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

Question 1

A JSP page contains a taglib directive whose uri attribute has the value dbtags. Which XML element within the web application deployment descriptor defines the associated TLD?

A. <taglib>
<uri>dbtags</uri>
<location>/WEB-INF/tlds/dbtags.tld</location>
</taglib>
B. <tld>
<uri>dbtags</uri>
<location>/WEB-INF/tlds/dbtags.tld</location>
</tld>
C. <taglib>
<taglib-uri>dbtags</taglib-uri>
<taglib-location>
/WEB-INF/tlds/dbtags.tld
</taglib-location>
</taglib>
D. <tld>
<tld-uri>dbtags</tld-uri>
<tld-location>/WEB-INF/tlds/dbtags.tld</tld-location>
</tld>

Question 2

You are building a dating web site. The client's date of birth is collected along with lots of other information. You have created an EL function with the signature: calcAge(java.util.Date):int and it is assigned to the name, age, in the namespace, funct. In one of your JSPs you need to print a special message to clients who are younger than 25. Which EL code snippet will return true for this condition?

A. ${funct:calcAge[client.birthDate] < 25}
B. ${funct:age(client.birthDate) < 25}
C. ${funct:age[client.birthDate] < 25}
D. ${funct:calcAge(client.birthDate) < 25}
E. ${calcAge[client.birthDate] < 25}
F. ${calcAge(client.birthDate) < 25}

Question 3

Which ensures that a JSP response is of type "text/plain"?

A. <% response.setMimeType("text/plain"); %>
B. <%@ page contentType="text/plain" %>
C. <%@ page pageEncoding="text/plain" %>
D. <% response.setEncoding("text/plain"); %>
E. <%@ page mimeType="text/plain" %>
F. <%@ page contentEncoding="text/plain" %>

Question 4

You need to create a servlet filter that stores all request headers to a database for all requests to the web application's home page "/index.jsp". Which HttpServletRequest method allows you to retrieve all of the request headers?

A. java.util.Enumeration getHeaderNames()
B. String[] getRequestHeaders()
C. java.util.Iterator getRequestHeaders()
D. java.util.Enumeration getRequestHeaders()
E. java.util.Iterator getHeaderNames()
F. String[] getHeaderNames()

Question 5

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. Using the stub approach allows you to design the application without using a Service Locator.
B. The Transfer Object will decrease data staleness.
C. The stub will increase network traffic.
D. In both cases, the JSPs can use EL expressions to get data.
E. The stub will increase the logic necessary in the JSPs.
F. Only the Transfer Object will need to use a Business Delegate.

Solutions: