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

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SUN 310-083 Exam Syllabus Topics:

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

1. Squeaky Beans Inc. hired an outside consultant to develop their web application. To finish the job quickly, the consultant created several dozen JSP pages that directly communicate with the database. The Squeaky business team has since purchased a set of business objects to model their system, and the Squeaky developer charged with maintaining the web application must now refactor all the JSPs to work with the new system. Which pattern can the developer use to solve this problem?

A) Intercepting Filter
B) Transfer Object
C) Business Delegate
D) Service Locator

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

3. A web application uses the HttpSession mechanism to determine if a user is "logged in."
When a user supplies a valid user name and password, an HttpSession is created for that user.
The user has access to the application for only 15 minutes after logging in. The code must determine how long the user has been logged in, and if this time is greater than 15 minutes, must destroy the HttpSession.
Which method in HttpSession is used to accomplish this?

A) getMaxInactiveInterval
B) getLastAccessedTime
C) invalidateAfter
D) getCreationTime

4. Your web page includes a Java SE v1.5 applet with the following declaration:
1 1. <object classid='clsid:CAFEEFAC-0015-0000-0000-ABCDEFFEDCBA'
1 2. width='200' height='200'>
1 3. <param name='code' value='Applet.class' />
1 4. </object>
Which HTTP method is used to retrieve the applet code?

A) RETRIEVE
B) POST
C) GET
D) PUT

5. Which statement is true about web container session management?

A) Access to session-scoped attributes is guaranteed to be thread-safe by the web container.
B) If the web application uses HTTPS, then the web container may use the data on the
HTTPS request stream to identify the client.
C) To activate URL rewriting, the developer must use the
HttpServletResponse.setURLRewriting method.
D) The JSESSIONID cookie is stored permanently on the client so that a user may return to the web application and the web container will rejoin that session.

Solutions: