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

1. Given:
String value = getServletContext().getInitParameter("foo");
in an HttpServlet and a web application deployment descriptor that contains:
<context-param>
<param-name>foo</param-name>
<param-value>frodo</param-value>
</context-param>
Which two are true? (Choose two.)

A) Compilation fails because getInitParameter returns type Object.
B) The foo initialization parameter can also be retrieved using getServletConfig().getInitParameter("foo").
C) Compilation fails because ServletContext does NOT have a getInitParameter method.
D) The foo initialization parameter CANNOT be set programmatically.
E) The foo parameter must be defined within the <servlet> element of the deployment descriptor.
F) The foo initialization parameter is NOT a servlet initialization parameter.

2. The Squeaky Bean company has decided to port their web application to a new J2EE 1.4 container. While reviewing the application, a developer realizes that in multiple places within the current application, nearly duplicate code exists that finds enterprise beans. Which pattern should be used to eliminate this duplicate code?

A) Business Delegate
B) Intercepting Filter
C) Model-View-Controller
D) Front Controller
E) Transfer Object
F) Service Locator

3. Given:
6.<% int[] nums = {42, 420, 4200};
7.request.setAttribute("foo", nums); %>
Which two successfully translate and result in a value of true? (Choose two.)

A) ${requestScope[foo][0] > 500}
B) ${true or false}
C) ${(requestScope['foo'][0] lt 50) && (3 gt 2)}
D) ${requestScope['foo'][1] = 420}

4. Given:
3.class MyServlet extends HttpServlet {
4.public void doPut(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
5.// servlet code here ...
26.
}
27.
}
If the DD contains a single security constraint associated with MyServlet and its only <httpmethod> tags and <auth-constraint> tags are:
<http-method>GET</http-method>
<http-method>PUT</http-method>
<auth-constraint>Admin</auth-constraint>
Which four requests would be allowed by the container? (Choose four.)

A) A user whose role is Member can perform a PUT.
B) A user whose role is Admin can perform a GET.
C) A user whose role is Member can perform a GET.
D) A user whose role is Admin can perform a POST.
E) A user whose role is Member can perform a POST.
F) A user whose role is Admin can perform a PUT.

5. What is the purpose of session management?

A) To tell the web container to keep the HTTP connection alive so it can make subsequent requests without the delay of making the TCP connection.
B) To store information on the client-side between HTTP requests.
C) To manage the user's login and logout activities.
D) To store information on the server-side between HTTP requests.

Solutions: