Salesforce PDI Online Practice Questions and Exam Preparation

Salesforce PDI Online Questions & Answers

• Question 41:

  A development team wants to use a deployment script to automatically deploy to a sandbox during their development cycles.

  Which two tools can they use to run a script that deploys to a sandbox? Choose 2 answers

  A. SFDX CLI
  B. Developer Console
  C. Change Sets
  D. Ant Migration Tool
  A. SFDX CLI
  D. Ant Migration Tool

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  Explanation

  Both SFDX CLI and the Ant Migration Tool support scripted, automated deployments using command-line execution, which makes them suitable for running deployment scripts as part of a development or CI/CD process targeting sandboxes. The Developer Console is a manual, in-org tool and does not support automated scripting, while Change Sets are UI-driven and require manual steps, so they are not suitable for automated deployments.

• Question 42:

  A developer wants to get access to the standard price book in the org while writing a test class that covers an OpportunityLineltem trigger.

  Which method allows access to the price book?

  A. Use Test .getStandardPricebookid() to get the standard price book ID.
  B. Use @isTest [SeeAllData=true| and delete the existing standard price book.
  C. Use @Testvisible to allow the test method to see the standard price book.
  D. Use Test. loadData () and a static resource to load a standard price book.
  A. Use Test .getStandardPricebookid() to get the standard price book ID.

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  Explanation

  When writing test classes, accessing the Standard Price Book is essential for creating OpportunityLineItem records.

  The method Test.getStandardPricebookId() is specifically designed to retrieve the Standard Price Book ID in a test class context. This ensures you can work with the price book without requiring @isTest (SeeAllData=true).

  Why not other options?

  B: @isTest(SeeAllData=true) is not recommended because it violates Salesforce best practices by accessing actual org data.

  C: @TestVisible is used for visibility between classes but does not relate to retrieving Standard Price Book.

  D: Test.loadData() loads test data from static resources but is unnecessary for accessing the Standard Price Book.

  References:

  Salesforce Testing Framework Apex Testing Best Practices

• Question 43:

  A developer needs to display Salesforce data in a responsive UI that works across devices.

  Which framework provides built-in device awareness?

  A. Visualforce
  B. Aura Components
  C. Lightning Web Components
  D. Static HTML
  C. Lightning Web Components

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  Explanation

  Lightning Web Components are built on modern web standards and provide built-in responsiveness and device awareness. They automatically adapt to different screen sizes and devices, leveraging Salesforce's Lightning framework and design system. While Aura components also support responsive design, Lightning Web Components are the preferred modern framework with better performance and alignment with web standards. Visualforce and static HTML require additional effort to achieve comparable responsiveness.

• Question 44:

  A developer completed modifications feature that is comprised of two elements:

  1. Apex trigger 2. Trigger handler Apex class

  What are two factors that the developer must take into account to properly deploy them to the production environment? Choose 2 answers

  A. Apex classes must have at least 75% code coverage org-wide.
  B. All methods in the test classes must use @istest.
  C. At least one line of code must be executed for the Apex trigger.
  D. Test methods must be declared with the testMethod keyword.
  A. Apex classes must have at least 75% code coverage org-wide.
  C. At least one line of code must be executed for the Apex trigger.

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  Explanation

  75% Code Coverage (A):To deploy Apex code to production, Salesforce requires at least 75% of the code to be covered by tests across the organization.

• Question 45:

  When using Salesforce DX, what does a developer need to enable to create and manage scratch orgs?

  A. Sandbox
  B. Environment Hub
  C. Production
  D. Dev Hub
  D. Dev Hub

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  Explanation

  To create and manage scratch orgs in Salesforce DX, the Dev Hub must be enabled in your Salesforce production or Developer Edition org. Dev Hub acts as the central hub for managing scratch orgs.

• Question 46:

  Which three resources in an Aura component can contain JavaScript functions? Choose 3 answers

  A. Style
  B. Renderer
  C. Controller
  D. Design
  E. Helper
  B. Renderer
  C. Controller
  E. Helper

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  Explanation

  In Aura components:

  B. Renderer: Contains custom rendering logic.

  C. Controller: Manages user interaction and component events.

  E. Helper: Contains reusable JavaScript functions for logic.

• Question 47:

  A lead developer creates a virtual class called "OrderRequest". Consider the following code snippet:

  

  How can a developer use the OrderRequest class within the CustomerOrder class?

  A. Extends (class="OrderRequest"}public class CustomerOrder
  B. public class CustomerOrder implements Order
  C. public class CustomerOrder extends OrderRequest
  D. @Implements (class="OrderRequest")public class Customerorder
  C. public class CustomerOrder extends OrderRequest

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  Explanation

  In Apex, a class can extend a virtual class (similar to abstract classes in Java) by using the extends keyword. This allows the subclass (CustomerOrder) to inherit properties and methods from the parent virtual class (OrderRequest).

• Question 48:

  The following Apex method is part of the ContactService class that is called from a trigger:

  

  How should the developer modify the code to ensure best practices are met?

  

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

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  Explanation

• Question 49:

  A developer must create a DrawList class that provides capabilities defined in the Sortable and Drawable interfaces.

  

  Which is the correct implementation?

  

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

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  Explanation

  Interfaces in Java and Salesforce Apex:

  In Java or Apex, interfaces define a contract that classes must fulfill. They provide method signatures that any implementing class must define.

  The keyword implements is used to implement an interface.

  Classes and Inheritance:

  A class in Java/Apex cannot use extends to inherit from an interface. The extends keyword is reserved for inheriting from another class, while implements is used for interfaces.

  Multiple Interfaces:

  A class can implement multiple interfaces in both Java and Salesforce Apex. This is done by separating interface names with commas after the implements keyword.

  Correct Syntax:

  To create a DrawList class that implements both Sortable and Drawable interfaces, the syntax must:

  Use implements for interfaces.

  Provide implementations for all methods defined in the interfaces.

  Analysis of Options:

  Option A:

  Uses implements for each interface separately, which is syntactically incorrect in Java/Apex.

  Invalid due to redundancy.

  Option B:

  Correctly uses implements for multiple interfaces separated by a comma.

  Provides implementations for both methods, sort() and draw().

  Option C and D:

  Use extends for interfaces, which is invalid. Interfaces cannot be extended by classes.

  Final Implementation:

  

  References:

  Apex Classes and Interfaces Documentation Trailhead Module on Apex Interfaces Option B is the correct implementation as it adheres to the rules for working with interfaces in Java/Apex.

• Question 50:

  Which three data types can a SOQL query return? Choose 3 answers

  A. Double
  B. O Long
  C. sObject
  D. dg Integer
  E. List
  A. Double
  C. sObject
  E. List

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  Explanation

  sObject: SOQL queries can return single or multiple records as sObject instances.

  List: SOQL queries often return results as a List of sObject.

  Double: SOQL aggregate queries can return numeric data types like Double (e.g., COUNT, SUM).