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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:

Question 1

A developer needs to store variables to control the style and behavior of a Lightning Web Component.
Which feature can be used to ensure that the variables are testable in both Production and all Sandboxes?

A. Custom setting
B. Custom metadata
C. Custom variable
D. Custom object

Question 2

An org has a requirement that an Account must always have one and only one Contact listed as Primary. So selecting one Contact will de-select any others. The client wants a checkbox on the Contact called 'Is Primary' to control this feature.
The client also wants to ensure that the last name of every Contact is stored entirely in uppercase characters.
What is the optimal way to implement these requirements?

A. Write a Validation Rule on the Contact for the Is Primary logic and a before update trigger on Contact for the last name logic.
B. Write an after update trigger on Contact for the Is Primary logic and a separate before update trigger on Contact for the last name logic.
C. Write an after update trigger on Account for the Is Primary logic and a before update trigger on Contact for the last name logic.
D. Write a single trigger on Contact for both after update and before update and callout to helper classes to handle each set of logic.

Question 3

A developer is creating a Lightning web component that displays a list of records in a lightning-datatable. After saving a new record to the database, the list is not updating.

What should the developer change in the code above for this to happen?

A. Create a variable to store the result and call refreshpex().
B. Create a new variable to store the result and annotate it with @track.
C. Call rafrasnApex() ON this.dazta.
D. Add the @track decorator to the data variable.

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.getValues().Show_Help__c;
C. Boolean show = User_Prefs__c.getInstance().Show_Help__c;
D. Boolean show = User_Prefs__c.Show_Help__c;

Question 5

Given the following containment hierarchy:
What is the correct way to communicate the new value of a property named ''passthrough'' to my-parent-component if the property is defined within my-child-component?
A)
B)

C)

D)

A. Option D
B. Option C
C. Option A
D. Option B

Solutions: