Plat-Dev-201 sample questions

Question 1

Universal Containers utilizes a strict multi-tenant environment. A developer is designing a complex Apex process that processes thousands of Opportunity records nightly. To ensure the logic does not monopolize shared resources and violate governor limits, which architectural pattern should be prioritized?

Accepted Answer

Utilize the Batchable interface to process records in smaller chunks, resetting governor limits for each transaction.

Answer

Bypass governor limits by using the "Without Sharing" keyword in the class definition.

Answer

Implement the logic within a standard trigger using synchronous execution to ensure immediate completion.

Answer

Use a @future method to process all records in a single asynchronous transaction.

Question 2

A developer needs to store a Many-to-Many relationship between `Candidate__c` and `Position__c`. The requirement dictates that if a Position is deleted, all associated application records linking it to Candidates should also be automatically deleted. However, deleting a Candidate should not delete the Position history. Which data model configuration satisfies this requirement?

Accepted Answer

Create a junction object `Application__c` with two Master-Detail relationships: one to `Position__c` and one to `Candidate__c`.

Answer

Create a generic parent object and use Indirect Lookup relationships for both `Candidate__c` and `Position__c`.

Answer

Create a junction object `Application__c` with a Lookup relationship to `Position__c` and a Master-Detail relationship to `Candidate__c`.

Answer

Create a junction object `Application__c` with two Lookup relationships and a Process Builder to handle deletion.

Question 3

Cloud Kicks is integrating an external ERP system with Salesforce. The ERP system sends nightly upserts of Product records. To prevent duplicate records and ensure efficient updates without querying Salesforce first, which field type should the developer configure on the Product object to act as a unique identifier for the upsert operation?

Accepted Answer

A Text field marked as 'Unique' and 'External ID'.

Answer

A Formula field concatenating the ERP ID and Date.

Answer

A Text Encrypted field.

Answer

A standard Auto-Number field.

Question 4

A developer is tasked with calculating the 'Total Sales Amount' on the Account object by aggregating the 'Amount' field from all related Closed Won Opportunities. The aggregation must happen in real-time. Which solution is most appropriate given the relationship type between Account and Opportunity?

Accepted Answer

Create a Roll-up Summary field on the Account object.

Answer

Write an After Insert/Update trigger on Opportunity to query and update the Account.

Answer

Create a cross-object Formula field on the Opportunity object.

Answer

Use a Scheduled Flow to calculate the total nightly.

Question 5

Agentforce is being implemented to assist service agents. A developer needs to expose a complex Apex calculation logic to an Agentforce Service Agent so the agent can invoke it during a conversation. Which annotation must be applied to the Apex method?

Accepted Answer

@InvocableMethod

Answer

@RemoteAction

Answer

@AuraEnabled

Answer

@AgentAction

Question 6

Which TWO scenarios would require a developer to use Apex instead of declarative tools (like Flow or Validation Rules)? (Select TWO)

Accepted Answer

Creating a custom web service REST API endpoint.

Accepted Answer

Performing complex logic involving a Map collection to de-duplicate a list of incoming records.

Answer

Validating that a field value is in the correct format using Regex.

Answer

Updating a field on a related record when a record is saved.

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