Please answer me this question.

[Kang Dae Chul]

QUESTION 96
Place the startup steps in the order in which they are performed before a web application may start servicing client requests.

- Initialize filters defined in the web application deployment descriptor.
- Instantiate listeners defined in the web application deployment descriptor.
- Initialize Servlets to load on startup in the web application deployment descriptor.
- The contextinitialized method is called on listeners implementing Servlet ContextListener which have been instantiated.

[Frederic Esnault]

When you deploy a webapp, the following steps happen in this order BEFORE any client request is processed :

Instantiate an instance of each event listener identified by a <listener> element in the deployment descriptor;

For listener instances that implement ServletContextListener, call the contextInitialized() method.

Instantiate an instance of each filter identified by a <filter> element in the deployment descriptor and call each filter instance�s init() method.

Instantiate an instance of each servlet identified by a <servlet> element that includes a <load-on-startup> element in the order defined by the load-onstartup element values, and call each servlet instance�s init() method.

This is something you SHOULD know for the exam. When you have this in mind, answer to your question is very clear :

3 - Initialize filters defined in the web application deployment descriptor.
1 - Instantiate listeners defined in the web application deployment descriptor.
4 - Initialize Servlets to load on startup in the web application deployment descriptor.
2 - The contextinitialized method is called on listeners implementing Servlet ContextListener which have been instantiated.