PRJ301 FPT kì 4

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.

Servlet methods are executed automatically.

• A. True

• B. False

If you want the same servlet to handle both GET and POST and to take the same action for each, you can simply have doGet call doPost, or vice versa.

• A. True
  

• B. False

When a web server responds to a request from a browser or other Web client the response typically consists of: (Choose one)

• A. a status line, some response headers, a blank line, and the document
  

• B. a status line, a blank line, and the document
  

• C. a blank line, a status line, some response headers and the document
  

• D. a status line, some response headers, and the document

Which of these is legal return type of the doStartTag method defined in a class that extends TagSupport class?

• A. EVAL_PAGE
  

• B. EVAL_BODY
  

• C. EVAL_PAGE_INCLUDE
  

• D. EVAL_BODY_INCLUDE
  

• E. SKIP_PAGE

Classes HttpServlet and GenericServlet implement the ___ interface.

• A. Servlet
  

• B. Http
  

• C. HttpServletRequest
  

• D. HttpServletResponse

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");

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

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);

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.
  F. "What's your name?" is returned to the client.

• E. "What's" is returned to the client.