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

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

2. You are building a web application that will be used throughout the European Union; therefore, it has significant internationalization requirements. You have been tasked to create a custom tag that generates a message using the java.text.MessageFormat class. The tag will take the resourceKey attribute and a variable number of argument attributes with the format, arg<N>. Here is an example use of this tag and its output:
<t:message resourceKey='diskFileMsg' arg0='MyDisk' arg1='1247' />
generates:
The disk "MyDisk" contains 1247 file(s).
Which Simple tag class definition accomplishes this goal of handling a variable number of tag attributes?

A) The Simple tag model does NOT support a variable number of attributes.
B) public class MessageTag extends SimpleTagSupport
implements DynamicAttributes {
private Map attributes = new HashMap();
public void putAttribute(String name, Object value) {
this.attributes.put(name, value);
}
// more tag handler methods
}
C) public class MessageTag extends SimpleTagSupport
implements VariableAttributes {
private Map attributes = new HashMap();
public void putAttribute(String name, Object value) {
this.attributes.put(name, value);
}
// more tag handler methods
}
D) public class MessageTag extends SimpleTagSupport
implements DynamicAttributes {
private Map attributes = new HashMap();
public void setDynamicAttribute(String uri, String name,
Object value) {
this.attributes.put(name, value);
}
// more tag handler methods
}
E) public class MessageTag extends SimpleTagSupport
implements VariableAttributes {
private Map attributes = new HashMap();
public void setVariableAttribute(String uri,
String name, Object value) {
this.attributes.put(name, value);
}
// more tag handler methods
}

3. A JSP page needs to instantiate a JavaBean to be used by only that page. Which two jsp:useBean attributes must be used to access this attribute in the JSP page? (Choose two.)

A) class
B) create
C) scope
D) id
E) type
F) name

4. Which two security mechanisms can be directed through a sub-element of the <user-dataconstraint> element in a web application deployment descriptor? (Choose two.)

A) confidentiality
B) authentication
C) data integrity
D) authorization

5. Which security mechanism uses the concept of a realm?

A) confidentiality
B) authentication
C) data integrity
D) authorization

Solutions: