SUN 310-083 Exam Questions : Sun Certified Web Component Developer for J2EE 5

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SUN 310-083 Exam Syllabus Topics:

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

1. Your web application uses a simple architecture in which servlets handle requests and then forward to a JSP using a request dispatcher. You need to pass information calculated in the servlet to the JSP for view generation. This information must NOT be accessible to any other servlet, JSP or session in the webapp. Which two techniques can you use to accomplish this goal? (Choose two.)

A) Add parameters to the request object.
B) Add attributes on the request object.
C) Use the pageContext object to add request attributes.
D) Add parameters to the JSP's URL when generating the request dispatcher.
E) Add attributes to the session object.

2. 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
4 03 status is generated?

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

3. A developer is designing a multi-tier web application and discovers a need to hide the details of establishing and maintaining remote communications from the client. In addition, because the business and resource tiers are distributed, the application needs to minimize the inter-tier network traffic related to servicing client requests. Which design patterns, working together, address these issues?

A) Front Controller and Service Locator
B) Business Delegate and Intercepting Filter
C) Front Controller and Transfer Object
D) Model-View-Controller and Intercepting Filter
E) Business Delegate and Transfer Object

4. Which JSTL code snippet produces the output "big number" when X is greater than 42, but outputs "small number" in all other cases?

A) <c:if test='<%= (X > 42) %>'>
< c:then>big number</c:then>
< c:else>small number</c:else>
< /c:if>
B) <c:if>
< c:then test='<%= (X > 42) %>'>big number</c:then>
< c:else>small number</c:else>
< /c:if>
C) <c:choose test='<%= (X > 42) %>'>
< c:then>big number</c:when>
< c:else>small number</c:otherwise>
< /c:choose>
D) <c:choose test='<%= (X > 42) %>'>
< c:when>big number</c:when>
< c:otherwise>small number</c:otherwise>
< /c:choose>
E) <c:choose>
< c:when test='<%= (X > 42) %>'>big number</c:when>
< c:otherwise>small number</c:otherwise>
< /c:choose>

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

Solutions: