Updated Salesforce PDI Exam Questions with Accurate Answers in PDF

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Salesforce Platform Developer I (PDI) Sample Questions (Q23-Q28):

NEW QUESTION # 23
Which two statements accurately represent the MVC framework implementation in Salesforce? Choose 2 answers

A. Triggers that create records represent the Model (M) part of the MVC framework.
B. Validation rules enforce business rules and represent the Controller (C) part of the MVC framework
C. Lightning component HTML files represent the Model (M) part of the MVC framework.
D. Standard and Custom objects used in the app schema represent the View (V) part of the MVC framework

Answer: A,B

NEW QUESTION # 24
Universal Containers has a support process that allows users to request support from its engineering team using a custom object, Engineering_Support__c.
Users should be able to associate multiple engineering_Support__c records to a single Opportunity record.
Additionally, aggregate Information about the Engineering_support__c records should be shown on the Opportunity record.
What should a developer Implement to support these requirements?

A. Lookup field from Engineering_support__c to Opportunity
B. Master-detail field from Opportunity to Engineering_Support__c
C. Lookup field from Opportunity to Engineering_Support__c
D. Master-detail field from Engineering_Support__c to Opportunity.

Answer: D

NEW QUESTION # 25
Which annotation should a developer use on an Apex method to make it available to be wired to a property in a Lightning web component?

A. @RemoteAction(|cacheable=true)
B. @RemoteAction
C. @AureEnabled
D. @AureEnabled (cacheable=true)

Answer: D

NEW QUESTION # 26
A developer has an integer variable called maxAttempts. The developer meeds to ensure that once maxAttempts is initialized, it preserves its value for the lenght of the Apex transaction; while being able to share the variable's state between trigger executions. How should the developer declare maxAttempts to meet these requirements?

A. Declare maxattempts as a constant using the static and final keywords
B. Declare maxattempts as a private static variable on a helper class
C. Declare maxattempts as a member variable on the trigger definition.
D. Declare maxattempts as a variable on a helper class

Answer: A

NEW QUESTION # 27
A developer wants to improve runtime performance of Apex calls by caching results on the client.
What is the most efficient way to implement this and follow best practices?

A. Call the setStorable () method on the action in the JavaScript client-side code.
B. Decorate the server-side method with @AuraEnsbled(storable=true).
C. Set a cookie in the browser for use upon return to the page.
D. Decorate the server-side method with @AuraZnabled(cacheable=true).

Answer: D

Explanation:
To improve runtime performance by caching Apex call results on the client, the developer should decorate the server-side method with @AuraEnabled(cacheable=true).
@AuraEnabled(cacheable=true) Annotation:
When applied to an Apex method, it enables the method's results to be cached on the client, improving performance for subsequent calls.
This is especially effective in Lightning Web Components (LWC) and can also be used in Aura components.
"To cache method results, annotate the method with @AuraEnabled(cacheable=true). Methods annotated with cacheable=true are called cached methods."
- Lightning Web Components Developer Guide: Call Apex Methods
Why Not Other Options:
A . Call the setStorable() method on the action in the JavaScript client-side code: This approach is used in Aura components but is less efficient and not considered best practice compared to using cacheable=true.
"For improved performance, use @AuraEnabled(cacheable=true) instead of action.setStorable()."
- Aura Components Developer Guide: Calling Server-Side Actions
B . Set a cookie in the browser for use upon return to the page: Managing cookies for caching Apex results is not efficient and can lead to security and scalability issues.
C . Decorate the server-side method with @AuraEnabled(storable=true): There is no storable=true parameter for @AuraEnabled. The correct parameter is cacheable=true.
Best Practices:
Use @AuraEnabled(cacheable=true): This is the recommended way to cache Apex method results in Lightning components.
"Apex methods annotated with @AuraEnabled(cacheable=true) are cached on the client and shared across components."
- Lightning Web Components Developer Guide: Apex Methods Cache
Conclusion: By decorating the Apex method with @AuraEnabled(cacheable=true), the developer enables client-side caching of the method's results, improving runtime performance in an efficient and recommended way.

NEW QUESTION # 28
......

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