Java Enterprise Edition 5 Web Component Developer Certified Professional Exam

Question 1

Given:
3.public class MyTagHandler extends TagSupport {
4.public int doStartTag() {
5.// insert code here
6.// return an int
7.}
8.// more code here
...
18. }
There is a single attribute foo in the session scope.
Which three code fragments, inserted independently at line 5, return the value of the attribute? (Choose three.)

A. Object o = pageContext.getAttribute("foo");

B. Object o = pageContext.findAttribute("foo");

C. Object o = pageContext.getAttribute("foo", PageContext.SESSION_SCOPE);

D. HttpServletRequest r = pageContext.getRequest(); Object o = r.getAttribute("foo");

E. HttpSession s = pageContext.getSession(); Object o = s.getAttribute("foo");

Correct Answer: B,C,E

Question 2

DRAG DROP
Click the Task button.
Place the code snippets in the proper order to construct the JSP code to import static content into a JSP page at translation-time.

Correct Answer:

Question 3

Given the two security constraints in a deployment descriptor:
101.
<security-constraint>
102.

103.
<auth-constraint><role-name>SALES</role-name></auth-
103.
<auth-constraint>
104.
<role-name>SALES</role-name>
105.
</auth-constraint>
106.
</security-constraint>
107.
<security-constraint>
108.

109.

110.
</security-constraint>
If the two security constraints have the same url-pattern and http-method, which two, inserted independently at line 109, will allow users with role names of either SALES or MARKETING to access this resource? (Choose two.)

A. <auth-constraint> <role-name>*</role-name> </auth-constraint>

B. <auth-constraint/>

C. <auth-constraint> <role-name>MARKETING</role-name> </auth-constraint>

D. <auth-constraint> <role-name>ANY</role-name> </auth-constraint>

Correct Answer: A,C

Question 4

Given:
3.class MyServlet extends HttpServlet {
4.public void doPut(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
5.// servlet code here ...
26.
}
27.
}
If the DD contains a single security constraint associated with MyServlet and its only <httpmethod> tags and <auth-constraint> tags are:
<http-method>GET</http-method> <http-method>PUT</http-method> <auth-constraint>Admin</auth-constraint>
Which four requests would be allowed by the container? (Choose four.)

A. A user whose role is Member can perform a GET.

B. A user whose role is Admin can perform a PUT.

C. A user whose role is Admin can perform a POST.

D. A user whose role is Admin can perform a GET.

E. A user whose role is Member can perform a POST.

F. A user whose role is Member can perform a PUT.

Correct Answer: B,C,D,E

Question 5

Which interface must a session attribute implement if it needs to be notified when a web container persists a session?

A. javax.servlet.http.HttpSessionBindingListener

B. javax.servlet.http.HttpSessionAttributeListener

C. javax.servlet.http.HttpSessionActivationListener

D. javax.servlet.http.HttpSessionListener

Correct Answer: C

Question 6

In which three directories, relative to a web application's root, may a tag library descriptor file reside when deployed directly into a web application? (Choose three.)

A. /WEB-INF/resources

B. /META-INF/resources

C. /META-INF

D. /WEB-INF/tlds

E. /WEB-INF

F. /META-INF/tlds

Correct Answer: A,D,E

Question 7

You are building a web application that will be used throughout the European Union; therefore, it has significant internationalization requirements. You have been tasked to create a custom tag that generates a message using the java.text.MessageFormat class. The tag will take the resourceKey attribute and a variable number of argument attributes with the format, arg<N>. Here is an example use of this tag and its output:
<t:message resourceKey='diskFileMsg' arg0='MyDisk' arg1='1247' />
generates:
The disk "MyDisk" contains 1247 file(s).
Which Simple tag class definition accomplishes this goal of handling a variable number of tag attributes?

A. public class MessageTag extends SimpleTagSupport
implements VariableAttributes {
private Map attributes = new HashMap();
public void setVariableAttribute(String uri,
String name, Object value) {
this.attributes.put(name, value);
}
// more tag handler methods
}

B. public class MessageTag extends SimpleTagSupport
implements DynamicAttributes {
private Map attributes = new HashMap();
public void putAttribute(String name, Object value) {
this.attributes.put(name, value);
}
// more tag handler methods
}

C. public class MessageTag extends SimpleTagSupport
implements DynamicAttributes {
private Map attributes = new HashMap();
public void setDynamicAttribute(String uri, String name,
Object value) {
this.attributes.put(name, value);
}
// more tag handler methods
}

D. public class MessageTag extends SimpleTagSupport
implements VariableAttributes {
private Map attributes = new HashMap();
public void putAttribute(String name, Object value) {
this.attributes.put(name, value);
}
// more tag handler methods
}

E. The Simple tag model does NOT support a variable number of attributes.

Correct Answer: C

Question 8

A developer is designing the presentation tier for a web application which requires a centralized request handling to complete common processing required by each request. Which design pattern provides a solution to this problem?

A. Data Access Object

B. Service Activator

C. Business Delegate

D. Remote Proxy

E. Front Controller

F. Intercepting Filter

Correct Answer: E

Question 9

Click the Exhibit button.
The attribute "name" has a value of "Foo,"
What is the result if this tag handler's tag is invoked?

A. Foodone

B. Compilation fails because of an error in this code.

C. An exception is thrown at runtime.

D. done

E. No output is produced from this code.

F. Foo

Correct Answer: F

Question 10

For a given ServletResponse response, which two retrieve an object for writing text data?
(Choose two.)

A. response.getOutputWriter()

B. response.getWriter().getOutputStream()

C. response.getWriter()

D. response.getWriter(Writer.OUTPUT_TEXT)

E. response.getOutputStream()

Correct Answer: C,E

Question 11

DRAG DROP
Click the Task button.
Given a servlet mapped to /control, place the correct URI segment returned as a String on the corresponding HttpServletRequest method call for the URI: /myapp/control/processorder.

Correct Answer:

Question 12

Which element of the web application deployment descriptor defines the servlet class associated with a servlet instance?

A. <webapp>

B. <servlet-mapping>

C. <codebase>

D. <servlet-class>

E. <class>

F. <servlet>

Correct Answer: D

Question 13

You want to create a valid directory structure for your Java EE web application, and you want to put your web application into a WAR file called MyApp.war. Which two are true about the WAR file? (Choose two.)

A. It can instruct your Java EE container to verify, at deploy time, whether you have properly configured your application's classes.

B. At deploy time, Java EE containers add a directory call META-WAR directly into the MyApp directory.

C. At deploy time, Java EE containers add a directory called META-INF directly into the MyApp directory.

D. At deploy time, Java EE containers add a file called MANIFEST.MF directly into the MyApp directory.

Correct Answer: A,C

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

Latest Update

Useful Links

Contact Us