Salesforce CRT-450 Platform Developer I Exam Practice Test Questions

• Question 1

  What are three capabilities of the <ltng:require> tag when loading JavaScript resources in Aura components?Choose 3 answers

  • Specifying loading order
  • One-time loading for duplicate scripts
  • Loading files from Documents
  • Loading externally hosted scripts
  • Loading scripts in parallel

  Show Answer Answer: A, ,B, ,D Next

• Question 2

  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?

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

  Show Answer Answer: A Next

• Question 3

  Which annotation exposes an Apex class as a RESTful web service?

  • @HttpInvocable
  • @RemoteAction
  • @RestResource (urlMapping="'/mySexrvice/*')
  • @AuraEnabled(cacheable=true)

  Show Answer Answer: C Next

• Question 4

  Where are two locations a developer can look to find information about the status of batch or future methods?Choose 2 answers

  • Developer Console
  • Apex Flex Queue
  • Apex Jobs
  • Paused Flow Interviews component

  Show Answer Answer: B, ,C Next

• Question 5

  A developer created a child Lightning web component nested inside a parent Lightning web component. The parent component needs to pass a string value to the child component.In which two ways can this be accomplished? Choose 2 answers

  • The parent component can use a public property to pass the data to the child component.
  • The parent component can invoke a public method in the child component.
  • The parent component can use a custom event to pass the data to the child component.
  • The parent component can use the Apex controller class to send data to the child component.

  Show Answer Answer: A, ,B Next