Salesforce PDI Online Practice Questions and Exam Preparation

Salesforce PDI Online Questions & Answers

• Question 141:

  A developer must create a Lightning component that allows users to input Contact record information to create a Contact record, including a Salary c custom field.

  What should the developer use, along with a lightning-record-edit-form, so that Salary__c field functions as a currency input and is only viewable and editable by users that have the correct field level permissions on Salary _c?

  

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

  ---

  Explanation

  lightning-input-field is the only option that automatically enforces Salesforce security controls, including field-level security (FLS) and object-level security (OLS), and integrates with Lightning Data Service. The other components either display formatted values or accept input without enforcing Salesforce security permissions.

• Question 142:

  A developer created a trigger on the Account object. While testing the trigger, the developer sees the error message `Maximum trigger depth exceeded'.

  What could be the possible causes?

  A. The developer does not have the correct user permission.
  B. The trigger is too long and should be refactored into a helper class.
  C. The trigger does not have sufficient code coverage.
  D. The trigger is getting executed multiple times.
  D. The trigger is getting executed multiple times.

  ---

  Explanation

  Maximum Trigger Depth Exceeded

  This error occurs when a trigger causes recursive calls, resulting in an infinite execution loop.

  Solution

  Use a static variable in a helper class to prevent recursive trigger execution.

  Example

  public class TriggerHelper { public static Boolean isTriggerExecuted = false;

  }

  trigger AccountTrigger on Account (after update) {

  if (!TriggerHelper.isTriggerExecuted) { TriggerHelper.isTriggerExecuted = true;

  // Trigger logic here

  }

  }

  Why Other Options Are Incorrect

  A: User permissions do not affect trigger recursion.

  B: Trigger length has no relation to recursion.

  C: Code coverage does not impact runtime recursion errors.

  ReferenceL https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_triggers_best_practices.htm

• Question 143:

  A developer needs to prevent the creation of Request _c records when certain conditions exist in the system.

  A BequestLogic class exists that checks the conditions.

  What is the correct implementation?

  

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

  ---

  Explanation

  Option C implements a before insert trigger to prevent the creation of Request__c records when specific conditions exist. It uses the addError method to display an error to users.

  Example of correct logic:

  trigger RequestTrigger on Request__c (before insert) {

  for (Request__c req : Trigger.new) {

  if (!RequestLogic.isValid(req)) {

  req.addError('Your request cannot be created at this time.');

  }

  }

  }

• Question 144:

  What are two use cases for executing Anonymous Apex code? Choose 2 answers

  A. schedule an Apex class to run periodically
  B. To delete 15,000 inactive Accounts in a single transaction after a deployment
  C. To run a batch Apex class to update all Contacts
  D. To add unit test code coverage to an org
  B. To delete 15,000 inactive Accounts in a single transaction after a deployment
  C. To run a batch Apex class to update all Contacts

  ---

  Explanation

  Anonymous Apex allows developers to execute ad hoc code snippets without creating a permanent class or trigger. It is useful for tasks like bulk data manipulation or testing.

  B. Deleting 15,000 inactive Accounts:

  Anonymous Apex can perform ad hoc bulk operations to clean up data after a deployment.

  Example:

  Use Cases:List inactiveAccounts = [SELECT Id FROM Account WHERE IsActive__c = false LIMIT 15000];

  delete inactiveAccounts;

  C. Running a batch Apex class:

  Anonymous Apex can execute batch jobs for data processing.

  Example:

  apex

  Copy code

  Database.executeBatch(new UpdateContactBatch());

  A. Schedule an Apex class to run periodically: This requires a scheduled job, not Anonymous Apex.

  D. Add unit test code coverage: Unit tests must be written in test classes and cannot be added using Anonymous Apex.

  Anonymous Apex: https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_execute_anonymous.htm

• Question 145:

  A lead developer creates an Apex interface called Laptop. Consider the following code snippet:

  public class SilverLaptop{

  //code implementation

  How can a developer use the Laptop interface within the silverLaptop class?

  

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

  ---

  Explanation

  To use an Apex interface within a class, the class must implement the interface using the implements keyword. This is the correct way to inherit behavior defined in an interface.

