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

1. 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 by the servlet to the JSP; furthermore, that JSP uses a custom tag and must also process this information. This information must NOT be accessible to any other servlet, JSP or session in the webapp. How can you accomplish this goal?

A) Store the data in a public instance variable in the servlet.
B) This CANNOT be done as the tag handler has no means to extract this data.
C) Add an attribute to the request object before using the request dispatcher.
D) Add an attribute to the context object before using the request dispatcher.

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

3. A custom JSP tag must be able to support an arbitrary number of attributes whose names are unknown when the tag class is designed. Which two are true? (Choose two.)

A) The echo tag handler must define the setAttribute(String key, String value) method.
B) The <body-content> element in the echo tag TLD must have the value JSP.
C) The class implementing the echo tag handler must implement the javax.servlet.jsp.tagext.DynamicAttributes interface.
D) The <dynamic-attributes>true</dynamic-attributes> element must appear in the echo tag TLD.
E) The class implementing the echo tag handler must implement the javax.servlet.jsp.tagext.IterationTag interface.

4. DRAG DROP
Click the Task button.
Place the events in the order they occur.

5. Given the security constraint in a DD:
101.
<security-constraint>
102.
<web-resource-collection>
103.
<web-resource-name>Foo</web-resource-name>
104.
<url-pattern>/Bar/Baz/*</url-pattern>
105.
<http-method>POST</http-method>
106.
</web-resource-collection>
107.
<auth-constraint>
108.
<role-name>DEVELOPER</role-name>
109.
</auth-constraint>
110.
</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 a GET on resources in the /Bar/Baz directory.
B) MANAGER can do a TRACE on any resource in the /Bar/Baz directory.
C) DEVELOPER 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 only a POST on resources in the /Bar/Baz directory.

Solutions: