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

1. A developer is designing the presentation tier for a web application which requires a centralized request handling to complete common processing required by each request. Which design pattern provides a solution to this problem?

A) Data Access Object
B) Service Activator
C) Intercepting Filter
D) Front Controller
E) Remote Proxy
F) Business Delegate

2. Which two statements are true about the security-related tags in a valid Java EE deployment descriptor? (Choose two.)

A) Every <security-constraint> tag must have at least one <http-method> tag.
B) A given <web-resource-collection> tag can contain from zero to many <url-pattern> tags.
C) A <security-constraint> tag can have many <web-resource-collection> tags.
D) It is possible to construct a valid <security-constraint> tag such that, for a given resource, no user roles can access that resource.
E) A given <auth-constraint> tag can apply to only one <web-resource-collection> tag.

3. You have built a web application with tight security. Several directories of your webapp are used for internal purposes and you have overridden the default servlet to send an HTTP 403 status code for any request that maps to one of these directories. During testing, the Quality Assurance director decided that they did NOT like seeing the bare response page generated by Firefox and Internet Explorer. The director recommended that the webapp should return a more user-friendly web page that has the same look-and-feel as the webapp plus links to the webapp's search engine. You have created this JSP page in the /WEB-INF/jsps/error403.jsp file. You do NOT want to alter the complex logic of the default servlet. How can you declare that the web container must send this JSP page whenever a 403 status is generated?

A) <error-page>
<status-code>403</status-code>
<url>/WEB-INF/jsps/error403.jsp</url>
</error-page>
B) <error-page>
<status-code>403</status-code>
<location>/WEB-INF/jsps/error403.jsp</location>
</error-page>
C) <error-page>
<error-code>403</error-code>
<url>/WEB-INF/jsps/error403.jsp</url>
</error-page>
D) <error-page>
<error-code>403</error-code>
<location>/WEB-INF/jsps/error403.jsp</location>
</error-page>

4. You are writing a JSP that includes scriptlet code to declare a List variable and initializes that variable to an ArrayList object. Which two JSP code snippets can you use to import these list types? (Choose two.)

A) <%@ import types='java.util.List' types='java.util.ArrayList' %>
B) <%@ page import='java.util.List,java.util.ArrayList' %>
C) <%! import java.util.*; %>
D) <%! import java.util.List; import java.util.ArrayList; %>
E) <%@ import types='java.util.List,java.util.ArrayList' %>
F) <%@ page import='java.util.List'
import='java.util.ArrayList' %>

5. Your web application requires the ability to load and remove web files dynamically to the web container's file system. Which two HTTP methods are used to perform these actions? (Choose two.)

A) REMOVE
B) DESTROY
C) POST
D) DELETE
E) PUT
F) SEND

Solutions: