oDesk JSP 2.0 Test 2015
·
1. Which two of the following
statements are best associated with the HTTPPOST method?
Answers:
• This HTTP
method is the one most frequently used by browsers
• There is no limit on how
much data this HTTP method can send
• There is a
limit on how much data this HTTP method can send
• This method is most often
used to submit form data
2. Which two statements among the
following apply to redirecting a HTTP request to another URL?
Answers:
• The path must
be absolute
• The path must be relative
• The redirect method must
be called before the response body is committed, otherwise an
IllegalStateException is thrown
• The path may be
relative or absolute
3. Which of the following statements
are true regarding the HTTP GET method?
Answers:
• There is a limit on how
much data this HTTP method can send
• There is no
limit on how much data this HTTP method can send
• This HTTP method is the
fastest
• This HTTP
method is used when you click on an HTML link
4. Which of the following statements
are true regarding declaring a servlet instance in a deployment descriptor?
Answers:
• The tags are nested within
<web-app> tags
• The tags do not
define parameters
• The tags are <servlet-instance></servlet-instance>
• It specifies the fully
qualified class name of the servlet
5. Which of the following statements
are true regarding the structure of a WebArchive file?
Answers:
• It has a jar
extension
• It is a JAR
archive of the WebApplication structure
• It has a war extension
• It is extracted by the
container upon the first call to any�servlet
it contains
6. With regard to the service()
lifecycle method, identify two correct statements about its purpose or about
how and when it is invoked.
Answers:
• Upon completion
it calls the destroy method
• It is called whenever the
servlet is requested
• It is called after the
init method is called
• It is only
called when the servlet is first requested
7. Which method is called by the servlet
container just after the servlet is removed from service?
Answers:
• public void
finalize() {// code...}
• public void destroy() {//
code...}
• public void
destroy()throws ServletException {// code...}
• public void finalize()throws
ServletException {// code...}
8. Which of the following is not a JSP
implicit object?
Answers:
• out
• in
• response
• page
9. Which JSP action retrieves the
value of a property from a properly declared JavaBean in a JSP page?
Answers:
• jsp:getProperty
•
jsp:getParameter
•
jsp:getAtrribute
• jsp:getValue
10. Suppose you had a servlet that
simply returned an error message because that resource was forbidden to that
user. Read the following code snippet:
1.public void service(HttpServletRequestrequest,
2.HttpServletResponseresponse)
3.throws ServletException, IOException
4. {
5.
6. }
What code would you type on line 5 to
return an error message to the requesting client?
Answers:
•
response.sendError(HTTPServletResponse.SC_FORBIDDEN,"Error");
•
response.setStatus(HTTPServletResponse.SC_FORBIDDEN,"Error");
•
response.sendError(Response.SC_FORBIDDEN,"Error");
•
response.setStatus(SC_FORBIDDEN);
11. Read the following code snippet
and answer the question based upon it:
<taglib>
<taglib-uri>
http://www.yourcompany.com/you TagLibrary
</taglib-uri>
<taglib-location>
/WEB-INF/yourTagLibrary.tld
</taglib-location>
</taglib>
From the statements given below, which
one applies to the code snippet?
Answers:
• The taglib
directive can reference a TLD by name
• This tag goes
into the WEB-INF/myApplication/web.xml file
• This definition is
incorrect because the taglib-uri should have been uri
• This definition
is incorrect because the taglib should have been tag
12. Which statement is true regarding
ServletContext Initialization Parameters in the deployment descriptor?
Answers:
• They are
accessible by all servlets in a given web application
• They are
accessible by all servlets in a given session
• They are accessible
by all servlets in a given HTTP request
• They are accessible by all
servlets in a given container
13. Which method in the HttpServlet
class corresponds to the HTTPPOST method?
Answers:
• postHttp
• doPost
• post
• getPost
14. What is the file name of the
WebApp deployment descriptor?
Answers:
• web.xml
• deploy.xml
• init.xml
• config.xml
15. What is the WebApp deployment
descriptor element name for the Servlet Context Initialization Parameters?
Answers:
•
<context-init-param>
•
<context-param>
• <init-param>
•
<context-init>
16. With regard to the destroy
lifecycle method, identify the correct statements about its purpose or about
how and when it is invoked.
Answers:
• It gives the servlet an
opportunity to clean up resources
• Like try-catch,
it is called upon an exception
• It is rarely
used but can be called to remove a servlet from memory
• It isn't called
if the server crashes
17. How would you use a bean in a JSP
page?
Answers:
• <jsp:useBean
name="houseLotBean" scope="response" class="session.Realestate"/>
• <jsp:useBean
id="houseLotBean" scope="session"><jsp:useBean>
• <jsp:useBean
id="houseLotBean" scope="session"
class="session.Realestate"/>
• <jsp:useBean
scope="session" class="session.Realestate"/>
18. Which of the following is the name
of the cookie used by Servlet Containers to maintain
session information?
Answers:
• SESSIONID
• SERVLETID
• JSESSIONID
• CONTAINERID
19. Which design pattern reduces
network traffic by acting as a caching proxy of a remote object?
Answers:
• DataAccess Object
•
Model-View-Controller
• Value Object
• Business
Delegate
20. Assuming the tag library is in
place and the tag handler is correct, which of the following is the correct way
to use a custom tag in a JSP page?
Answers:
•
<yourLibrary="whatColorlslt" color="red"/>
•
<yourLibrary:whatColorlslt color="red"/>
• <yourLibrary
color="red"/>
•
<yourLibrary.whatColorlslt color="red"/>
21. What output will be sent to the
browser by the following code snippet?
<!--
Que
<%="Reader"%>
-->
Answers:
• 'Que Reader'
within HTML comment markers
• This will cause
an error
• Que
<%="Reader"%> within HTML comment markers
• This is a comment so it is
ignored by the container
22. Which of the following are used by
Servlet Containers to maintain session information?
Answers:
• Cookies
• Hidden form
fields
• HTTPS protocol
information
• URL rewriting
23. Read the following code snippet:
1 <libraryPrefix:handlerName
parameterNAme="value">
2 <%=23*counter %>
3 <b>Congratulations!</b>
Which of the following is the correct
way to complete the above code snippet?
Answers:
•
</libraryPrefix:handlerName>
•
</libraryPrefix:handlerName paremeterName="value">
•
</handlerName>
•
<libraryPrefix>
24. In which directory do you place
any auxiliary JAR files?
Answers:
•
WEB-INF/servlets
• WEB-INF/jar
• WEB-INF/classes
• WEB-INF/lib
25. Which statements are true
regarding ServletContext Init Parameters in the deployment descriptor?
Answers:
• They are set at
deployment-time, but accessed at run-time
• They are
accessible from any session within that context
• They are not
set at deployment-time, but accessed at run-time
• They are set at
deployment-time and can be updated at run-time
26. With regard to the servlet context
listener, which of the following methods is valid?
Answers:
•
contextListenerEvent
• contextListenerInitialized
•
contextInitialized
•
contextListenerDestroyed
27. Assuming the servlet method for
handling HTTPGET requests is doGet(HttpServletRequest req, HTTPServletResponse
res), how do you get a request parameter in that servlet?
Answers:
• String
value=req.getInitParameter(10);
• String
value=req.getInitParameter("product");
• String
value=res.getParameter("product");
• String
value=req.getParameter("product");
28. Assume the custom tag is GLOOP and
the prefix is TWONG. Which of the following is the syntax for an empty custom
tag?
Answers:
• <TWONG:GLOOP/>
• <GLOOP:TWONG/>
•
<GLOOP:TWONG></GLOOP:TWONG>
•
<TWONG:GLOOP></TWONG:GLOOP>
29. Which of the following is the
listener interface for servlet context attributes?
Answers:
•
ContextAttributeListener
•
ServletContextAttributeListener
•
ServletAttributeListener
• ServletContextListener
30. What is Template Data?
Answers:
• The JSP
blueprint or pattern
• The plain text (such as
HTML) outside JSP tags(non java) in a JSP page
• The taglib XML
namespace
31. Which of the following options is
a valid declaration?
Answers:
• <%! String
name="Patricia" %>
• <%! String
name="Patricia"; %>
• <% String
name="Devyn" %>
• <% public
String name="Devyn"; %>
32. Which of following interfaces can
make a servlet thread safe?
Answers:
• Runnable
• synchronization
• Servlets can't
be made thread safe
• None of the above
33. Which statement is true regarding
a servlet context listener?
Answers:
• An object that
implements a context listener is notified when its request objects are created
or destroyed
• An object that implements
a context listener is notified when its Web App context is created or destroyed
• An object that
implements a context listener is notified when its Web App deployment
descriptor defines it to be notified
• An object that
implements a context listener is notified when its sessions are created or
destroyed
34. Which of the following options is
a valid expression?
Answers:
• <%! String
name="Patricia" %>
• <%! String
name="Patricia"; %>
• <%=(new
java.util.Date()).toLocaleString() %>
• <% public String
name="Devyn"; %>
35. What does the container do with
the following code snippet?
<!--#include
file="somefile.html"-->
Answers:
• The container passes this
line of code through to the client
• The container
includes this file statically
• The container
includes this file dynamically
• The container
will throw an exception
36. Which method in the HttpServlet
class corresponds to the HTTPPUT method?
Answers:
• put
• doPut
• httpPut
• putHttp
37. Which of the following is a JSP
implicit object?
Answers:
• objRequest
• Request.send
• request
• servlet
38. Which design pattern is used to
decouple presentation from core data access functionality?
Answers:
•
BusinessDelegate
• DataAccess Object
• ModelView
Controller
• Value Object
39. In which directory do you place
servlet class files?
Answers:
•
WEB-INF\servlets
• webapp\servlets
• WEB-INF\classes
• WEB-INF\
40. Which design pattern did technical
designers of JSP use to provide centralized dispatching of requests via a
controller servlet?
Answers:
• Model-view-Controller
• Facade
• Server-Client
•
Publish-Subscribe
41. Which interface and method name
should be used to retrieve HTTP request header information?
Answers:
•
HttpServletRequest.getHeaderNames
•
ServletRequest.getNames
• ServletRequest.getHeadNames
• None of the
above
42. Which interface provides access to
request scoped attributes?
Answers:
• ServletContext
• ServletRequest
• ServletConfig
• None of these
43. Which interface and method name
should be used to acquire a text stream for the response?
Answers:
•
ServletResponse.getOutputStream
•
ServletResponse.getWriterStream
•
ServletResponse.getTextStream
•
ServletResponse.getWriter
44. If cookies are turned off on the
client, which two methods still work with the session ID?
Answers:
•
response.getSessionId()
•
encodeRedirectURL()
• sessionRedirectURL()
• encodeURL()
45. Which among the following objects
is the best choice to share information between pages for a single user?
Answers:
• application
• page
• request
• session
