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

1. You have built a collection of custom tags for your web application. The TLD file is located in the file: /WEB-INF/myTags.xml. You refer to these tags in your JSPs using the symbolic name: myTags. Which deployment descriptor element must you use to make this link between the symbolic name and the TLD file name?

A) <taglib>
<name>myTags</name>
<location>/WEB-INF/myTags.xml</location>
</taglib>
B) <tags>
<name>myTags</name>
<location>/WEB-INF/myTags.xml</location>
</tags>
C) <tags>
<tags-uri>myTags</taglib-uri>
<tags-location>/WEB-INF/myTags.xml</tags-location>
</tags>
D) <taglib>
<taglib-uri>myTags</taglib-uri>
<taglib-location>/WEB-INF/myTags.xml</taglib-location>
</taglib>

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

3. Which two prevent a servlet from handling requests? (Choose two.)

A) The servlet's init method returns a non-zero status.
B) The servlet's init method throws a ServletException.
C) The servlet's init method does NOT return within a time period defined by the servlet container.
D) The servlet's init method sets the ServletResponse's content type to null.
E) The servlet's init method sets the ServletResponse's content length to 0.

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

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

5. You are building a dating web site. The client's date of birth is collected along with lots of other information. You have created an EL function with the signature: calcAge(java.util.Date):int and it is assigned to the name, age, in the namespace, funct. In one of your JSPs you need to print a special message to clients who are younger than 25. Which EL code snippet will return true for this condition?

A) ${funct:age(client.birthDate) < 25}
B) ${funct:age[client.birthDate] < 25}
C) ${calcAge[client.birthDate] < 25}
D) ${funct:calcAge[client.birthDate] < 25}
E) ${calcAge(client.birthDate) < 25}
F) ${funct:calcAge(client.birthDate) < 25}

Solutions: