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

1. Which two are characteristics of the Transfer Object design pattern? (Choose two.)

A) It increases network performance introducing multiple fine-grained remote requests which return very small amounts of data.
B) It increases the complexity of the design due to remote synchronization and version control issues.
C) It reduces network traffic by collapsing multiple remote requests into one.
D) It increases the complexity of the remote interface by removing coarse-grained methods.

2. Which two statements are true about using the isUserInRole method to implement security in a Java EE application? (Choose two.)

A) Using the isUserInRole method overrides any declarative authorization related to the method in which it is invoked.
B) Using the isUserInRole method overrides any declarative authentication related to the method in which it is invoked.
C) It can be used independently of the getRemoteUser method.
D) Can return "true" even when its argument is NOT defined as a valid role name in the deployment descriptor.
E) It can be invoked only from the doGet or doPost methods.

3. A developer wants a web application to be notified when the application is about to be shut down. Which two actions are necessary to accomplish this goal? (Choose two.)

A) configure a listener in the TLD file using the <listener> element
B) include a class implementing HttpSessionAttributeListener as part of the web application deployment
C) configure a listener in the application deployment descriptor, using the <listener> element
D) include a class implementing ContextDestroyedListener as part of the web application deployment
E) include a listener directive in a JSP page
F) include a <servlet-destroy> element in the web application deployment descriptor
G) include a class implementing ServletContextListener as part of the web application deployment

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

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

Solutions: