Describe the Ramifications of Field Updates and the Potential for Recursion. PLATFORM-APP-BUILDER Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   In the context of Apex triggers, what is recursion?

   • AA trigger that calls a method from another class.
   • BA trigger that calls a batch class to process records asynchronously.
   • CA trigger that performs a DML operation that causes the same trigger to fire again.
   • DA trigger that uses a loop to iterate over a list of records.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   Which approach can be used to limit recursion by counting the number of times a trigger has executed?

   • AA static Integer counter that is incremented each time the trigger runs and checked against a maximum.
   • BA custom setting that stores the count across transactions.
   • CA system debug log that records the number of executions.
   • DA non-static Integer variable that is incremented in the trigger.
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   A developer is writing a trigger on the Account object that updates a custom field on all related Contacts. The trigger is called recursively when the Contact update causes a workflow rule to update the Account. The developer wants to ensure the trigger logic runs only once per transaction, regardless of how many times the trigger is invoked. What is the most effective approach?

   • AUse the addError method to prevent the trigger from running more than once
   • BUse a recursion counter that increments each time the trigger runs and stops after 10 iterations
   • CUse a workflow rule instead of a trigger to update the Contacts
   • DUse a static Boolean flag to guard the trigger logic
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   Why is it a best practice to design triggers to be idempotent?

   • ASo that the trigger can be called from both Apex and workflow rules.
   • BSo that the trigger can be used in both before and after contexts.
   • CSo that the trigger runs faster by avoiding unnecessary DML operations.
   • DSo that running the trigger multiple times produces the same result without unintended side effects.
   Reveal Solution Discussion Select an answer first
6. 10foundation · easy

   What is a likely consequence of a trigger that recursively updates the same record without any guard?

   • AThe transaction will complete successfully but with a warning.
   • BThe transaction will be converted to an asynchronous operation.
   • CThe transaction will fail with a governor limit exception, such as 'Too many DML statements'.
   • DThe transaction will be automatically rolled back and retried.
   Reveal Solution Discussion Select an answer first