Triggers and Data Processing PLATFORM-DEVELOPER-I Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A developer is writing an Apex trigger on the Opportunity object that must update the related Account's AnnualRevenue when Opportunities are inserted. The sales team routinely imports 500+ Opportunities at once via Data Loader. Which code pattern is the most appropriate to avoid hitting the DML governor limit?

   • AIn the trigger, use a single SOQL query inside the loop to fetch each Account and update it immediately.
   • BIn the trigger, update the Account records directly using the Opportunity's AccountId field without querying.
   • CIn the trigger, collect the related Account IDs into a Set, query the Accounts, update them in a Map, and perform a single DML update outside the loop.
   • DIn the trigger, loop through each Opportunity and update the related Account inside the loop.
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2. 7foundation · easy

   Which collection type is most appropriate for storing a set of unique Account IDs gathered from trigger records to use in a single SOQL query?

   • AInteger
   • BList<Id>
   • CSet<Id>
   • DMap<Id, Account>
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4. 8foundation · easy

   How does bulkification help avoid governor limit exceptions in triggers?

   • ABy reducing the number of SOQL queries and DML statements to the minimum required
   • BBy disabling governor limits for the trigger
   • CBy using more heap memory to store records
   • DBy increasing the governor limits for the transaction
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5. 9application · medium

   A Salesforce developer is creating a trigger on the Contact object to perform validation and also update related Accounts. The team wants to follow best practices for maintainability. Which approach should the developer take?

   • ACreate a trigger that calls a single method in an Apex class, passing the trigger context variables.
   • BCreate two separate triggers on the same object, one for validation and one for the Account update.
   • CWrite all logic directly in the trigger body, including loops and DML statements.
   • DUse a workflow rule instead of a trigger for the Account update to keep the trigger simple.
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6. 10foundation · easy

   Which Apex trigger event is used to modify field values on records before they are inserted into the database?

   • Abefore update
   • Bbefore insert
   • Cafter delete
   • Dafter insert
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