Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional 認定 1Z0-858 試験問題:

1. You want to create a filter for your web application and your filter will implement javax.servlet.Filter.
Which two statements are true? (Choose two.)

A) When your filter chains to the next filter, it should pass the same arguments it received in its doFilter method.
B) Your filter class must also implement javax.servlet.FilterChain.
C) Your filter class must implement an init method and a destroy method.
D) The method that your filter invokes on the object it received that implements javax.servlet.FilterChain can invoke either another filter or a servlet.
E) Your filter class must implement a doFilter method that takes, among other things, an HTTPServletRequest object and an HTTPServletResponse object.

2. In which three directories, relative to a web application's root, may a tag library descriptor file reside when deployed directly into a web application? (Choose three.)

A) /META-INF/tlds
B) /META-INF
C) /WEB-INF
D) /WEB-INF/tlds
E) /WEB-INF/resources
F) /META-INF/resources

3. A custom JSP tag must be able to support an arbitrary number of attributes whose names are unknown when the tag class is designed. Which two are true? (Choose two.)

A) The class implementing the echo tag handler must implement the javax.servlet.jsp.tagext.DynamicAttributes interface.
B) The <body-content> element in the echo tag TLD must have the value JSP.
C) The class implementing the echo tag handler must implement the javax.servlet.jsp.tagext.IterationTag interface.
D) The <dynamic-attributes>true</dynamic-attributes> element must appear in the echo tag TLD.
E) The echo tag handler must define the setAttribute(String key, String value) method.

4. What is the purpose of session management?

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

5. You are creating an error page that provides a user-friendly screen whenever a server exception occurs. You want to hide the stack trace, but you do want to provide the
exception's error message to the user so the user can provide it to the customer service agent at your company. Which EL code snippet inserts this error message into the error page?

A) Message: <b>${exception.errorMessage}</b>
B) Message: <b>${request.exception.errorMessage}</b>
C) Message: <b>${pageContext.exception.errorMessage}</b>
D) Message: <b>${pageContext.exception.message}</b>
E) Message: <b>${exception.message}</b>
F) Message: <b>${request.exception.message}</b>

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