PRJ321 chuan || 100% Verified Answers.

PRJ321 chuan || 100% Verified Answers.
Computers that run _______________ software make resources available. such as web pages.
images. PDF documents and even objects that perform complex tasks
A. Netbean
a. JDK
C. Eclipse
D. Web server correct answers D

Which of the following statements are correct about the status of the Http response? Select
the one correct answer

A. A status of 200 to 299 signifies that the request was successful.
B. A status of 300 to 399 is informational messages.
C. A status of 400 to 499 indicates an error in the server
D. A status of 500 to 599 indicates an error in the client. correct answers A

Classes HttpServlet and GenericServlet implement the ___ interface.

A. Servlet
B. Http
C. HttpServletRequest
D. HttpServletResponse correct answers A

You have to send a gif image to the client as a response to a request. Which of the following
calls will you have to make?

A. response.setContentType("image/gif");
B. response.setType("application/gif");
C. response.setContentType("application/bin");
D. response.setType("image/gif") correct answers ;A

Consider the code of ReportServlet servlet of a web application. Assuming generateReport()
is valid method and have no problems, which of the following statement about these servlet is
true?

A. ReportServlet will throw exception at runtime.
B. ReportServlet.java won't compile.
C. ReportServlet.java will compile and run without any problems. correct answers C

Which method of ReportGeneratorServlet will be called when the user clicks on the URL
shown by the following HTML.
Assume that ReportGeneratorServlet does not override the service (HttpServletRequest,
HttpServletResponse) method of the HttpServlet class.
(Choose one)

A. doGet(HttpServletRequest, HttpServletResponse);
B. doPost(HttpServletRequest, HttpServletResponse);
C. doHead(HttpServletRequest, HttpServletResponse);
D. doOption(HttpServletRequest, HttpServletResponse) correct answers ;A

,What will be the outcome of executing the following code?

public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
response.setContentType("text/plain");
response.setContentLength(6);
PrintWriter out = response.getWriter();
out.write("What's your name? ");
out.write("" + response.isCommitted());
}

A. Won't execute because of a compilation error.
B. An IllegalArgumentException is thrown.
C. An IllegalStateException is thrown.
D. A blank page is returned to the client.
E. "What's" is returned to the client.
F. "What's your name?" is returned to the client. - correct answers E

Which of the following is indicated by URL, which is used on the Internet?

A. Information resources(sources) on the Internet
B. E-mail addresses for use in the Internet
C. IP addresses of servers connected to the Internet
D. Owners of PCs connected to the Internet correct answers A

Identify correct statement about a WAR file. (Choose one)

A. It is an XML document.
B. It cannot be unpackaged by the container.
C. It is used by web application developer to deliver the web application in a single unit.
D. It contains web components such as servlets as well as EJBs. correct answers C

See the extract from web.xml of web application "mywebapp" on server named myserver,
runs on port 8080:

<servlet-mapping>
<servlet-name>ServletA</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ServletB</servlet-name>
<url-pattern>/bservlet.html</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ServletC</servlet-name>
<url-pattern>*.servletC</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ServletD</servlet-name>

, <url-pattern>/dservlet/*</url-pattern>
</servlet-mapping>

Given that a user enters the following into her browser, which (if any) of the mapped servlets
will execute? (Choose one.)
http://myserver:8080/mywebapp

A. ServletA
B. ServletB
C. ServletC
D. ServletD correct answers A

A .................... manages the threading for the servlets and JSPs and provides the necessary
interface with the Web server.

A. Web Container
B. EJB Container
C. Servlets
D. Applets correct answers A

A ________has a name, a single value, and optional attributes such as a comment, path and
domain qualifiers, a maximum age, and a version number.

A. Cookie
B. Session
C. Request
D. Response correct answers A

Which of the following method calls can be used to retrieve an object from the session that
was stored using the name "roleName"?

A. getObject("roleName");
B. getValue("roleName");
C. get("roleName");
D. getAttribute("roleName");
E. getParameter("roleName") correct answers ;D

Which is NOT a standard technique for a session be definitely invalidated?

A. The container is shutdown and brought up again.
B. No request comes from the client for more than "session timeout" period.
C. A servlet explicitly calls invalidate() on a session object.
D. If the session time out is set to 0 using setMaxInactiveInterval() method. correct answers
A

Which method can be invoked on a session object so that it is never invalidated by the servlet
container automatically?

A. setMaxInactiveInterval(-1)
B. setTimeOut(Integer.MAX_INT)