Oracle 1Z0-858 Exam : Java Enterprise Edition 5 Web Component Developer Certified Professional Exam

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Oracle 1Z0-858 Exam Syllabus Topics:

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

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

2. After a merger with another small business, your company has inherited a legacy WAR file but the original source files were lost. After reading the documentation of that web
application, you discover that the WAR file contains a useful tag library that you want to reuse in your own webapp packaged as a WAR file.
What do you need to do to reuse this tag library?

A) Unpack the legacy WAR file, move the TLD file to the META-INF directory, move the class files to the top-level directory, repackage the WAR, and place that WAR file in your webapp's WEB-INF directory.
B) Unpack the legacy WAR file, move the TLD file to the META-INF directory, repackage the whole thing as a JAR file, and place that JAR file in your webapp's library directory.
C) Unpack the legacy WAR file, move the TLD file to the META-INF directory, move the class files to the top-level directory, repackage the whole thing as a JAR file, and place that JAR file in your webapp's library directory.
D) Simply rename the legacy WAR file as a JAR file and place it in your webapp's library directory.

3. Given the web application deployment descriptor elements:
11.
<filter>
12.
<filter-name>ParamAdder</filter-name>
13.
<filter-class>com.example.ParamAdder</filter-class>
14.
</filter> ...
24.
<filter-mapping>
25.
<filter-name>ParamAdder</filter-name>
26.
<servlet-name>MyServlet</servlet-name>
27.
<!-- insert element here -->
28.
</filter-mapping>
Which element, inserted at line 27, causes the ParamAdder filter to be applied when MyServlet is invoked by another servlet using the RequestDispatcher.include method?

A) <filter-condition>include</filter-condition>
B) <include/>
C) <dispatcher>INCLUDE</dispatcher>
D) <dispatcher>include</dispatcher>
E) <filter-condition>INCLUDE</filter-condition>

4. You have a new IT manager that has mandated that all JSPs must be refactored to include no scritplet code. The IT manager has asked you to enforce this. Which deployment descriptor element will satisfy this constraint?

A) <jsp-config> <url-pattern>*.jsp</url-pattern> <scripting-invalid>true</scripting-invalid> </jsp-config>
B) <jsp-property-group> <url-pattern>*.jsp</url-pattern> <permit-scripting>false</permit-scripting> </jsp-property-group>
C) <jsp-config> <url-pattern>*.jsp</url-pattern> <permit-scripting>false</permit-scripting> </jsp-config>
D) <jsp-property-group> <url-pattern>*.jsp</url-pattern> <scripting-invalid>true</scripting-invalid> </jsp-property-group>

5. Assume a JavaBean com.example.GradedTestBean exists and has two attributes. The attribute name is of type java.lang.String and the attribute score is of type java.lang.Integer.
An array of com.example.GradedTestBean objects is exposed to the page in a requestscoped attribute called results. Additionally, an empty java.util.HashMap called resultMap is placed in the page scope.
A JSP page needs to add the first entry in results to resultMap, storing the name attribute of the bean as the key and the score attribute of the bean as the value.
Which code snippet of JSTL code satisfies this requirement?

A) <c:set var="resultMap" property="${results[0].name}">
${results[0].value}
</c:set>
B) ${resultMap[results[0].name] = results[0].score}
C) <c:set var="resultMap" property="${results[0].name}"
value="${results[0].score}" />
D) <c:set var="${resultMap}" key="${results[0].name}"
value="${results[0].score}" />
E) <c:set target="${resultMap}" property="${results[0].name}"
value="${results[0].score}" />

Solutions: