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

1. A JSP page needs to set the property of a given JavaBean to a value that is calculated with the JSP page. Which three jsp:setProperty attributes must be used to perform this initialization? (Choose three.)

A) val
B) name
C) param
D) value
E) attribute
F) property
G) id

2. In which three directories, relative to a web application's root, may a tag library descriptor file reside when deployed directly into a web application? (Choose three.)

A) /WEB-INF
B) /WEB-INF/tlds
C) /WEB-INF/resources
D) /META-INF
E) /META-INF/resources
F) /META-INF/tlds

3. Click the Exhibit button. Given the web application deployment descriptor elements:
1 1. <filter>
1 2. <filter-name>ParamAdder</filter-name>
1 3. <filter-class>com.example.ParamAdder</filter-class>
1 4. </filter>
...
3 1. <filter-mapping>
3 2. <filter-name>ParamAdder</filter-name>
3 3. <servlet-name>Destination</servlet-name>
3 4. </filter-mapping>
...
5 5. <servlet-mapping>
5 6. <servlet-name>Destination</servlet-name>
5 7. <url-pattern>/dest/Destination</url-pattern>
5 8. </servlet-mapping>
What is the result of a client request of the Source servlet with no query string?

A) An exception is thrown at runtime within the service method of the Source servlet.
B) The output "filterAdded = null" is written to the response stream.
C) The output "filterAdded = addedByFilter" is written to the response stream.
D) An exception is thrown at runtime within the service method of the Destination servlet.

4. 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.

5. You have been contracted to create a web site for a free dating service. One feature is the ability for one client to send a message to another client, which is displayed in the latter client's private page. Your contract explicitly states that security is a high priority.
Therefore, you need to prevent cross-site hacking in which one user inserts JavaScript code that is then rendered and invoked when another user views that content. Which two
JSTL code snippets will prevent cross-site hacking in the scenario above? (Choose two.)

A) <c:out value='${message}' escapeXml='true' />
B) <c:out value='${message}' />
C) <c:out>${message}</c:out>
D) <c:out value='${message}' eliminateXml='true' />
E) <c:out eliminateXml='true'>${message}</c:out>

Solutions: