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Exam Code: 1Z0-858
Exam Name: Java Enterprise Edition 5 Web Component Developer Certified Professional Exam
Updated: Aug 24, 2026
Q & A: 276 Questions and Answers
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| Section | Objectives |
|---|---|
| Servlet Technology | - Servlet lifecycle and architecture - Filters and listeners - Request and response handling - Session management |
| JavaServer Pages (JSP) | - Custom tags and JSTL - Expression Language (EL) - JSP syntax and lifecycle |
| Web Application Design and Architecture | - Deployment descriptors (web.xml) - Model-View-Controller (MVC) pattern |
| Web Application Deployment | - Packaging and deployment of WAR files - Application server configuration |
| Web Application Security | - Authentication and authorization - Declarative security |
Question 1
You want to create a valid directory structure for your Java EE web application, and your application uses tag files and a JAR file. Which three must be located directly in your WEBINF directory (NOT in a subdirectory of WEB-INF)? (Choose three.)
A. A directory called META-INF
B. A directory called tags
C. A directory called lib
D. A directory called TLDs
E. The JAR file
F. A directory called classes
Question 2
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 var='dataString' url='/WEB-INF/data'>
<c:param name='objectID' value='${currentOID}' />
</c:import>
<ul>
<c:forTokens items'${dataString}' delims=',' var='item'>
<li>${item}</li>
</c:forTokens>
</ul>
B. <c:import var='dataString' url='/WEB-INF/data'>
<c:param name='objectID' value='${currentOID}' />
</c:import>
<ul>
<c:forTokens items'${dataString.split(",")}' var='item'>
<li>${item}</li>
</c:forTokens>
</ul>
C. <c:import varReader='dataString' url='/WEB-INF/data'>
<c:param name='objectID' value='${currentOID}' />
</c:import>
<ul>
<c:forTokens items'${dataString.split(",")}' var='item'>
<li>${item}</li>
</c:forTokens>
</ul>
D. <c:import varReader='dataString' url='/WEB-INF/data'>
<c:param name='objectID' value='${currentOID}' />
</c:import>
<ul>
<c:forTokens items'${dataString}' delims=',' var='item'>
<li>${item}</li>
</c:forTokens>
</ul>
Question 3
Assume the tag handler for a st:simple tag extends SimpleTagSupport. In what way can scriptlet code be used in the body of st:simple?
A. add a pass-through Classic tag with a body content type of JSP to the body of st:simple, and place the scriptlet code in the body of that tag
B. add scripting-enabled="true" to the start tag for the st:simple element
C. set the body content type to JSP in the TLD
D. Scriptlet code is NOT legal in the body of st:simple.
Question 4
Which two statements about tag files are true? (Choose two.)
A. If files foo1.tag and foo2.tag both reside in /WEB-INF/tags/bar, the container will consider them part of the same tag library.
B. A file named foo.tag, located in /WEB-INF/tags/bar, is recognized as a tag file by the container.
C. Classic tag handlers and tag files CANNOT reside in the same tag library.
D. A file named foo.tag, bundled in a JAR file but NOT defined in a TLD, triggers a container translation error.
E. A file named foo.tag, located in a web application's root directory, is recognized as a tag file by the container.
Question 5
You have built a web application with tight security. Several directories of your webapp are used for internal purposes and you have overridden the default servlet to send an HTTP 403 status code for any request that maps to one of these directories. During testing, the Quality Assurance director decided that they did NOT like seeing the bare response page generated by Firefox and Internet Explorer. The director recommended that the webapp should return a more user-friendly web page that has the same look-and-feel as the webapp plus links to the webapp's search engine. You have created this JSP page in the /WEB-INF/jsps/error403.jsp file. You do NOT want to alter the complex logic of the default servlet. How can you declare that the web container must send this JSP page whenever a 403 status is generated?
A. <error-page>
<status-code>403</status-code>
<url>/WEB-INF/jsps/error403.jsp</url>
</error-page>
B. <error-page>
<error-code>403</error-code>
<location>/WEB-INF/jsps/error403.jsp</location>
</error-page>
C. <error-page>
<status-code>403</status-code>
<location>/WEB-INF/jsps/error403.jsp</location>
</error-page>
D. <error-page>
<error-code>403</error-code>
<url>/WEB-INF/jsps/error403.jsp</url>
</error-page>
Solutions:
| Question 1 Answer: B,C,F | Question 2 Answer: A | Question 3 Answer: D | Question 4 Answer: A,B | Question 5 Answer: B |
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