  Example:

  public class SilverLaptop implements Laptop {

  // Implementation of the methods defined in the Laptop interface

  }

  Why not other options?

  B: The extends keyword is used for inheriting from a class, not implementing an interface.

  C: This syntax is incorrect and not supported in Apex.

  D: This syntax is also incorrect as interfaces are not referenced with an @Interface annotation in Apex.

  References: Apex Interfaces Documentation

• Question 146:

  Universal Containers recently transitioned from Classic to Lightning Experience. One of its business processes requires certain values from the Opportunity object to be sent via an HTTP REST callout to its external order management system based on a user-initiated action on the Opportunity detail page. Example values are as follows:

  1. Name 2. Amount 3. Account

  Which two methods should the developer implement to fulfill the business requirement? (Choose two.)

  A. Create a custom Visualforce quick action that performs the HTTP REST callout, and use a Visualforce quick action to expose the component on the Opportunity detail page.
  B. Create a Remote Action on the Opportunity object that executes an Apex immediate action to perform the HTTP REST callout whenever the Opportunity is updated.
  C. Create a Lightning component quick action that performs the HTTP REST callout, and use a Lightning Action to expose the component on the Opportunity detail page.
  D. Create an after update trigger on the Opportunity object that calls a helper method using @future (Callout=true) to perform the HTTP REST callout.
  C. Create a Lightning component quick action that performs the HTTP REST callout, and use a Lightning Action to expose the component on the Opportunity detail page.
  D. Create an after update trigger on the Opportunity object that calls a helper method using @future (Callout=true) to perform the HTTP REST callout.

  ---

  Explanation

  Lightning Component Quick Action (C):Using a Lightning component ensures the user can trigger the HTTP REST callout via a button click on the Opportunity detail page. This provides a seamless user interface experience in Lightning Experience.

• Question 147:

  Which statement generates a list of Leads and Contacts that have a field with the phrase 'ACME'?

  

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

  ---

  Explanation

  SOSL queries that search across multiple objects return a List>. Option B uses correct SOSL syntax and the correct return type. Option A is invalid because SOQL cannot query multiple unrelated objects in a single SELECT. Option C has an invalid return type. Option D uses an incorrect return type for SOSL results.

  References:

  Queries in Apex SOQL vs SOSL

• Question 148:

  A developer needs to ensure test data does not affect production data.

  How should test classes be written?

  A. Use @isTest with SeeAllData=true
  B. Create data in test methods
  C. Use Execute Anonymous
  D. Query existing production records
  B. Create data in test methods

  ---

  Explanation

  Best practice in Salesforce testing is to create all required test data within the test methods themselves. By default, test classes run in an isolated context with no access to production data, ensuring repeatable and reliable tests. Using SeeAllData=true is discouraged because it introduces dependencies on existing data, which can change over time. Execute Anonymous and querying production records do not provide isolation and are not suitable for automated testing.

• Question 149:

  A developer needs to implement a custom SOAP Web Service that is used by an external Web Application. The developer chooses to include helper methods that are not used by the Web Application in the implementation of the Web Service Class.

  Which code segment shows the correct declaration of the class and methods?

  

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

  ---

  Explanation

  Option C is correct because a custom SOAP web service in Apex requires the class to be declared with the webservice keyword and every operation that should be exposed to the external application must be declared as webservice static. In C, WebServiceClass is declared as webservice class, updateRecords() is declared as webservice static, and the helper method is private static, so it is not exposed through the WSDL and remains internal to the implementation. Option A and D are incorrect because global class does not declare a SOAP web service; the webservice keyword is required on the class. Option B is incorrect because although the class is webservice, the method updateRecords() is not declared webservice, so it would not be exposed as a SOAP operation.

• Question 150:

  An org has an existing flow that creates an Opportunity with an Update Records element. A developer must update the flow to aiso create a `Contact and store the created Contact's 1D on the Opportunity.

  Which update must the developer make in the flow?

  A. Add a new Get Records element.
  B. Add a new Create Records element.
  C. Add a new Update Records element.
  D. Add a new Roll back Records element.
  B. Add a new Create Records element.

  ---

  Explanation