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

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 TLDs
B) The JAR file
C) A directory called lib
D) A directory called classes
E) A directory called tags
F) A directory called META-INF

2. Your web application views all have the same header, which includes the <title> tag in the <head> element of the rendered HTML. You have decided to remove this redundant HTML code from your JSPs and put it into a single JSP called /WEB-INF/jsp/header.jsp. However, the title of each page is unique, so you have decided to use a variable called pageTitle to parameterize this in the header JSP, like this: 10. <title>${param.pageTitle}<title>
Which JSP code snippet should you use in your main view JSPs to insert the header and pass the pageTitle variable?

A) <jsp:include page='/WEB-INF/jsp/header.jsp'>
<jsp:param name='pageTitle' value='Welcome Page' />
</jsp:include>
B) <jsp:insert page='/WEB-INF/jsp/header.jsp'>
<jsp:param name='pageTitle' value='Welcome Page' />
</jsp:insert>
C) <jsp:insert page='/WEB-INF/jsp/header.jsp'>
${pageTitle='Welcome Page'}
</jsp:insert>
D) <jsp:include file='/WEB-INF/jsp/header.jsp'>
${pageTitle='Welcome Page'}
</jsp:include>
E) <jsp:include page='/WEB-INF/jsp/header.jsp'>
${pageTitle='Welcome Page'}
</jsp:include>

3. Your IT department is building a lightweight Front Controller servlet that invokes an application logic object with the interface:
public interface ApplicationController {
public String invoke(HttpServletRequest request)
}
The return value of this method indicates a symbolic name of the next view. From this name, the Front Controller servlet looks up the JSP URL in a configuration table. This URL might be an absolute path or a path relative to the current request. Next, the Front Controller servlet must send the request to this JSP to generate the view. Assume that the servlet variable request is assigned the current HttpServletRequest object and the variable context is assigned the webapp's ServletContext.
Which code snippet of the Front Controller servlet accomplishes this goal?

A) Dispatcher view = context.getDispatcher(viewURL); view.forwardRequest(request, response);
B) Dispatcher view = request.getDispatcher(viewURL); view.forwardRequest(request, response);
C) RequestDispatcher view = context.getRequestDispatcher(viewURL); view.forward(request, response);
D) RequestDispatcher view = request.getRequestDispatcher(viewURL);
view.forward(request, response);

4. Which two security mechanisms can be directed through a sub-element of the <user-dataconstraint> element in a web application deployment descriptor? (Choose two.)

A) authentication
B) data integrity
C) authorization
D) confidentiality

5. Which is true about the web container request processing model?

A) A filter defined for a servlet must always forward control to the next resource in the filter chain.
B) Filters associated with a named servlet are applied in the order they appear in the web application deployment descriptor file.
C) The init method on a filter is called the first time a servlet mapped to that filter is invoked.
D) If the init method on a filter throws an UnavailableException, then the container will make no further attempt to execute it.

Solutions: