CSA Apex Programming 4

Question 1

What is the maximum batch size for Batch Apex execute() method?

Accepted Answer

200

Answer

The default and maximum batch size for the execute() method in Batch Apex is 200 records per batch.

Question 2

Which keyword allows an Apex class to be accessed from any namespace, including managed packages?

Accepted Answer

global

Answer

'global' is the most permissive access modifier and makes the class accessible across all namespaces and packages.

Question 3

What does the Database.insert() method return that insert DML statement does not?

Accepted Answer

A SaveResult array with success/error info per record

Answer

Database.insert() returns a list of Database.SaveResult objects with success status and errors for each record, allowing partial success.

Question 4

In a trigger, how do you access the old version of a record after an update?

Accepted Answer

Trigger.old

Answer

Trigger.old is a List of the old record versions available in update and delete triggers.

Question 5

Which SOQL clause is used to filter records in a parent-to-child relationship query?

Accepted Answer

WHERE Id IN (subquery)

Answer

Salesforce SOQL uses semi-joins with WHERE Id IN (SELECT ... FROM ...) to filter based on related records.

(CSA) Certified Salesforce Administrator Practice Test