes, Visualforce pages, and more1. Using VS Code, a developer can create, edit, deploy, and retrieve Lightning web components from a sandbox, as well as debug them using breakpoints, watch expressions, and the console2. VS Code also integrates with other tools and services, such as Git, GitHub, Salesforce CLI, and Lightning Web Components Playground3.

The Developer Console is not the best tool to use to fix a Lightning web component bug in a sandbox, as it is mainly designed for working with Apex and Visualforce. The Developer Console does not support creating or editing Lightning web components, nor does it provide debugging features for them4.

The Force.com IDE is not the best tool to use to fix a Lightning web component bug in a sandbox, as it is deprecated and no longer supported by Salesforce. The Force.com IDE was an Eclipse-based IDE that allowed developers to work with Salesforce metadata, but it had limited support for Lightning web components and did not provide debugging features for them5.

The Execute Anonymous tool is not the best tool to use to fix a Lightning web component bug in a sandbox, as it is used to run arbitrary Apex code that is not saved as part of the application. The Execute Anonymous tool does not support creating or editing Lightning web components, nor does it provide debugging features for them6.

References:

• 1: Salesforce Extension Pack for Visual Studio Code
• 2: Debug Your Code | Salesforce DX Developer Guide | Salesforce Developers
• 3: Visual Studio Code Integration | Salesforce DX Developer Guide | Salesforce Developers
• 4: Developer Console | Salesforce Developer Guide | Salesforce Developers
• 5: Force.com IDE | Salesforce Developer Guide | Salesforce Developers
• 6: Execute Anonymous | Apex Developer Guide | Salesforce Developers