DEX-450 DUMP COLLECTION - VALID TEST DEX-450 BRAINDUMPS

DEX-450 Dump Collection - Valid Test DEX-450 Braindumps

DEX-450 Dump Collection - Valid Test DEX-450 Braindumps

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Free PDF DEX-450 - Programmatic Development using Apex and Visualforce in Lightning Experience Updated Dump Collection

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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q151-Q156):

NEW QUESTION # 151
What is the result when a Visualforce page calls an Apex controller, which calls another Apex class, which then results in hitting a governor limit?

  • A. Any changes up to the error are rolled back.
  • B. All changes before a savepoint are saved.
  • C. All changes are saved in the first Apex class.
  • D. Any changes up to the error are saved.

Answer: A


NEW QUESTION # 152
Given the following block code: try{ List <Accounts> retrievedRecords = [SELECT Id FROM Account WHERE Website = null]; }catch(Exception e){ //manage exception logic } What should a developer do to ensure the code execution is disrupted if the retrievedRecordslist remains empty after the SOQL query?

  • A. Replace the retrievedRecords variable declaration from ftount to a single Account.
  • B. Check the state of the retrievedRecords variable and use System.assert(false) if the variable is empty
  • C. Check the state of the retrieveRecords variable and throw a custom exception if the variable is empty.
  • D. Check the state of the retrievedRecords variable and access the first element of the list if the variable is empty.

Answer: B


NEW QUESTION # 153
A developer needs to make a custom Lightning Web Component available in the Salesforce Classic user interface.
Which approach can be used to accomplish this?

  • A. Embed the Lightning Web Component is a Visualforce Component and add directly to the page layout.
  • B. Use the Lightning Out JavaScript library to embed the Lightning Web Component in a Visualforce page and add to the page layout.
  • C. Use a Visualforce page with a custom controller to invoke the Lightning Web Component using a call to an Apex method.
  • D. Wrap the Lightning Web Component In an Aura Component and surface the Aura Component as a Visualforce tab.

Answer: B


NEW QUESTION # 154
Which data type or collection of data types can SOQL statements populate or evaluate to? (Choose 3)

  • A. A single sObject
  • B. An integer
  • C. A string
  • D. A Boolean
  • E. A list of sObjects

Answer: A,B,E


NEW QUESTION # 155
A developer needs to create a baseline set of data (Accounts, Contacts, Products, Assets) for an entire suite of Apex tests allowing them to test isolated requirements for various types of Salesforce cases.
Which approach can efficiently generate the required data for each unit test?

  • A. Use @TestSetup with a void method.
  • B. Add @IsTest (seeAllData=true) at the start of the unit test class.
  • C. Create a mock using the HttpcalloutMock interface.
  • D. Create test data before Test .startTest() in the unit test.

Answer: A


NEW QUESTION # 156
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