Online Random Test

Ques 3 : The major difference between servlet and CGI is

(A) Servlets executes slower compared to CGI

(B) Servlets are thread based and CGI is process based

(D) All of the above

Ques 4 :
Your web page includes a Java SE v1.5 applet with the following declaration:
<object classid='clsid:CAFEEFAC-0015-0000-0000-ABCDEFFEDCBA' width='200' height='200'>
<param name='code' value='Applet.class' />
</object>
Which HTTP method is used to retrieve the applet code?

(A) POST

(B) GET

(D) RETRIEVE

Ques 5 : what is servlet ?

(A) a

(B) b

(D) d

Ques 6 :
Given a header in an HTTP request: X-Retries: 4

Which two retrieve the value of the header from a given HttpServletRequest request?
A. request.getHeader("X-Retries")
B. request.getIntHeader("X-Retries")
C. request.getRequestHeader("X-Retries")
D. request.getHeaders("X-Retries").get(0)
E. request.getRequestHeaders("X-Retries").get(0)

(A) A,B,E

(B) D,E

(D) B,C,

Ques 7 : The method getWriter returns an object of type PrintWriter. This class has println methods to generate output. Which of these classes define the getWriter method? Select the one correct answer.

(A) HttpServletRequest

(B) ServletConfig

(D) ServletContext

Ques 8 :
Which two actions protect a resource file from direct HTTP access within a web application? (Choose two.)

A. placing it in the /secure directory
B. placing it in the /WEB-INF directory
C. placing it in the /META-INF/secure directory
D. creating a element within the deployment descriptor
E. creating a element within the deployment descriptor

(A) A,C

(B) D,E

(D) B,D

Ques 9 :
You need to create a servlet filter that stores all request headers to a
database for all requests to the web application's home page "/index.jsp". Which HttpServletRequest method allows you to retrieve all of the request headers?

(A) java.util.Iterator getRequestHeaders()

(B) java.util.Enumeration getHeaderNames()

(D) String[] getRequestHeaders()

Ques 10 : A servlet class that�??s used in a web application extends the

(A) HttpServlet class

(B) GenericServlet class

(D) only A

Ques 11 :
Which three are valid URL mappings to a servlet in a web deployment
descriptor? (Choose three.)

A. / B. .do
C. MyServlet D. /MyServlet
E. /MyServlet/ F. MyServlet/*.jsp

(A) A,D,B

(B) A,B,F

(D) D,E,F

Ques 12 :
For a given ServletResponse response, which retrieve an object for
writing text data?

(A) response.getOutputWriter()

(B) response.getWriter()

(D) response.getWriter(Writer.OUTPUT_TEXT)

Ques 13 :
Which about WAR files are true?

(A) WAR files must be located in the web application library directory.

(B) WAR files must contain the web application deployment descriptor.

(D) The web container must serve the content of any META-INF directory located in a WAR file.

Ques 14 :
Given the following servlet mapping definition for the web application named 'secureapp',
<servlet>
<servlet-name>ProcessLoginData</servlet-name>
<servlet-class>DoLogin</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ProcessLoginData</servlet-name>
<url-pattern>do/Login</url-pattern>
</servlet-mapping>
which of the following URLs will correctly request the Servlet?

(A) http://www.mywebapp.com/secureapp/do/Login?name="bob"

(B) http://www.mywebapp.com/secureapp/doLogin?name="bob"

(D) http://www.mywebapp.com/secureapp/Login?name="bob"

Ques 15 :
What's the difference between servlets and applets?

1.Servlets executes on Servers, where as Applets executes on Browser
2.Servlets have no GUI, where as an Applet has GUI
3.Servlets creates static web pages, where as Applets creates dynamic web pages
4.Servlets can handle only a single request, where as Applet can handle multiple requests

(A) 1,2 are correct

(B) 1,2,3 are correct

(D) 1,2,3,4 are correct

Ques 16 :
In which file do we define a servlet mapping?

(A) servlet.mappings

(B) servlet.xml

(D) Simple.java

Ques 17 :
Given an HttpServletRequest request and HttpServletResponse response,
which sets a cookie "username" with the value "joe" in a servlet?

(A) request.addCookie(new Cookie("username", "joe"));

(B) response.addCookie(new Cookie("username", "joe"));

(D) request.addCookie("username", "joe");

Ques 18 :
Given:
1. public void service(ServletRequest request,
2. ServletResponse response) {
3. ServletInputStream sis =
4. // insert code here
5. }
Which retrieves the binary input stream on line 4 ?

(A) request.getReader();

(B) request.getWriter();

(D) request.getInputStream();

Ques 19 :
Given an HttpSession session, a ServletRequest request, and a ServletContext context, which retrieves a URL to /WEB-INF/myconfig.xml within a web application?

(A) request.getResource("/WEB-INF/myconfig.xml")

(B) session.getResource("/WEB-INF/myconfig.xml")

(D) context.getResource("/WEB-INF/myconfig.xml")

Ques 1 :
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 HttpServletResponse methods will you use to provide this information?