Salesforce DEX-450 Online Practice Questions and Exam Preparation

Salesforce DEX-450 Online Questions & Answers

• Question 361:

  Which two ways can a developer instantiate a PageReference in Apex? Choose 2 answers

  A. By using an object standard set controller action
  B. By using ApexPages.currentPage()
  C. By using the PageReference.getURL() method
  D. By using an object standard controller action
  A. By using an object standard set controller action
  C. By using the PageReference.getURL() method

• Question 362:

  What are three ways for a developer to execute tests in an org? Choose 3.

  A. Bulk API
  B. ToolingAPI
  C. Metadata API
  D. Setup Menu
  E. Developer Console
  B. ToolingAPI
  C. Metadata API
  D. Setup Menu

• Question 363:

  What is a capability of a StandardSetController?Choose 2 answers

  A. It allows pages to perform mass updates of records
  B. It allows pages to perform pagination with large record sets
  C. It enforces field-level security when reading large record sets
  D. It extends the functionality of a standard or custom controller
  A. It allows pages to perform mass updates of records
  B. It allows pages to perform pagination with large record sets

• Question 364:

  Which approach should be used to provide test data for a test class?

  A. Query for existing records in the database.
  B. Execute anonymous code blocks that create data.
  C. Use a test data factory class to create test data.
  D. Access data in @TestVisible class variables.
  C. Use a test data factory class to create test data.

• Question 365:

  Which tool can deploy destructive changes to apex classes in production?

  A. Workbench
  B. Salesforce setup
  C. Change sets
  D. Developer Console
  A. Workbench

• Question 366:

  Universal Containers (UC) uses a custom object called Vendor. The Vendor custom object has a Master-Detail relationship with the standard Account object. Based on some internal discussion, the UC administrator tried to change the Master-Detail relationship to a Lookup relationship but was not able todo so. What is apossible reason that this change was not permitted?

  A. The Account records contain Vendor roll-up summary fields.
  B. The Vendor object must use a Master-Detail field for reporting.
  C. The Vendor records have existing values in the Account object.
  D. The Account object is included on a workflow on the Vendor object.
  A. The Account records contain Vendor roll-up summary fields.

• Question 367:

  An apex trigger fails because it exceeds governor limits. Which two techniques should a developer use to resolve the problem? Choose 2 answers

  A. Use the database class to handle DML operations
  B. Use maps to reference related records
  C. Use SOQL aggregate queries to retrieve child records
  D. Use lists for all DML operations
  B. Use maps to reference related records
  D. Use lists for all DML operations

• Question 368:

  Which two Apex data types can be used to reference a Salesforce record ID dynamically? (Choose two.)

  A. ENUM
  B. sObject
  C. External ID
  D. String
  A. ENUM
  D. String

• Question 369:

  When is an Apex Trigger required instead of a Process Builder Process?

  A. When a record needs to be created
  B. When multiple records related to the triggering record need to be updated
  C. When a post to Chatter needs to be created
  D. When an action needs to be taken on a delete or undelete, or before a DML operation is executed.
  D. When an action needs to be taken on a delete or undelete, or before a DML operation is executed.

• Question 370:

  Universal Containers wants to back up all of the data and attachments in its Salesforce org once month. Which approach should a developer use to meet this requirement?

  A. Use the Data Loader command line.
  B. Create a Schedulable Apex class.
  C. Schedule a report.
  D. Define a Data Export scheduled job.
  D. Define a Data Export scheduled job.