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SUN 310-083 Exam Syllabus Topics:

SUN Sun Certified Web Component Developer for J2EE 5 Sample Questions:

1. You need to store a floating point number, called Tsquare, in the session scope. Which two code snippets allow you to retrieve this value? (Choose two.)

A) float Tsquare = ((Float) session.getFloatAttribute.("Tsquare")).floatValue;
B) float Tsquare = session.getFloatAttribute("Tsquare");
C) float Tsquare = ((Float) session.getAttribute.("Tsquare")).floatValue();
D) float Tsquare = (Float) session.getAttribute("Tsquare");
E) float Tsquare = ((Float) session.getNumericAttribute.("Tsquare")).floatValue;
F) float Tsquare = (float) session.getNumericAttribute("Tsquare");

2. Which EL expression evaluates to the request URI?

A) ${pageContext.request.requestURI}
B) ${request.requestURI}
C) ${request.URI}
D) ${requestScope.requestURI}
E) ${request.getURI}
F) ${requestURI}
G) ${requestScope.request.requestURI}

3. Given:
1 0. public void service(ServletRequest request,
1 1. ServletResponse response) {
1 2. ServletInputStream sis =
1 3. // insert code here
1 4. }
Which retrieves the binary input stream on line 13?

A) request.getInputStream();
B) request.getResourceAsStream();
C) request.getResourceAsStream(ServletRequest.REQUEST);
D) request.getWriter();
E) request.getReader();

4. Your company has a corporate policy that prohibits storing a customer's credit card number in any corporate database. However, users have complained that they do NOT want to re- enter their credit card number for each transaction. Your management has decided to use client-side cookies to record the user's credit card number for 120 days. Furthermore, they also want to protect this information during transit from the web browser to the web container; so the cookie must only be transmitted over HTTPS. Which code snippet creates the "creditCard" cookie and adds it to the out going response to be stored on the user's web browser?

A) 10. Cookie c = new Cookie("creditCard", usersCard);
1 1. c.setHttps(true);
1 2. c.setAge(10368000);
1 3. response.addCookie(c);
B) 10. Cookie c = new Cookie("creditCard", usersCard);
1 1. c.setSecure(true);
1 2. c.setMaxAge(10368000);
1 3. response.addCookie(c);
C) 10. Cookie c = new Cookie("creditCard", usersCard);
1 1. c.setHttps(true);
1 2. c.setMaxAge(10368000);
1 3. response.setCookie(c);
D) 10. Cookie c = new Cookie("creditCard", usersCard);
1 1. c.setSecure(true);
1 2. c.setAge(10368000);
1 3. response.addCookie(c);
E) 10. Cookie c = new Cookie("creditCard", usersCard);
1 1. c.setSecure(true);
1 2. c.setAge(10368000);
1 3. response.setCookie(c);

5. Given this fragment from a Java EE deployment descriptor:
1 24. <welcome-file>beta.html</welcome-file>
1 25. <welcome-file>alpha.html</welcome-file>
And this request from a browser:
http://www.sun.com/SCWCDtestApp/register
Which statement is correct, when the container receives this request?

A) The container first looks in the register directory for beta.html.
B) The container first looks for a servlet mapping in the deployment descriptor.
C) This deployment descriptor is NOT valid.
D) The container first looks in the register directory for alpha.html.

Solutions: