Saturday, January 2, 2016

JSP 2.0 Test answers 2016.

JSP 2.0 Test answers 2016.

Find Complete and recently updated Correct Question and answers of JSP of Upwork. All Answers updated regularly with new questions. Upwork JSP answers of 2016.



Question:* If cookies are turned off on the client, which two methods still work with the session ID?

Answer: • encodeRedirectURL()

Answer: • sessionRedirectURL()

Answer: • encodeURL()

Question:* Which two of the following statements are best associated with the HTTPPOST method?

Answer: • There is no limit on how much data this HTTP method can send

Answer: • This method is most often used to submit form data

Question:* Which two statements among the following apply to redirecting a HTTP request to another URL?

Answer: • The path must be relative

Answer: • The redirect method must be called before the response body is committed, otherwise an IllegalStateException is thrown

Question:* Which of the following statements are true regarding the HTTP GET method?

Answer: • There is a limit on how much data this HTTP method can send

Answer: • This HTTP method is the fastest

Question:* Which of the following statements are true regarding declaring a servlet instance in a deployment descriptor?

Answer: • The tags are nested within <web-app> tags

Answer: • It specifies the fully qualified class name of the servlet

Question:* Which of the following statements are true regarding the structure of a WebArchive file?

Answer: • It has a war extension

Answer: • It is extracted by the container upon the first call to any�servlet it contains

Question:* With regard to the service() lifecycle method, identify two correct statements about its purpose or about how and when it is invoked.

Answer: • It is called whenever the servlet is requested

Answer: • It is called after the init method is called

Question:* 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?

Answer: • The taglib directive can reference a TLD by name

Question:* Which method is called by the servlet container just after the servlet is removed from service?

Answer: • public void destroy() {// code...}

Question:* Which statement is true regarding ServletContext Initialization Parameters in the deployment descriptor?

Answer: • They are accessible by all servlets in a given container

Question:* Which method in the HttpServlet class corresponds to the HTTPPOST method?

Answer: • doPost

Question:* What is the file name of the WebApp deployment descriptor?

Answer: • web.xml

Question:* What is the WebApp deployment descriptor element name for the Servlet Context Initialization Parameters?

Answer: • <init-param>

Question:* With regard to the destroy lifecycle method, identify the correct statements about its purpose or about how and when it is invoked.

Answer: • It gives the servlet an opportunity to clean up resources

Question:* How would you use a bean in a JSP page?

Answer: • <jsp:useBean id="houseLotBean" scope="session" class="session.Realestate"/>

Question:* Which of the following is the name of the cookie used by Servlet Containers to maintain session information?

Answer: • JSESSIONID

Question:* Which design pattern reduces network traffic by acting as a caching proxy of a remote object?

Answer: • Value Object

Question:* 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?

Answer: • <yourLibrary:whatColorlslt color="red"/>

Question:* What output will be sent to the browser by the following code snippet? <!-- Que <%="Reader"%> -->

Answer: • This is a comment so it is ignored by the container

Question:* Which of the following are used by Servlet Containers to maintain session information?

Answer: • URL rewriting

Question:* 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?

Answer: • </libraryPrefix:handlerName>

Question:* In which directory do you place any auxiliary JAR files?

Answer: • WEB-INF/jar

Question:* Which statements are true regarding ServletContext Init Parameters in the deployment descriptor?

Answer: • They are set at deployment-time and can be updated at run-time

Question:* With regard to the servlet context listener, which of the following methods is valid?

Answer: • contextListenerInitialized

Question:* Assuming the servlet method for handling HTTPGET requests is doGet(HttpServletRequest req, HTTPServletResponse res), how do you get a request parameter in that servlet?

Answer: • String value=req.getParameter("product");

Question:* Assume the custom tag is GLOOP and the prefix is TWONG. Which of the following is the syntax for an empty custom tag?

Answer: • <TWONG:GLOOP/>

Question:* Which of the following is not a JSP implicit object?

Answer: • in

Question:* Which of the following is the listener interface for servlet context attributes?

Answer: • ServletContextListener

Question:* What is Template Data?

Answer: • The plain text (such as HTML) outside JSP tags(non java) in a JSP page

Question:* Which of the following options is a valid declaration?

Answer: • <%! String name="Patricia" %>

Question:* Which of following interfaces can make a servlet thread safe?

Answer: • synchronization

Question:* Which statement is true regarding a servlet context listener?

Answer: • An object that implements a context listener is notified when its Web App context is created or destroyed

Question:* Which of the following options is a valid expression?

Answer: • <%=(new java.util.Date()).toLocaleString() %>

Question:* What does the container do with the following code snippet? <!--#include file="somefile.html"-->

Answer: • The container passes this line of code through to the client

Question:* Which method in the HttpServlet class corresponds to the HTTPPUT method?

Answer: • put

Question:* Which of the following is a JSP implicit object?

Answer: • request

Question:* Which design pattern is used to decouple presentation from core data access functionality?

Answer: • DataAccess Object

Question:* In which directory do you place servlet class files?

Answer: • WEB-INF\classes

Question:* Which design pattern did technical designers of JSP use to provide centralized dispatching of requests via a controller servlet?

Answer: • Model-view-Controller

Question:* Which interface and method name should be used to retrieve HTTP request header information?

Answer: • HttpServletRequest.getHeaderNames

Question:* Which interface provides access to request scoped attributes?

Answer: • ServletContext

Question:* Which JSP action retrieves the value of a property from a properly declared JavaBean in a JSP page?

Answer: • jsp:getProperty

Question:* 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?

Answer: • response.sendError(HTTPServletResponse.SC_FORBIDDEN,"Error");

Question:* Which interface and method name should be used to acquire a text stream for the response?

Answer: • ServletResponse.getOutputStream

Question:* Which among the following objects is the best choice to share information between pages for a single user?

Answer: • request



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