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

1. Given:
1 0. public void service(ServletRequest request,
1 1. ServletResponse response) {
1 2. ServletInputStream sis =
1 3. // insert code here
1 4. }
Which retrieves the binary input stream on line 13?

A) request.getResourceAsStream();
B) request.getReader();
C) request.getWriter();
D) request.getInputStream();
E) request.getResourceAsStream(ServletRequest.REQUEST);

2. Assume the scoped attribute priority does NOT yet exist. Which two create and set a new request-scoped attribute priority to the value "medium"? (Choose two.)

A) ${priority = 'medium'}
B) ${requestScope['priority'] = 'medium'}
C) <c:set property="priority" scope="request">medium</c:set>
D) <c:set property="priority" value="medium" scope="request" />
E) <c:set var="priority" scope="request">medium</c:set>
F) <c:set var="priority" value="medium" />
G) <c:set var="priority" value="medium" scope="request" />

3. Which two from the web application deployment descriptor are valid? (Choose two.)

A) <error-page>
< exception-type>java.io.IOException</exception-type>
< location>/error.html</location>
< /error-page>
B) <error-page>
< exception-type>java.lang.Throwable</exception-type>
< location>/error.html</location>
< /error-page>
C) <error-page>
< exception-type>NullPointerException</exception-type>
< location>/error.html</location>
< /error-page>
D) <error-page>
< exception-type>*</exception-type>
< location>/error.html</location>
< /error-page>
E) <error-page>
< exception-type>java.lang.Error</exception-type>
< location>/error.html</location>
< /error-page>

4. To take advantage of the capabilities of modern browsers that use web standards, such as
XHTML and CSS, your web application is being converted from simple JSP pages to JSP
Document format. However, one of your JSPs, /scripts/screenFunctions.jsp, generates a
JavaScript file. This file is included in several web forms to create screen-specific validation functions and are included in these pages with the following statement:
1 0. <head>
1 1. <script src='/scripts/screenFunctions.jsp'
1 2. language='javascript'
1 3. type='application/javascript'> </script>
1 4. </head>
1 5. <!-- body of the web form -->
Which JSP code snippet declares that this JSP Document is a JavaScript file?

A) <jsp:directive.page contentType='application/javascript' />
B) No declaration is needed because the web form XHTML page already declares the
MIME type of the /scripts/screenFunctions.jsp file in the <script> tag.
C) <%@ page contentType='application/javascript' %>
D) <jsp:document contentType='application/javascript' />
E) <jsp:page contentType='application/javascript' />

5. You have a new IT manager that has mandated that all JSPs must be refactored to include no scritplet code. The IT manager has asked you to enforce this. Which deployment descriptor element will satisfy this constraint?

A) <jsp-config>
< url-pattern>*.jsp</url-pattern>
< scripting-invalid>true</scripting-invalid>
< /jsp-config>
B) <jsp-property-group>
< url-pattern>*.jsp</url-pattern>
< permit-scripting>false</permit-scripting>
< /jsp-property-group>
C) <jsp-property-group>
< url-pattern>*.jsp</url-pattern>
< scripting-invalid>true</scripting-invalid>
< /jsp-property-group>
D) <jsp-config>
< url-pattern>*.jsp</url-pattern>
< permit-scripting>false</permit-scripting>
< /jsp-config>

Solutions: