PD1 Testing, Debugging & Deployment 5

Question 1

What is the role of the @isTest annotation in Apex?

Accepted Answer

It marks a class or method as a test that does not count toward org code limits

Answer

@isTest designates Apex code as test-only, excluding it from production code limits and preventing it from being called in non-test contexts.

Question 2

Which Salesforce tool lets you inspect the heap size, execution time, and line-by-line code path during an Apex debug session?

Accepted Answer

Log Inspector in Developer Console

Answer

The Developer Console's Log Inspector provides an execution overview, heap view, and timeline for analyzing debug logs.

Question 3

When writing a test for a batch Apex class, which method must you call to actually execute the batch logic synchronously within the test?

Accepted Answer

Database.executeBatch()

Answer

Database.executeBatch() is used inside Test.startTest()/Test.stopTest() to enqueue the batch, and Test.stopTest() forces synchronous execution.

Question 4

Which sandbox type can be refreshed most frequently — once every 1 day?

Accepted Answer

Developer Sandbox

Answer

Developer Sandboxes have a 1-day refresh interval, the shortest of all sandbox types, supporting rapid iteration.

Question 5

What does it mean when a deployment fails due to 'missing test coverage' for a specific Apex class?

Accepted Answer

Less than 75% of the class's lines are executed by any test in the org

Answer

Each Apex class (excluding test classes) must have at least 75% of its executable lines covered by test methods in the org.

(PD1) Salesforce Certified Platform Developer 1 Practice Test