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SUN 310-083 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Servlet Technology Model | 15% | - Request and response handling - Servlet lifecycle - Servlet interface and methods |
| Web Container Model | 14% | - Servlet context attributes - Request dispatching - Container architecture and responsibilities |
| JSP Expression Language | 10% | - Functions and reserved words - Implicit variables and scope resolution - EL syntax and operators |
| Web Application Structure and Deployment | 12% | - Context parameters and initialization - WAR file structure - Deployment descriptor (web.xml) |
| Session Management | 12% | - Session attributes and listeners - URL rewriting, cookies, SSL - Session lifecycle and tracking |
| JSP Standard Actions and Custom Tags | 13% | - Tag Library Descriptor - Standard actions - Simple and Classic tag handlers |
| Web Application Security | 11% | - Authentication and authorization - Transport security - Declarative and programmatic security |
| JSP Technology Model | 13% | - Implicit objects - JSP lifecycle and translation - JSP elements and syntax |
SUN Sun Certified Web Component Developer for J2EE 5 Sample Questions:
1. Which two are valid and equivalent? (Choose two.)
A) <%= int i; %>
B) <%! int i; %>
C) <jsp:declaration>int i;</jsp:declaration>
D) <jsp:scriptlet>int i;</jsp:scriptlet>
E) <jsp:expr>int i;</jsp:expr>
2. Which is true about the web container request processing model?
A) If the init method on a filter throws an UnavailableException, then the container will make no further attempt to execute it.
B) Filters associated with a named servlet are applied in the order they appear in the web application deployment descriptor file.
C) A filter defined for a servlet must always forward control to the next resource in the filter chain.
D) The init method on a filter is called the first time a servlet mapped to that filter is invoked.
3. Given:
1 1. public class MyServlet extends HttpServlet {
1 2. public void service(HttpServletRequest request,
1 3. HttpServletResponse response)
1 4. throws ServletException, IOException {
1 5. // insert code here
1 6. }
1 7. }
and this element in the web application's deployment descriptor:
< error-page>
< error-code>302</error-code>
< location>/html/error.html</location>
< /error-page>
Which, inserted at line 15, causes the container to redirect control to the error.html resource?
A) response.sendRedirect(302);
B) response.sendError(302);
C) response.setError(302);
D) response.setStatus(302);
E) response.sendErrorRedirect(302);
4. 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 doAfterBody method is NOT called.
B) The doStartTag method is called once.
C) The SKIP_PAGE constant is a valid return value for the doStartTag method.
D) The EVAL_BODY_BUFFERED constant is a valid return value for the doStartTag method.
E) The EVAL_PAGE constant is a valid return value for the doEndTag method.
5. A developer has created a web application that includes a servlet for each use case in the application. These servlets have become rather difficult to maintain because the request processing methods have become very large. There is also common processing code in many servlets because these use cases are very similar. Which two design patterns can be used together to refactor and simplify this web application? (Choose two.)
A) Proxy
B) Business Delegate
C) View Helper
D) Front Controller
E) Session Facade
F) Model-View-Controller
Solutions:
| Question # 1 Answer: B,C | Question # 2 Answer: B | Question # 3 Answer: B | Question # 4 Answer: B,E | Question # 5 Answer: D,F |


