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Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional Sample Questions:

1. Given:
3.public class MyTagHandler extends TagSupport {
4.public int doStartTag() {
5.// insert code here
6.// return an int
7.}
8.// more code here
...
18. }
There is a single attribute foo in the session scope.
Which three code fragments, inserted independently at line 5, return the value of the attribute? (Choose three.)

A) Object o = pageContext.getAttribute("foo", PageContext.SESSION_SCOPE);
B) Object o = pageContext.findAttribute("foo");
C) HttpSession s = pageContext.getSession(); Object o = s.getAttribute("foo");
D) Object o = pageContext.getAttribute("foo");
E) HttpServletRequest r = pageContext.getRequest(); Object o = r.getAttribute("foo");

2. Which two are characteristics of the Transfer Object design pattern? (Choose two.)

A) It increases the complexity of the design due to remote synchronization and version control issues.
B) It increases the complexity of the remote interface by removing coarse-grained methods.
C) It reduces network traffic by collapsing multiple remote requests into one.
D) It increases network performance introducing multiple fine-grained remote requests which return very small amounts of data.

3. In an n-tier application, which two invocations are typically remote, not local? (Choose two.)

A) Business Delegate to Service Locator
B) Controller to request object
C) Service Locator to JNDI
D) JSP to Transfer Object
E) Controller to Business Delegate
F) Transfer Object to Entity Bean

4. A session-scoped attribute is stored by a servlet, and then that servlet forwards to a JSP page. Which three jsp:useBean attributes must be used to access this attribute in the JSP page? (Choose three.)

A) beanName
B) name
C) type
D) bean
E) scope
F) id

5. For manageability purposes, you have been told to add a "count" instance variable to a critical JSP Document so that a JMX MBean can track how frequent this JSP is being invoked. Which JSP code snippet must you use to declare this instance variable in the JSP Document?

A) <%! int count = 0; %>
B) <jsp:scriptlet.declaration> int count = 0; <jsp:scriptlet.declaration>
C) <jsp:declaration> int count = 0; <jsp:declaration>
D) <jsp:declaration.instance> int count = 0; <jsp:declaration.instance>

Solutions:

Question # 1 Answer: A,B,C

Question # 2 Answer: A,C

Question # 3 Answer: C,F

Question # 4 Answer: C,E,F

Question # 5 Answer: C