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Oracle 1Z0-858 Exam Syllabus Topics:

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

1. After a merger with another small business, your company has inherited a legacy WAR file but the original source files were lost. After reading the documentation of that web
application, you discover that the WAR file contains a useful tag library that you want to reuse in your own webapp packaged as a WAR file.
What do you need to do to reuse this tag library?

A) Unpack the legacy WAR file, move the TLD file to the META-INF directory, move the class files to the top-level directory, repackage the WAR, and place that WAR file in your webapp's WEB-INF directory.
B) Unpack the legacy WAR file, move the TLD file to the META-INF directory, move the class files to the top-level directory, repackage the whole thing as a JAR file, and place that JAR file in your webapp's library directory.
C) Unpack the legacy WAR file, move the TLD file to the META-INF directory, repackage the whole thing as a JAR file, and place that JAR file in your webapp's library directory.
D) Simply rename the legacy WAR file as a JAR file and place it in your webapp's library directory.

2. Given this fragment in a servlet:
23.
if(req.isUserInRole("Admin")) {
24.
// do stuff
25.
}
And the following fragment from the related Java EE deployment descriptor:
812.
<security-role-ref>
813.
<role-name>Admin</role-name>
814.
<role-link>Administrator</role-link>
815.
</security-role-ref>
900.
<security-role>
901.
<role-name>Admin</role-name>
902.
<role-name>Administrator</role-name>
903.
</security-role>
What is the result?

A) If line 24 executes, the user's role will be Administrator.
B) If line 24 executes, the user's role will be Admin.
C) The deployment descriptor is NOT valid.
D) If line 24 executes the user's role will NOT be predictable.
E) Line 24 can never be reached.

3. A developer is designing a multi-tier web application and discovers a need to log each incoming client request. Which two patterns, taken independently, provide a solution for this problem? (Choose two.)

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

4. Click the Exhibit button. Given:
11.
<% com.example.Advisor advisor = new com.example.Advisor(); %>
12.
<% request.setAttribute("foo", advisor); %>
Assuming there are no other "foo" attributes in the web application, which three are valid EL expressions for retrieving the advice property of advisor? (Choose three.)

A) ${request.foo.advice}
B) ${requestScope["foo"]["advice"]}
C) ${requestScope.foo.advice}
D) ${foo.advice}
E) ${requestScope["foo"["advice"]]}
F) ${requestScope[foo[advice]]}

5. Given:
11.
public class MyServlet extends HttpServlet {
12.
public void service(HttpServletRequest request,
13.
HttpServletResponse response)
14.
throws ServletException, IOException {
15.
// insert code here
16.
}
17.
}
and this element in the web application's deployment descriptor:
<error-page> <error-code>302</error-code> <location>/html/error.html</location> </error-page>
Which, inserted at line 15, causes the container to redirect control to the error.html resource?

A) response.sendRedirect(302);
B) response.sendError(302);
C) response.setError(302);
D) response.setStatus(302);
E) response.sendErrorRedirect(302);

Solutions: