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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Objectives
Integration and APIs	- Platform events and messaging 1. Change Data Capture concepts 2. Event-driven architecture - External system integration 1. Callouts from Apex 2. REST and SOAP API usage
Application Development	- Asynchronous processing 1. Scheduled Apex 2. Future methods and limits considerations 3. Batch Apex and Queueable Apex - Advanced Apex programming 1. Exception handling and debugging strategies 2. Dynamic Apex and metadata-driven development 3. Apex design patterns and best practices
Testing and Deployment	- Deployment lifecycle 1. Change sets and deployment tools 2. Version control and CI/CD concepts - Testing strategies 1. Code coverage and quality practices 2. Test data creation and mocking
Data Modeling and Management	- Data access and security 1. Security enforcement in Apex 2. Sharing rules and Apex-managed sharing - Advanced data modeling 1. Large data volume considerations 2. Complex relationships and schema design

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q38-Q43):

NEW QUESTION # 38
A developer wrote a class named asccuntRisteryManager that relies on field history tracking. The class has a static method called getaccountHistory that Lakes in an Account as a parameter and returns a list of associated accountHistory object records.
The following test fails:

What should be done to make this test pass?

A. The tact method should he delated since this code cannat be tested
B. Create Accountdistory records manually in the test setup and write a query to get them.
C. Use @isTest (SeeAllData=true] to see historical data from the org and query for Accountdistory records.
D. Use Test. isRunningTest (] in getAccountHistory() to conditionally return fake AccountHistory records.

Answer: C

Explanation:
To make the test pass, @isTest(SeeAllData=true) should be used to allow the test to access historical data from the org. This is required because field history tracking data is not copied to a test context, so you need to allow the test to access live data to assert against it.

NEW QUESTION # 39
Refer to the test method below:

The test method calls an @future method that increments the Number_of_Times_Viewed__c value. The assertion is failing because the Number of Times Viewed_c equals 0. What is the optimal way to fix this?

A. Change the assertion to system.asserciquals (0, acctAfter Number _Cf_Timea_Viewed__c).
B. Add rest.staztTest() before and Test.stopTess() after AuditUcil.incrementViewed.
C. Add Test.atartTeat() before and Teat.stopTest() after inser= acct.
D. Change the initialization to acct. Number_Of_Times_Viewed_c = 1.

Answer: B

Explanation:
When a test method calls an @future method that performs DML operations, the changes made by the @future method won't be visible until after the Test.stopTest() is called. This method ensures that all asynchronous processes are completed before the test execution continues. Therefore, Test.startTest() should be before the call to the @future method and Test.stopTest() immediately after.

NEW QUESTION # 40
Refer to the following code snippet:

A developer created a JavaScript function as part of a Lightning web component (LWC) that surfaces information about Leads by wire calling geyFetchLeadList whencertain criteria are met. Which three changes should the developer implement in the Apex class above to ensure the LWC can display data efficiently while preserving security? Choose 3 answers

A. Annotate the Apex method with @AuraEnabled(Cacheable=True).
B. Implement the with keyword in the class declaration.
C. Use the WZ E D clause within the SOQL query.
D. Implement the with sharing keyword in the class declaration.
E. Annotate the Apex method with @AuraEnabled.

Answer: A,D,E

Explanation:
The Apex class needs to have the method annotated with @AuraEnabled to expose it to the LWC. The 'with sharing' keyword ensures that the data access is enforced according to the user's permissions. @AuraEnabled(cacheable=true) allows client-side caching for improved performance.
@AuraEnabled Annotation: Apex Developer Guide
Enforcing Sharing Rules: Apex Developer Guide

NEW QUESTION # 41
Which three Visualforce components can be used to initiate Ajax behavior to perform partial page updates?
Choose 3 answers

A. <Apex:form>
B. <apex:commandButton>
C. <apex:commondLink>
D. <apex:actionSupport>
E. <apex:actionsStatus>

Answer: B,C,D

Explanation:
<apex:commandLink> and <apex:commandButton> components can cause the form data to be sent to the server and can be configured to refresh specific parts of the page.
<apex:actionSupport> adds AJAX support to other components and can trigger partial page updates based on events such as onclick, onchange, etc.
Visualforce Guide

NEW QUESTION # 42
A business requires that every parent record must have a child record. A developer writes an Apex method with two DML statements to insert a parent record and a child record.
A validation rule blocks child records from being created. The method uses a try/catch block to handle the DML exception.
What should the developer do to ensure the parent always has a child record?

A. Set a database savepoint to rollback if there are errors.
B. Use Catabase.inserc() and set the all = parameter to true,
C. Delete the parent record in the catch statement when an error occurs on the child record DML operation.
D. Use addExror() on the parent record if an error occurs on the child record.

Answer: A

Explanation:
By setting a savepoint before the DML operations and rolling back to that savepoint in the event of an exception, the developer can ensure that the parent record is not committed without a corresponding child record.
Apex Developer Guide

NEW QUESTION # 43
......

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