SCWCD Questions 71- 80

QUESTION NO: 71


Your web page includes a Java SE v1.5 applet with the following declaration:
11. <object classid='clsid:CAFEEFAC-0015-0000-0000-ABCDEFFEDCBA'
12. width='200' height='200'>
13. <param name='code' value='Applet.class' />
14. </object>
Which HTTP method is used to retrieve the applet code?
A. GET
B. PUT
C. POST
D. RETRIEVE

Answer: A


QUESTION NO: 72


You are creating a servlet that generates stock market graphs. You want to provide the web
browser with precise information about the amount of data being sent in the response stream.
Which two HttpServletResponse methods will you use to provide this information? (Choose two.)
A. response.setLength(numberOfBytes);
B. response.setContentLength(numberOfBytes);
C. response.setHeader("Length", numberOfBytes);
D. response.setIntHeader("Length", numberOfBytes);
E. response.setHeader("Content-Length", numberOfBytes);
F. response.setIntHeader("Content-Length", numberOfBytes);

Answer: B,F


QUESTION NO: 73


You need to retrieve the username cookie from an HTTP request. If this cookie does NOT exist,
then the c variable will be null. Which code snippet must be used to retrieve this cookie object?

A. 10. Cookie c = request.getCookie("username");
B. 10. Cookie c = null;
11. for ( Iterator i = request.getCookies();
12. i.hasNext(); ) {
13. Cookie o = (Cookie) i.next();
14. if ( o.getName().equals("username") ) {
15. c = o;
16. break;
17. }
18. }
C. 10. Cookie c = null;
11. for ( Enumeration e = request.getCookies();
12. e.hasMoreElements(); ) {
13. Cookie o = (Cookie) e.nextElement();
14. if ( o.getName().equals("username") ) {
15. c = o;
16. break;
17. }
18. }
D. 10. Cookie c = null;
11. Cookie[] cookies = request.getCookies();
12. for ( int i = 0; i < cookies.length; i++ ) {
13. if ( cookies[i].getName().equals("username") ) {
14. c = cookies[i];
15. break;
16. }
17. }

Answer: D


QUESTION NO: 74


Given:
10. public void service(ServletRequest request,
11. ServletResponse response) {
12. ServletInputStream sis =
13. // insert code here
14. }
Which retrieves the binary input stream on line 13?
A. request.getWriter();
B. request.getReader();
C. request.getInputStream();
D. request.getResourceAsStream();
E. request.getResourceAsStream(ServletRequest.REQUEST);

Answer: C


QUESTION NO: 75


Click the Exhibit button.
As a maintenance feature, you have created this servlet to allow you to upload and remove files
on your web server. Unfortunately, while testing this servlet, you try to upload a file using an HTTP
request and on this servlet, the web container returns a 404 status.
What is wrong with this servlet?

A. HTTP does NOT support file upload operations.

B. The servlet constructor must NOT have any parameters.

C. The servlet needs a service method to dispatch the requests to the helper methods.

D. The doPut and doDelete methods do NOT map to the proper HTTP methods.

Answer: B

QUESTION NO: 76

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>

<error-code>403</error-code>

<url>/WEB-INF/jsps/error403.jsp</url>

</error-page>

B. <error-page>

<status-code>403</status-code>

<url>/WEB-INF/jsps/error403.jsp</url>

</error-page>

C. <error-page>

<error-code>403</error-code>

<location>/WEB-INF/jsps/error403.jsp</location>

</error-page>

D. <error-page>

<status-code>403</status-code>

<location>/WEB-INF/jsps/error403.jsp</location>

</error-page>

Answer: C

QUESTION NO: 77

You want to create a valid directory structure for your Java EE web application, and your

application uses tag files and a JAR file. Which three must be located directly in your WEB-INF

directory (NOT in a subdirectory of WEB-INF)? (Choose three.)

A. The JAR file

B. A directory called lib

C. A directory called tags

D. A directory called TLDs

E. A directory called classes

F. A directory called META-INF

Answer: B,C,E

QUESTION NO: 78

Given:

11. public class MyServlet extends HttpServlet {

12. public void service(HttpServletRequest request,

13. HttpServletResponse response)

14. throws ServletException, IOException {

15. // insert code here

16. }

17. }

and this element in the web application's deployment descriptor:

<error-page>

<error-code>302</error-code>

<location>/html/error.html</location>

</error-page>

Which, inserted at line 15, causes the container to redirect control to the error.html resource?

A. response.setError(302);

B. response.sendError(302);

C. response.setStatus(302);

D. response.sendRedirect(302);

E. response.sendErrorRedirect(302);

Answer: B

QUESTION NO: 79

Which element of the web application deployment descriptor defines the servlet class associated

with a servlet instance?

A. <class>

B. <webapp>

C. <servlet>

D. <codebase>

E. <servlet-class>

F. <servlet-mapping>

Answer: E

QUESTION NO: 80

Within the web application deployment descriptor, which defines a valid JNDI environment entry?

A. <env-entry>

<env-entry-type>java.lang.Boolean</env-entry-type>

<env-entry-value>true</env-entry-value>

</env-entry>

B. <env-entry>

<env-entry-name>param/MyExampleString</env-entry-name>

<env-entry-value>This is an Example</env-entry-value>

</env-entry>

C. <env-entry>

<env-entry-name>param/MyExampleString</env-entry-name>

<env-entry-type>int</env-entry-type>

<env-entry-value>10</env-entry-value>

</env-entry>

D. <env-entry>

<env-entry-name>param/MyExampleString</env-entry-name>

<env-entry-type>java.lang.String</env-entry-type>

<env-entry-value>This is an Example</env-entry-value>

</env-entry>

Answer: D