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SUN 310-083 Exam Syllabus Topics:

SUN Sun Certified Web Component Developer for J2EE 5 Sample Questions:

1. Given:
6. <myTag:foo bar='42'>
7 . <%="processing" %>
8 . </myTag:foo>
and a custom tag handler for foo which extends TagSupport.
Which two are true about the tag handler referenced by foo? (Choose two.)

A) The doStartTag method is called once.
B) The SKIP_PAGE constant is a valid return value for the doStartTag method.
C) The doAfterBody method is NOT called.
D) The EVAL_PAGE constant is a valid return value for the doEndTag method.
E) The EVAL_BODY_BUFFERED constant is a valid return value for the doStartTag method.

2. For which three events can web application event listeners be registered? (Choose three.)

A) when a session has timed out
B) after a servlet is destroyed
C) when a cookie has been created
D) when a session is created
E) when a servlet has forwarded a request
F) when a session attribute value is changed

3. Which interface must a session attribute implement if it needs to be notified when a web container persists a session?

A) javax.servlet.http.HttpSessionBindingListener
B) javax.servlet.http.HttpSessionActivationListener
C) javax.servlet.http.HttpSessionAttributeListener
D) javax.servlet.http.HttpSessionListener

4. You are building a Front Controller using a JSP page and you need to determine if the user's session has NOT been created yet and perform some special processing for this case. Which scriptlet code snippet will perform this test?

A) <% if ( requestObject.getHttpSession(false) == null ) {
// special processing
} %>
B) <% if ( request.getHttpSession(false) == null ) {
// special processing
} %>
C) <% if ( request.getSession(false) == null ) {
// special processing
} %>
D) <% if ( requestObject.getSession(false) == null ) {
// special processing
} %>

5. Which two are characteristics of the Front Controller pattern? (Choose two.)

A) It reduces maintainability due to the increased complexity of the design.
B) It simplifies remote interfaces to distributed objects.
C) It provides loosely coupled handlers that can be combined in various permutations.
D) It provides an initial point of contact for handling all related requests.
E) It promotes cleaner application partitioning and encourages reuse.

Solutions: