SUN 310-083 real exam prep : Sun Certified Web Component Developer for J2EE 5

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SUN 310-083 Exam Syllabus Topics:

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

1. Users of your web application have requested that they should be able to set the duration of their sessions. So for example, one user might want a webapp to stay connected for an hour rather than the webapp's default of fifteen minutes; another user might want to stay connected for a whole day.
Furthermore, you have a special login servlet that performs user authentication and retrieves the User object from the database. You want to augment this code to set up the user's specified session duration.
Which code snippet in the login servlet will accomplish this goal?

A) User user = // retrieve the User object from the database
session.setDurationInterval(user.getSessionDuration());
B) User user = // retrieve the User object from the database
session.setMaxDuration(user.getSessionDuration());
C) User user = // retrieve the User object from the database
session.setMaxInactiveInterval(user.getSessionDuration());
D) User user = // retrieve the User object from the database
session.setInactiveInterval(user.getSessionDuration());
E) User user = // retrieve the User object from the database
session.setDuration(user.getSessionDuration());
F) User user = // retrieve the User object from the database
session.setMaxDurationInterval(user.getSessionDuration());

2. Which element of the web application deployment descriptor defines the servlet class associated with a servlet instance?

A) <class>
B) <servlet-class>
C) <webapp>
D) <servlet-mapping>
E) <codebase>
F) <servlet>

3. DRAG DROP
Click the Task button.
Given a servlet mapped to /control, place the correct URI segment returned as a String on the corresponding HttpServletRequest method call for the URI:
/myapp/control/processorder.

4. Given:
http://com.example/myServlet.jsp?num=one&num=two&num=three
Which two produce the output "one, two and three"? (Choose two.)

A) ${parameterValues["num"]["0"]}, ${parameterValues["num"]["1"]} and
$ {parameterValues["num"]["2"]}
B) ${paramValues["num"][0]}, ${paramValues["num"][1]} and ${paramValues["num"][2]}
C) ${param.num[0]}, ${param.num[1]} and ${param.num[2]}
D) ${param.num[0],[1] and [2]}
E) ${parameterValues.num[0]}, ${parameterValues.num[1]} and
$ {parameterValues.num[2]}
F) ${paramValues[0],[1] and [2]}
G) ${paramValues.num[0]}, ${paramValues.num[1]} and ${paramValues.num[2]}

5. You want to create a filter for your web application and your filter will implement javax.servlet.Filter.
Which two statements are true? (Choose two.)

A) Your filter class must implement a doFilter method that takes, among other things, an
HTTPServletRequest object and an HTTPServletResponse object.
B) Your filter class must also implement javax.servlet.FilterChain.
C) When your filter chains to the next filter, it should pass the same arguments it received in its doFilter method.
D) Your filter class must implement an init method and a destroy method.
E) The method that your filter invokes on the object it received that implements javax.servlet.FilterChain can invoke either another filter or a servlet.

Solutions: