Salesforce PDI Online Practice Questions and Exam Preparation

Salesforce PDI Online Questions & Answers

• Question 21:

  While writing an Apex class, a developer wants to make sure that all functionality being developed is handled as specified by the requirements.

  Which approach should the developer use to be sure that the Apex class is working according to specifications?

  A. Include a savepoint and pacabase.rollback().
  B. Include a try/catch block to the Apex class.
  C. Run the code in an Execute Anonymous block in the Developer Console.
  D. Create a test class to execute the business logic and run the test in the Developer Console.
  D. Create a test class to execute the business logic and run the test in the Developer Console.

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  Explanation

  Creating test classes ensures that the Apex class works according to specifications by validating the functionality under various scenarios and edge cases. Running tests in the Developer Console provides detailed feedback on whether the class meets requirements.

• Question 22:

  A Next Best Action strategy uses an Enhance element that invokes an Apex method to determine a discount level for a Contact, based on a number of factors.

  What is the correct definition of the Apex method?

  

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

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  Explanation

  An Invocable Method must be declared as global or public and static, must accept exactly one parameter of type List, and must return a List. When multiple output records per input are required, the correct return type is List>. Option D is the only option that satisfies all Invocable Method signature requirements.

• Question 23:

  An Apex method, getAccounts, that returns a list of Accounts given a searchTerm, is available for Lightning Web Components to use.

  What is the correct definition of a Lightning Web Component property that uses the getAccounts method?

  

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

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  Explanation

  Option D correctly defines a property that uses the getAccounts Apex method. It uses the @wire decorator with a parameterized method reference.

  @wire(getAccounts, { searchTerm: '$searchTerm' }) accountList;

• Question 24:

  What are two ways for a developer to execute tests in an org? Choose 2 answers

  A. Tooling API
  B. Metadata API
  C. Bulk API
  D. Developer Console
  A. Tooling API
  D. Developer Console

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  Explanation

  Tooling API:

  The Tooling API provides programmatic access to manage tests and other metadata in the org.

  It can execute test classes or methods remotely.

  Developer Console:

  The Developer Console is a built-in Salesforce tool to execute Apex tests, debug logs, and more.

  Allows developers to execute tests interactively.

  B. Metadata API: Used for managing metadata, not for running tests.

  C. Bulk API: Used for data operations, not related to testing.

  Tooling API Overview: https://developer.salesforce.com/docs/atlas.en-us.api_tooling.meta/api_tooling/

  Testing with Developer Console: https://help.salesforce.com/s/articleView?id=sf.code_dev_console_test.htm

• Question 25:

  Refer to the code snippet below:

  

  When a Lightning web component is rendered, a list of apportunities that match certain criteria shopuld be retrievved from the database and displayed to the end user.

  Which three Considerations must the developer implement to make the method available within the Lightning web component? Choose 3 answer

  A. The method must specify the (cacheable=true) attribute.
  B. The method must specify the (continuation=true) attribute.
  C. The method must be annotated with the @AuraEnabled annotation.
  D. The method must be annotated with the @InvocableMethod annotation.
  E. The method cannot mutate the result set retrieved from the database.
  A. The method must specify the (cacheable=true) attribute.
  C. The method must be annotated with the @AuraEnabled annotation.
  E. The method cannot mutate the result set retrieved from the database.

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  Explanation

• Question 26:

  The value of the account type field is not being displayed correctly on the page. Assuming the custom controller is properly referenced on the Visualforce page, what should the developer do to correct the problem?

  A. Add a getter method for the actType attribute.
  B. Change theAccount attribute to public.
  C. Add with sharing to the custom controller.
  D. Convert theAccount.Type to a String.
  A. Add a getter method for the actType attribute.

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  Explanation

  Visualforce pages can only access controller properties through public getter methods. If the value is not displaying, it indicates the attribute is not exposed with a proper getter. Changing the variable to public is not required, with sharing affects record access not field display, and converting Account.Type to String does not resolve data binding issues.

• Question 27:

  A developer at AW Computing is tasked to create the supporting test class for a programmatic customization that leverages records stored within the custom object, Pricing Structure c. AW Computing has a complex pricing structure for each item on the store, spanning more than 500 records.

  Which two approaches can the developer use to ensure Pricing _Structure__c records are available when the test class is executed? Choose 2 answers

  A. Use a Test Date Factory class.
  B. Use the @TsTest (SeeAllData=true) annotation.
  C. Use the Test. leadteat{) method.
  D. Use without sharing on the class declaration.
  A. Use a Test Date Factory class.
  B. Use the @TsTest (SeeAllData=true) annotation.

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  Explanation

  A Test Data Factory class programmatically creates the required Pricing_Structure__c records during test execution and is the recommended best practice for reliable, isolated tests. Using @IsTest(seeAllData=true) allows the test to access existing org data (including the 500+ records) when creating all that data in tests is impractical. Test.startTest()/Test.stopTest() do not create or expose data, and without sharing affects record access, not data availability.

• Question 28:

  Refer to the following Apex code:

  

  What is the value of x when it is written to the debug log?

  B. 1
  C. 2
  D. 4
  C. 2

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  Explanation

  Execution Flow:

  The do-while loop executes the body of the loop before evaluating the condition.

  Initial x = 0.

  Inside the loop: x = 1 (reassignment) and then incremented to 2.

  The condition x < 1 is false after the first iteration, so the loop exits.

  Debug Output:System.debug(x) logs 2.

• Question 29:

  The orderHelper class is a utility class that contains business logic for processing orders. Consider the following code snippet:

  

  A developer needs to create a constant named delivery_multiplier with a value of 4.15. The value of the constant should not change at any time in the code.

  How should the developer declare the delivery multiplier constant to meet the business objectives?

  A. static decimal DELIVERY_MULTIPLIER = 4.15;
  B. constant decimal DELIVERY_MULTIPLIER = 4.15;
  C. static final decimal DELIVERY_MULTIPLIER = 4.15;
  D. decimal DELIVERY_MULTIPLIER = 4.15;
  C. static final decimal DELIVERY_MULTIPLIER = 4.15;

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  Explanation

  Declaring the constant as static ensures it is shared across all instances of the class.

  Declaring it as final ensures its value cannot be modified after initialization.

• Question 30:

  A developer Is asked to create a Visualforce page that lists the contacts owned by the current user. This component will be embedded In a Lightning page.

  Without writing unnecessary code, which controller should be used for this purpose?

  A. Standard list controller
  B. Standard controller
  C. Lightning controller
  D. Custom controller
  B. Standard controller

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  Explanation