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Download Programmatic Development using Apex and Visualforce in Lightning Experience Exam Dumps

NEW QUESTION 39
A developer has a Visualforce page and custom controller to save Account records. The developer wants to display any validation rule violation to the user. How can the developer make sure that validation rule violations are displayed?

  • A. Add cuatom controller attributes to display the message.
  • B. Perform the DML using the Database.upsert() method.
  • C. Use a try/catch with a custom exception class.
  • D. Include <apex:message> on the Visualforce page.

Answer: D

 

NEW QUESTION 40
A team of many developers work in their own individual orgs that have the same configuration at the production org. Which type of org is best suited for this scenario?

  • A. Partner Developer Edition
  • B. Developer Sandbox
  • C. Developer Edition
  • D. Full Sandbox

Answer: D

 

NEW QUESTION 41
How can a developer use a Set<Id> to limit the number of records returned by a SOQL query?

  • A. Reference the Set in the WHERE clause of the query
  • B. Pass the Set as an argument in a reference to the Database.query() method
  • C. Pass the query results as an argument in a reference to the Set.containsAll() method.
  • D. Reference the Set in the LIMIT clause of the query

Answer: A

 

NEW QUESTION 42
Which Lightning code segment should be written to declare dependencies on a Lightning component, c:accountList, that is used in a Visualforce page?
A)
DEX-450-8595dc79c953bb68f0afd2c4696047a0.jpg
B)
DEX-450-ca9b2ce4eba3b26b137cbc3db376b904.jpg
C)
DEX-450-3c24d44eb09c819504ba69592ed3e425.jpg
D)
DEX-450-e309bbb677222c54c66f5ba0aa6803da.jpg

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

Answer: B

 

NEW QUESTION 43
What is a good practice for a developer to follow when writing a trigger? (Choose 2)

  • A. Using synchronous callouts to call external systems.
  • B. Using the Map data structure to hold query results by ID.
  • C. Using @future methods to perform DML operations.
  • D. Using the Set data structure to ensure distinct records.

Answer: B,D

 

NEW QUESTION 44
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