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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:

1. 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.
B) Implement the with sharing keyword in the class declaration.
C) Implement the with keyword in the class declaration.
D) Annotate the Apex method with @AuraEnabled(Cacheable=True).
E) Use the WZ E D clause within the SOQL query.

2. A user receives the generic "An internal server error has occurred" while interacting with a custom Lightning component.
What should the developer do to ensure a more meaningful message?

A) Add an onerror event handler to the tag.
B) Use an AuraHandledexception in a try-catch block.
C) Use platform events to process the error
D) Add an error-view component to the markup.

3. A developer is trying to access org data from within a test class.
Which sObject type requires the test class to have the (seeAllData=true) annotation?

A) Profile
B) User
C) Report
D) RecordType

4. Part of a custom Lightning component displays the total number of Opportunities in the org, which are in the millions. The Lightning component uses an Apex method to get the data it needs.
What is the optimal way for a developer to get the total number of Opportunities for the Lightning component?

A) Apex batch job that counts the number of Opportunity records
B) SOQL for loop that counts the number of Opportunities records
C) COUNT () SOQL aggregate query on the Opportunity object
D) SUM () SOQL aggregate query on the Opportunity object

5. A developer is working with existing functionality that tracks how many times a stage has changed for an Opportunity. When the Opportunity's stage is changed, a workflow rule is fired to increase the value of a field by one. The developer wrote an after trigger to create a child record when the field changes from 4 to 5.
A user changes the stage of an Opportunity and manually sets the count field to 4. The count field updates to 5, but the child record is not created.
What is the reason this is happening?

A) Trigger.new does not change after a field update.
B) Trigger.old does not contain the updated value of the count field.
C) After triggers fire before workflow rules.
D) After triggers are not fired after field updates.

Solutions: