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SUN 310-083 Exam Syllabus Topics:

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

Question 1

You want to create a valid directory structure for your Java EE web application, and your application uses tag files and a JAR file. Which three must be located directly in your WEB-
INF directory (NOT in a subdirectory of WEB-INF)? (Choose three.)

A. A directory called tags
B. A directory called lib
C. The JAR file
D. A directory called classes
E. A directory called TLDs
F. A directory called META-INF

Question 2

Which is a benefit of precompiling a JSP page?

A. It provides the ability to debug runtime errors in the application.
B. It avoids initialization on the first request.
C. It provides better performance on the first request for the JSP page.
D. It avoids execution of the _jspService method on the first request.

Question 3

Given:
1 1. <%
1 2. request.setAttribute("vals", new String[]{"1","2","3","4"});
1 3. request.setAttribute("index", "2");
1 4. %>
1 5. <%-- insert code here --%>
Which three EL expressions, inserted at line 15, are valid and evaluate to "3"? (Choose three.)

A. ${vals[vals[index-1]]}
B. ${vals}[index]
C. ${vals.(vals.index)}
D. ${vals[index]}
E. ${vals.2}
F. ${vals.index}
G. ${vals["2"]}

Question 4

Given a portion of a valid Java EE web application's directory structure:
MyApp
|
|-- File1.html
|
|-- Directory1
| |-- File2.html |
|-- META-INF
|-- File3.html
You want to know whether File1.html, File2.html, and/or File3.html will be directly accessible by your web client's browsers.
Which statement is true?

A. Only File1.html is directly accessible.
B. Only File2.html is directly accessible.
C. Only File1.html and File2.html are directly accessible.
D. Only File1.html and File3.html are directly accessible.
E. All three files are directly accessible.
F. Only File2.html and File3.html are directly accessible.
G. Only File3.html is directly accessible.

Question 5

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

Solutions: