CSA Apex Programming 5

Question 1

Which Apex interface must be implemented to use Database.executeBatch()?

Accepted Answer

Database.Batchable

Answer

A class must implement Database.Batchable<sObject> to be executed with Database.executeBatch().

Question 2

What is the purpose of the @testSetup annotation in Apex test classes?

Accepted Answer

Creates test data once and rolls it back after each test method

Answer

@testSetup creates test data once for the class and rolls back changes between individual test methods to improve test performance.

Question 3

What does the 'without sharing' keyword do when applied to an Apex class?

Accepted Answer

Runs the class in system mode ignoring the user's sharing rules

Answer

'without sharing' runs the class in system mode, ignoring the running user's sharing rules and accessing all records.

Question 4

Which Apex data type is used to store a reference to a Salesforce record ID?

Accepted Answer

Id

Answer

The Id data type is a specialized 18-character string type designed to store Salesforce record IDs with built-in validation.

Question 5

What is the correct way to prevent a SOQL query from being inside a for loop in a trigger?

Accepted Answer

Use a List to collect IDs, then query outside the loop

Answer

Best practice is to collect all needed IDs into a collection first, then execute a single SOQL query outside the loop.

(CSA) Certified Salesforce Administrator Practice Test