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

1. Which three are described in the standard web application deployment descriptor?
(Choose three.)

A) web container default port bindings
B) ServletContext initialization parameters
C) session configuration
D) servlet instance pool configuration
E) context root for the application
F) MIME type mappings

2. A developer is designing the presentation tier for a web application that relies on a complex session bean. The session bean is still being developed and the APIs for it are NOT finalized. Any changes to the session bean API directly impacts the development of the presentation tier. Which design pattern provides a means to manage the uncertainty in the
API?

A) Composite View
B) Chain of Responsibility
C) Business Delegate
D) View Helper
E) Intercepting Filter
F) Front Controller

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

4. Click the Exhibit button.
Assume the product attribute does NOT yet exist in any scope.
Which two create an instance of com.example.Product and initialize the name and price properties to the name and price request parameters? (Choose two.)

A) <jsp:useBean id="product" class="com.example.Product" />
< jsp:setProperty name="product" property="*" />
B) <jsp:useBean id="product" class="com.example.Product">
< jsp:setProperty name="product" property="name"
value="${name}" />
< jsp:setProperty name="product" property="price"
value="${price}" />
< /jsp:useBean>
C) <jsp:useBean id="product" class="com.example.Product" />
< jsp:setProperty name="product" property="name"
value="${param.name}" />
< jsp:setProperty name="product" property="price"
value="${param.price}" />
D) <jsp:useBean id="product" class="com.example.Product" />
< % product.setName( request.getParameter( "name" ) ); %>
< % product.setPrice( request.getParameter( "price" ) ); %>

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

Solutions: