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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:

Question 1

Exhibit:

The test method above tests in Apex trigger that the developer knows will make a lot of queries when a lot of Accounts are simultaneously updated to be customers. The test method fails at the Line 20 because of too many SOQL queries. What is the correct way to fix this?

A. Change the DataFactory class to create fewer Accounts so that the number of queries in the trigger is reduced
B. Add Test.startTest() before Line 18 of the code and add Test.stopTest() after line 18 of the code
C. Replace most of the Apex Trigger with Process Builder processes to reduce the number of queries in the trigger
D. Add Test.startTest() before and Test.stopTest() after both Line 7 of the code and Line 20 of the code

Question 2

Consider the following code snippet:

How should the <e-orders> component communicate to the <c-selected-orders component that an order has been selected by the user?

A. Create and fire an application event.
B. Create and dispatch a custom event,
C. Create and fire a component event.
D. Create and fire a standard DOM event.

Question 3

A developer is developing a reusable Aura component that will reside on an sObject Lightning page with the following HTML snippet:

How can the component"5 controller get the context of the Lightning page that the sObject is on without requiring additional test coverage?

A. Use the gerSubjectType method in an Apex class.
B. Create a design attribute and configure via App Builder.
C. Set the sObject type as a component attribute.
D. Add force:hasSobjectName to the implements attribute.

Question 4

Universal Containers stores user preferences in a Hierarchy Custom Setting, User_Prefs_c, with a Checkbox field, Show_Help_c. Company-level defaults are stored at the organizational level, but may be overridden at the user level. If a user has not overridden preferences, then the defaults should be used.
How should the Show_Help_c preference be retrieved for the current user?

A. Boolean show = User_Prefs__c.getValues(UserInfo.getUserId()).Show_Help__c;
B. Boolean show = User_Prefs__c.getInstance().Show_Help__c;
C. Boolean show = User_Prefs__c.Show_Help__c;
D. Boolean show = User_Prefs__c.getValues().Show_Help__c;

Question 5

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

Solutions: