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SUN 310-083 Exam Syllabus Topics:

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

Question 1

The Squeaky Bean company has decided to port their web application to a new J2EE 1.4 container. While reviewing the application, a developer realizes that in multiple places within the current application, nearly duplicate code exists that finds enterprise beans.
Which pattern should be used to eliminate this duplicate code?

A. Transfer Object
B. Service Locator
C. Front Controller
D. Intercepting Filter
E. Business Delegate
F. Model-View-Controller

Question 2

If you want to use the Java EE platform's built-in type of authentication that uses a custom
HTML page for authentication, which two statements are true? (Choose two.)

A. You must have a tag in your deployment descriptor that allows you to point to both a login HTML page and an HTML page for handling any login errors.
B. The related custom HTML login page must be named loginPage.html.
C. When you use this type of authentication, SSL is turned on automatically.
D. In the HTML related to authentication for this application, you must use predefined variable names for the variables that store the user and password values.
E. Your deployment descriptor will need to contain this tag:
< auth-method>CUSTOM</auth-method>.

Question 3

You need to create a JSP that generates some JavaScript code to populate an array of strings used on the client-side. Which JSP code snippet will create this array?

A. MY_ARRAY = new Array();
< % for ( int i = 0; i < serverArray.length; i++ ) {
MY_ARRAY[<%= i %>] = '<%= serverArray[i] %>';
} %>
B. MY_ARRAY = new Array();
< % for ( int i = 0; i < serverArray.length; i++ ) {
MY_ARRAY[${i}] = '${serverArray[i]}';
} %>
C. MY_ARRAY = new Array();
< % for ( int i = 0; i < serverArray.length; i++ ) { %>
MY_ARRAY[<%= i %>] = '<%= serverArray[i] %>';
< % } %>
D. MY_ARRAY = new Array();
< % for ( int i = 0; i < serverArray.length; i++ ) { %>
MY_ARRAY[${i}] = '${serverArray[i]}';
< % } %>

Question 4

Which method must be used to encode a URL passed as an argument to
HttpServletResponse.sendRedirect when using URL rewriting for session tracking?

A. ServletResponse.encodeURL
B. ServletResponse.encodeRedirectURL
C. HttpServletResponse.encodeRedirectURL
D. HttpServletResponse.encodeURL

Question 5

You have created a servlet that generates weather maps. The data for these maps is calculated by a remote host. The IP address of this host is usually stable, but occasionally does have to change as the corporate network grows and changes. This IP address used to be hard coded, but after the fifth change to the IP address in two years, you have decided that this value should be declared in the deployment descriptor so you do NOT have the recompile the web application every time the IP address changes. Which deployment descriptor snippet accomplishes this goal?

A. <init-param>
< name>WeatherServlet.hostIP</name>
< value>127.0.4.20</value>
< /init-param>
B. <serlvet-param>
< param-name>WeatherServlet.hostIP</param-name>
< param-value>127.0.4.20</param-value>
< /servlet-param>
C. <serlvet-param>
< name>WeatherServlet.hostIP</name>
< value>127.0.4.20</value>
< /servlet-param>
D. <servlet>
< !-- servlet definition here -->
< param-name>WeatherServlet.hostIP</param-name>
< param-value>127.0.4.20</param-value>
< /servlet>
E. <init-param>
< param-name>WeatherServlet.hostIP</param-name>
< param-value>127.0.4.20</param-value>
< /init-param>

Solutions: