Salesforce Updated PDI Exam Questions and Answers by zoey

A SOQL query can return the following data types:

Option A: sObject

Explanation: A SOQL query can return a single sObject when the query returns only one record.

Example:

Account acc = [SELECT Id, Name FROM Account WHERE Id = :accountId];

Option D: List

Explanation: A SOQL query can return a list of sObjects when multiple records are retrieved.

Example:

List contacts = [SELECT Id, Name FROM Contact WHERE AccountId = :accountId];

Option E: Integer

Explanation: When using aggregate functions like COUNT(), SOQL can return an Integer value.

Example:

Integer contactCount = [SELECT COUNT() FROM Contact WHERE AccountId = :accountId];

Why Other Options Are Incorrect:

Option B: Double

Aggregate functions like SUM() return Decimal, not Double.

When using Salesforce DX, developers need to enable the Dev Hub in their org to create and manage scratch orgs.

Option A: Dev Hub

Correct Answer.

Explanation:

The Dev Hub is a feature that must be enabled in a Salesforce org (usually in a Developer Edition or a production org).

It allows developers to create and manage scratch orgs using Salesforce DX commands.

Dev Hub is the central point for creating and managing your scratch orgs.

Option A: The Apex governor limits are reset for each iteration of the execute() method.

True.

Explanation:

In Batch Apex, each execution of the execute() method is a separate transaction.

Governor limits are reset at the start of each transaction.