Oracle 1Z0-858 : Java Enterprise Edition 5 Web Component Developer Certified Professional Exam

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

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

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

2. Servlet A forwarded a request to servlet B using the forward method of RequestDispatcher. What attribute in B's request object contains the URI of the original request received by servlet A?

A) javax.servlet.forward.request_uri
B) javax.servlet.forward.REQUEST_URI
C) REQUEST_URI
D) javax.servlet.request_dispatcher.request_uri
E) javax.servlet.request_dispatcher.REQUEST_URI

3. You are designing an n-tier Java EE application. You have already decided that some of your JSPs will need to get data from a Customer entity bean. You are trying to decide
whether to use a Customer stub object or a Transfer Object. Which two statements are true? (Choose two.)

A) Only the Transfer Object will need to use a Business Delegate.
B) The Transfer Object will decrease data staleness.
C) In both cases, the JSPs can use EL expressions to get data.
D) The stub will increase the logic necessary in the JSPs.
E) The stub will increase network traffic.
F) Using the stub approach allows you to design the application without using a Service Locator.

4. Assume the scoped attribute priority does NOT yet exist. Which two create and set a new request-scoped attribute priority to the value "medium"? (Choose two.)

A) <c:set var="priority" value="medium" scope="request" />
B) <c:set property="priority" value="medium" scope="request" />
C) <c:set property="priority" scope="request">medium</c:set>
D) ${priority = 'medium'}
E) <c:set var="priority" value="medium" />
F) ${requestScope['priority'] = 'medium'}
G) <c:set var="priority" scope="request">medium</c:set>

5. What is true about Java EE authentication mechanisms?

A) To use Java EE FORM authentication, you must declare two HTML files in your deployment descriptor, and you must use a predefined action in the HTML file that handles your user's login.
B) If your deployment descriptor correctly declares an authentication type of CLIENT_CERT, your users must have a certificate from an official source before they can use your application.
C) If your deployment descriptor correctly declares an authentication type of BASIC, the container automatically requests a user name and password whenever a user starts a new session.
D) If you want your web application to support the widest possible array of browsers, and you want to perform authentication, the best choice of Java EE authentication mechanisms is DIGEST.

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