Salesforce CRT-450 Exam With Confidence Using Practice Dumps

Option A: <apex:pageMessages />

Correct Answer.

Explanation:

The component displays all messages that were added to the ApexPages message list, including those added via ApexPages.addMessage().

Option A: Roll-up summary fields can cause the parent record to go through Save.

True.

When a child record changes, roll-up summary fields on the parent object are recalculated.

This causes the parent record to save, which can trigger triggers on the parent object.

To fire an exception in Apex, the developer must use the throw statement along with an instance of the exception.

Option A: throw new ParityException();

Correct Way.

Explanation:

Creates a new instance of ParityException with no message and throws it.

Syntax is correct for throwing an exception.

Option C: throw new ParityException('parity does not match');

Correct Way.

Explanation:

Creates a new instance of ParityException with a custom message and throws it.

The exception class inherits from Exception, which allows passing a message to the constructor.

Options Not Correct:

Option B: new ParityException('parity does not match');

Incorrect.

Explanation:

This statement creates a new instance of ParityException but does not throw it.

Without the throw keyword, the exception is not fired.

Option D: new ParityException();

Incorrect.

Explanation:

Similar to Option B, this creates a new instance but does not throw it.

The exception will not affect the flow unless it is thrown.

Conclusion:

The two ways the developer can fire the exception are:

Option A: throw new ParityException();

Option C: throw new ParityException('parity does not match');

Both use the throw statement to fire the exception.