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Unit-1: The Servlet Technology Model

Q4. Given an HttpServletRequest request and HttpServletResponse response,

which sets a cookie "username" with the value "joe" in a servlet?
A. request.addCookie("username", "joe")
B. request.setCookie("username", "joe")
C. response.addCookie("username", "joe")
D. request.addHeader(new Cookie("username", "joe"))
E. request.addCookie(new Cookie("username", "joe"))
F. response.addCookie(new Cookie("username", "joe"))
G. response.addHeader(new Cookie("username", "joe"))

Q5. 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

Q6. 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);

Q7. 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. }

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