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

1. A developer wants to make a name attribute available to all servlets associated with a particular user, across multiple requests from that user, from the same browser instance.
Which two provide this capability from within a tag handler? (Choose two.)

A) pageContext.setAttribute("name", theValue, PageContext.SESSION_SCOPE);
B) pageContext.setAttribute("name", theValue);
C) pageContext.getSession().setAttribute("name", theValue);
D) pageContext.setAttribute("name", theValue, PageContext.PAGE_SCOPE);
E) pageContext.getRequest().setAttribute("name", theValue);
F) pageContext.setAttribute("name", getSession());

2. What is the purpose of session management?

A) To store information on the client-side between HTTP requests.
B) To manage the user's login and logout activities.
C) 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.
D) To store information on the server-side between HTTP requests.

3. You need to store a Java long primitive attribute, called customerOID, into the session scope. Which two code snippets allow you to insert this value into the session? (Choose two.)

A) long customerOID = 47L; session.setAttribute("customerOID", new Long(customerOID));
B) long customerOID = 47L; session.setLongAttribute("customerOID", customerOID);
C) long customerOID = 47L; session.setNumericAttribute("customerOID", new Long(customerOID));
D) long customerOID = 47L; session.setAttribute("customerOID", customerOID);
E) long customerOID = 47L; session.setNumericAttribute("customerOID", customerOID);
F) long customerOID = 47L; session.setLongAttribute("customerOID", new Long(customerOID));

4. Which statement is true about web container session management?

A) To activate URL rewriting, the developer must use the HttpServletResponse.setURLRewriting method.
B) If the web application uses HTTPS, then the web container may use the data on the HTTPS request stream to identify the client.
C) Access to session-scoped attributes is guaranteed to be thread-safe by the web container.
D) The JSESSIONID cookie is stored permanently on the client so that a user may return to the web application and the web container will rejoin that session.

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

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