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Oracle 1Z0-858 Exam Syllabus Topics:

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

1. Which two are valid and equivalent? (Choose two.)

A) <jsp:declaration>int i;</jsp:declaration>
B) <jsp:scriptlet>int i;</jsp:scriptlet>
C) <%! int i; %>
D) <%= int i; %>
E) <jsp:expr>int i;</jsp:expr>

2. You are building JSP pages that have a set of menus that are visible based on a user's security role. These menus are hand-crafted by your web design team; for example, the SalesManager role has a menu in the file /WEB-INF/html/sales-mgr-menu.html. Which JSP code snippet should be used to make this menu visible to the user?

A) <% if ( request.isUserInRole("SalesManager") ) { %> <%@ include file='/WEB-INF/html/sales-mgr-menu.html' %> <% } %>
B) <% if ( request.isUserInRole("SalesManager") ) { %> <jsp:include file='/WEB-INF/html/sales-mgr-menu.html' /> <% } %>
C) <jsp:if test='request.isUserInRole("SalesManager")'> <%@ include file='/WEB-INF/html/sales-mgr-menu.html' %> </jsp:if>
D) <jsp:if test='request.isUserInRole("SalesManager")'> <jsp:include file='/WEB-INF/html/sales-mgr-menu.html' /> </jsp:if>

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) The stub will increase the logic necessary in the JSPs.
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 network traffic.
E) Only the Transfer Object will need to use a Business Delegate.
F) Using the stub approach allows you to design the application without using a Service Locator.

4. You want to create a valid directory structure for your Java EE web application, and you want to put your web application into a WAR file called MyApp.war. Which two are true about the WAR file? (Choose two.)

A) At deploy time, Java EE containers add a file called MANIFEST.MF directly into the MyApp directory.
B) At deploy time, Java EE containers add a directory called META-INF directly into the MyApp directory.
C) It can instruct your Java EE container to verify, at deploy time, whether you have properly configured your application's classes.
D) At deploy time, Java EE containers add a directory call META-WAR directly into the MyApp directory.

5. Given a JSP page:
11.
<n:recurse>
12.
<n:recurse>
13.
<n:recurse>
14.
<n:recurse />
15.
</n:recurse>
16.
</n:recurse>
17.
</n:recurse>
The tag handler for n:recurse extends SimpleTagSupport.
Assuming an n:recurse tag can either contain an empty body or another n:recurse tag, which strategy allows the tag handler for n:recurse to output the nesting depth of the deepest n:recurse tag?

A) Start a counter at 1. Call getChildTags(). If it returns null, output the value of the counter. Otherwise, increment counter and continue from where getChildTags() is called. Skip processing of the body.
B) If the tag has a body, invoke the fragment for that body.Otherwise, start a counter at 1. Call getParent(). If it returns null, output the value of the counter Otherwise, increment the counter and continue from where getParent() is called.
C) Create a private non-static attribute in the tag handler class called count of type int initialized to 0. Increment count in the doTag method. If the tag has a body, invoke the fragment for that body. Otherwise, output the value of count.
D) It is impossible to determine the deepest nesting depth because it is impossible for tag handlers that extend SimpleTagSupport to communicate with their parent and child tags.

Solutions: