On your JSF page, you have a form in which you have a command button: A user submits the form by clicking the button, and no errors occur while processing the request. Which statement is true?

Question

Options

• AThe actNow() and ListenCarefully() methods are executed in parallel.
• BThe listenCarefully() method is executed followed by the actNow() method.
• CThe actNow() method controls the condition upon which the listenCarefully() method is allowed to
• DThe actNow method is executed followed by the listenCarefully() method.

• A
  10% (2)
• B
  86% (18)
• C
  5% (1)

Explanation

In JSF, when a commandButton has both an actionListener attribute (pointing to listenCarefully()) and an action attribute (pointing to actNow()), the JSF lifecycle guarantees that action listeners always fire before the action method - making B correct. This is by design: listeners are meant to intercept and pre-process the event before the main business logic executes.

A is wrong because JSF request processing is strictly sequential - nothing runs in parallel within a single lifecycle. D is wrong because it reverses the actual order; the action method is always last. C is wrong because actNow() (the action) does not gate or condition the execution of listenCarefully() (the listener) - the listener runs unconditionally first regardless of what the action does.

Memory tip: Think "Listen before you Act" - actionListener → action, always in that order.

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