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Oracle 1Z0-858 Exam Syllabus Topics:

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

1. For an HttpServletResponse response, which two create a custom header? (Choose two.)

A) response.setHeader(new HttpHeader("X-MyHeader", "34"));
B) response.setHeader(new ServletHeader("X-MyHeader", "34"));
C) response.setHeader("X-MyHeader", "34");
D) response.addHeader(new ServletHeader("X-MyHeader", "34"));
E) response.addHeader("X-MyHeader", "34");
F) response.addHeader(new HttpHeader("X-MyHeader", "34"));

2. Given this fragment from a Java EE deployment descriptor:
341.
<error-page>
342.
<exception-type>java.lang.Throwable</exception-type>
343.
<location>/mainError.jsp</location>
344.
</error-page>
345.
<error-page>
346.
<exception-type>java.lang.ClassCastException</exception-type>
347.
<location>/castError.jsp</location>
348.
</error-page>
If the web application associated with the fragment above throws a ClassCastException.
Which statement is true?

A) The container invokes castError.jsp.
B) The deployment descriptor is invalid.
C) The container invokes mainError.jsp.
D) Neither mainError.jsp nor castError.jsp is invoked.

3. Which element of a web application deployment descriptor <security-constraint> element is required?

A) <security-role>
B) <auth-method>
C) <realm-name>
D) <transport-guarantee>
E) <web-resource-collection>

4. Assume that a news tag library contains the tags lookup and item:
lookup Retrieves the latest news headlines and executes the tag body once for each headline. Exposes a NESTED page-scoped attribute called headline of type
com.example.Headline containing details for that headline.
item Outputs the HTML for a single news headline. Accepts an attribute info of type com.example.Headline containing details for the headline to be rendered.Which snippet of JSP code returns the latest news headlines in an HTML table, one per row?

A) <table>
<news:lookup>
<tr>
<td><news:item info="${headline}" /></td>
</tr>
</news:lookup>
</table>
B) <table>
<tr>
<news:lookup>
<td><news:item info="${headline}" /></td>
</news:lookup>
</tr>
</table>
C) <news:lookup />
<table>
<tr>
<td><news:item info="${headline}" /></td>
</tr>
</table>
D) <table>
<tr>
<td>
<news:lookup />
<news:item info="${headline}" />
</td>
</tr>
</table>

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) 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.
B) 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.
C) 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.
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: