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

1. You are creating a content management system (CMS) with a web application front-end. The JSP that displays a given document in the CMS has the following general structure:
1.<%-- tag declaration --%>
2.<t:document> ...
11. <t:paragraph>... <t:citation docID='xyz' /> ...</t:paragraph> ...
99. </t:document>
The citation tag must store information in the document tag for the document tag to generate a reference section at the end of the generated web page.
The document tag handler follows the Classic tag model and the citation tag handler follows the Simple tag model. Furthermore, the citation tag could also be embedded in other custom tags that could have either the Classic or Simple tag handler model.
Which tag handler method allows the citation tag to access the document tag?

A) public void doTag() {
JspTag docTag = findAncestorWithClass(this, DocumentTag.class);
((DocumentTag)docTag).addCitation(this.docID);
}
B) public void doStartTag() {
Tag docTag = findAncestor(this, DocumentTag.class);
((DocumentTag)docTag).addCitation(this.docID);
}
C) public void doStartTag() {
JspTag docTag = findAncestorWithClass(this, DocumentTag.class);
((DocumentTag)docTag).addCitation(this.docID);
}
D) public void doTag() {
Tag docTag = findAncestor(this, DocumentTag.class);
((DocumentTag)docTag).addCitation(this.docID);
}

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

3. Which two are true concerning the objects available to developers creating tag files? (Choose two.)

A) The request and response objects are available implicitly.
B) The session object must be declared explicitly.
C) The output stream is available through the implicit outStream object.
D) The servlet context is available through the implicit servletContext object.
E) The JspContext for the tag file is available through the implicit jspContext object.

4. Given:
1.<% int[] nums = {42,420,4200};
2.request.setAttribute("foo", nums); %>
3.${5 + 3 lt 6}
4.${requestScope['foo'][0] ne 10 div 0}
5.${10 div 0}
What is the result?

A) Compilation or translation fails.
B) An exception is thrown.
C) true true
D) false true 0
E) true true Infinity
F) false true
G) false true Infinity

5. You are creating a JSP page to display a collection of data. This data can be displayed in several different ways so the architect on your project decided to create a generic servlet that generates a comma-delimited string so that various pages can render the data in different ways. This servlet takes on request parameter: objectID. Assume that this servlet is mapped to the URL pattern: /WEB-INF/data.
In the JSP you are creating, you need to split this string into its elements separated by commas and generate an HTML <ul> list from the data.
Which JSTL code snippet will accomplish this goal?

A) <c:import varReader='dataString' url='/WEB-INF/data'>
<c:param name='objectID' value='${currentOID}' />
</c:import>
<ul>
<c:forTokens items'${dataString.split(",")}' var='item'>
<li>${item}</li>
</c:forTokens>
</ul>
B) <c:import var='dataString' url='/WEB-INF/data'>
<c:param name='objectID' value='${currentOID}' />
</c:import>
<ul>
<c:forTokens items'${dataString.split(",")}' var='item'>
<li>${item}</li>
</c:forTokens>
</ul>
C) <c:import var='dataString' url='/WEB-INF/data'>
<c:param name='objectID' value='${currentOID}' />
</c:import>
<ul>
<c:forTokens items'${dataString}' delims=',' var='item'>
<li>${item}</li>
</c:forTokens>
</ul>
D) <c:import varReader='dataString' url='/WEB-INF/data'>
<c:param name='objectID' value='${currentOID}' />
</c:import>
<ul>
<c:forTokens items'${dataString}' delims=',' var='item'>
<li>${item}</li>
</c:forTokens>
</ul>

Solutions: