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

1. Which two statements are true about the security-related tags in a valid Java EE deployment descriptor? (Choose two.)

A) A given <auth-constraint> tag can apply to only one <web-resource-collection> tag.
B) It is possible to construct a valid <security-constraint> tag such that, for a given resource, no user roles can access that resource.
C) A <security-constraint> tag can have many <web-resource-collection> tags.
D) Every <security-constraint> tag must have at least one <http-method> tag.
E) A given <web-resource-collection> tag can contain from zero to many <url-pattern> tags.

2. 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

3. 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 VariableAttributes {
private Map attributes = new HashMap();
public void setVariableAttribute(String uri,
String name, Object value) {
this.attributes.put(name, value);
}
// more tag handler methods
}
C) 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
}
D) 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
}
E) 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
}

4. Which two directives are applicable only to tag files? (Choose two.)

A) include
B) tag
C) taglib
D) variable
E) page

5. You are building a dating service web site. Part of the form to submit a client's profile is a group of radio buttons for the person's hobbies:
20.
<input type='radio' name='hobbyEnum' value='HIKING'>Hiking <br>
21.
<input type='radio' name='hobbyEnum' value='SKIING'>Skiing <br>
22.
<input type='radio' name='hobbyEnum' value='SCUBA'>SCUBA Diving
23.
<!-- and more options -->
After the user submits this form, a confirmation screen is displayed with these hobbies listed. Assume that an application-scoped variable, hobbies, holds a map between the Hobby enumerated type and the display name.
Which EL code snippet will display Nth element of the user's selected hobbies?

A) ${hobbies[paramValues@'hobbyEnum'@N]}
B) ${hobbies[paramValues.hobbyEnum.get(N)]}
C) ${hobbies[paramValues.hobbyEnum[N]]}
D) ${hobbies[hobbyEnum[N]}
E) ${hobbies.get(paramValues.hobbyEnum[N])}

Solutions: