SUN SCWCD 310-083

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

1. Given the security constraint in a DD:
1 01. <security-constraint>
1 02. <web-resource-collection>
1 03. <web-resource-name>Foo</web-resource-name>
1 04. <url-pattern>/Bar/Baz/*</url-pattern>
1 05. <http-method>POST</http-method>
1 06. </web-resource-collection>
1 07. <auth-constraint>
1 08. <role-name>DEVELOPER</role-name>
1 09. </auth-constraint>
1 10. </security-constraint>
And given that "MANAGER" is a valid role-name, which four are true for this security constraint? (Choose four.)

A) DEVELOPER can do only a POST on resources in the /Bar/Baz directory.
B) DEVELOPER can do a TRACE on any resource in the /Bar/Baz directory.
C) MANAGER can do a TRACE on any resource in the /Bar/Baz directory.
D) MANAGER can do a POST on any resource in the /Bar/Baz directory.
E) MANAGER can do a GET on resources in the /Bar/Baz directory.
F) DEVELOPER can do a GET on resources in the /Bar/Baz directory.

2. Which two classes or interfaces provide a getSession method? (Choose two.)

A) javax.servlet.http.HttpSessionContext
B) javax.servlet.http.HttpSessionAttributeEvent
C) javax.servlet.http.HttpSessionBindingEvent
D) javax.servlet.http.HttpServletResponse
E) javax.servlet.http.HttpServletRequest

3. Given:
5 . public class MyTagHandler extends TagSupport {
6 . public int doStartTag() throws JspException {
7 . try {
8 . // insert code here
9 . } catch(Exception ex) { /* handle exception */ }
1 0. return super.doStartTag();
1 1. }
...
42. }
Which code snippet, inserted at line 8, causes the value foo to be output?

A) JspWriter w = pageContext.getWriter();
w.print("foo");
B) JspWriter w = new JspWriter(pageContext.getWriter());
w.print("foo");
C) JspWriter w = pageContext.getOut();
w.print("foo");
D) JspWriter w = new JspWriter(pageContext.getResponse());
w.print("foo");

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

5. Which implicit object is used in a JSP page to retrieve values associated with <context- param> entries in the deployment descriptor?

A) session
B) request
C) config
D) application

Solutions:

Question # 1 Answer: B,C,E,F

Question # 2 Answer: C,E

Question # 3 Answer: C

Question # 4 Answer: B

Question # 5 Answer: D