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Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional Sample Questions:

1. You are building a dating web site. The client's date of birth is collected along with lots of other information. The Person class has a derived method, getAge():int, which returns the person's age calculated from the date of birth and today's date. In one of your JSPs you need to print a special message to clients within the age group of 25 through 35. Which two EL code snippets will return true for this condition? (Choose two.)

A) ${not client.age > 35 && client.age < 25}
B) ${client.age <= 35 && client.age >= 25}
C) ${client.age between 25 and 35}
D) ${client.age between [25,35]}
E) ${client.age in [25,35]}
F) ${client.age le 35 and client.age ge 25}

2. Your web application uses a simple architecture in which servlets handle requests and then forward to a JSP using a request dispatcher. You need to pass information calculated in the servlet to the JSP for view generation. This information must NOT be accessible to any other servlet, JSP or session in the webapp. Which two techniques can you use to accomplish this goal? (Choose two.)

A) Add parameters to the request object.
B) Use the pageContext object to add request attributes.
C) Add attributes on the request object.
D) Add attributes to the session object.
E) Add parameters to the JSP's URL when generating the request dispatcher.

3. Which two about WAR files are true? (Choose two.)

A) WAR files must be located in the web application library directory.
B) WAR files must contain the web application deployment descriptor.
C) WAR files must be created by using archive tools designed specifically for that purpose.
D) The web container must allow access to resources in JARs in the web application library directory.
E) The web container must serve the content of any META-INF directory located in a WAR file.

4. A web application uses the HttpSession mechanism to determine if a user is "logged in." When a user supplies a valid user name and password, an HttpSession is created for that user.
The user has access to the application for only 15 minutes after logging in. The code must determine how long the user has been logged in, and if this time is greater than 15 minutes, must destroy the HttpSession.
Which method in HttpSession is used to accomplish this?

A) getCreationTime
B) getLastAccessedTime
C) invalidateAfter
D) getMaxInactiveInterval

5. DRAG DROP
Click the Task button.
Place the appropriate element names on the left on the web application deployment descriptor on the right so that files ending in ".mpg" are associated with the MIME type "video/mpeg."

Solutions: