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

1. Given an EL function declared with:
11.
<function>
12.
<name>spin</name>
13.
<function-class>com.example.Spinner</function-class>
14.
<function-signature>
15.
java.lang.String spinIt()
16.
</function-signature>
17.
</function>
Which two are true? (Choose two.)

A) The function method must have the signature: public String spinIt().
B) The function method must have the signature: public String spin().
C) The function class must be named Spinner, and must be in the package com.example.
D) The function method must have the signature: public static String spinIt().
E) The method must be mapped to the logical name "spin" in the web.xml file.
F) The function method must have the signature public static String spin().

2. Click the Exhibit button. Given:
10.
<form action='create_product.jsp'>
11.
Product Name: <input type='text' name='prodName'/><br/>
12.
Product Price: <input type='text' name='prodPrice'/><br/>
13.
</form>
For a given product instance, which three jsp:setProperty attributes must be used to initialize its properties from the HTML form? (Choose three.)

A) reqParam
B) name
C) type
D) param
E) attribute
F) id
G) property

3. Given: http://com.example/myServlet.jsp?num=one&num=two&num=three Which two produce the output "one, two and three"? (Choose two.)

A) ${parameterValues.num[0]}, ${parameterValues.num[1]} and ${parameterValues.num[2]}
B) ${param.num[0],[1] and [2]}
C) ${paramValues["num"][0]}, ${paramValues["num"][1]} and ${paramValues["num"][2]}
D) ${paramValues[0],[1] and [2]}
E) ${parameterValues["num"]["0"]}, ${parameterValues["num"]["1"]} and ${parameterValues["num"]["2"]}
F) ${param.num[0]}, ${param.num[1]} and ${param.num[2]}
G) ${paramValues.num[0]}, ${paramValues.num[1]} and ${paramValues.num[2]}

4. Given the definition of MyObject and that an instance of MyObject is bound as a session attribute:
8.package com.example;
9.public class MyObject implements
10.
javax.servlet.http.HttpSessionBindingListener {
11.
// class body code here
12.
}
Which is true?

A) The unbound method of the MyObject instance is called when the session to which it is bound times out.
B) The valueUnbound method of the MyObject instance is called when the session to which it is bound times out.
C) The com.example.MyObject must be declared as a servlet event listener in the web application deployment descriptor.
D) Only a single instance of MyObject may exist within a session.

5. Which three are true about the HttpServletRequestWrapper class? (Choose three.)

A) An HttpServletRequestWrapper CANNOT be used on the request passed to the RequestDispatcher.include method.
B) An HttpServletRequestWrapper may modify the header of a request within an object implementing the javax.servlet.Filter interface.
C) An HttpServletRequestWrapper may be used only by a class implementing the javax.servlet.Filter interface.
D) The HttpServletRequestWrapper is an example of the Decorator pattern.
E) The HttpServletRequestWrapper can be used to extend the functionality of a servlet request.
F) A subclass of HttpServletRequestWrapper CANNOT modify the behavior of the getReader method.

Solutions: