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

1. Which JSP standard action can be used to import content from a resource called foo.jsp?

A) <jsp:include file='foo.jsp' />
B) <jsp:include>foo.jsp</jsp:include>
C) <jsp:include page='foo.jsp' />
D) <jsp:import file='foo.jsp' />
E) <jsp:import page='foo.jsp' />
F) <jsp:import>foo.jsp</jsp:import>

2. Which EL expression evaluates to the request URI?

A) ${requestURI}
B) ${pageContext.request.requestURI}
C) ${requestScope.requestURI}
D) ${request.requestURI}
E) ${requestScope.request.requestURI}
F) ${request.getURI}
G) ${request.URI}

3. Which is true about the web container request processing model?

A) A filter defined for a servlet must always forward control to the next resource in the filter chain.
B) The init method on a filter is called the first time a servlet mapped to that filter is invoked.
C) If the init method on a filter throws an UnavailableException, then the container will make no further attempt to execute it.
D) Filters associated with a named servlet are applied in the order they appear in the web application deployment descriptor file.

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

5. Given an HttpServletRequest request and an HttpServletResponse response:
4 1. HttpSession session = null;
4 2. // insert code here
4 3. if(session == null) {
4 4. // do something if session does not exist
4 5. } else {
4 6. // do something if session exists
4 7. }
To implement the design intent, which statement must be inserted at line 42?

A) session = request.getSession();
B) session = request.getSession(false);
C) session = request.getSession("jsessionid");
D) session = request.getSession(true);
E) session = response.getSession();

Solutions: