Tag: architecture

Communication Support

Life-cycle Management

Multithreading support

All of the above

Model – Java Class, JSP, View – HTML, Controller – Servlet

Model – Java Class, View – JSP, Controller – Servlet

Model – Java Class, View – JSP, Container – Servlet

Model – Java Beans, View – JSP, HTML, Controller – Servlet, EJB

GET

POST

PUT

HEAD

HttpServletRequest getParameter(...) retrieves the parameter value from the request

HttpServletResponse getAttribute(...) retrieves the attribute value from the response

HttpServletResponse getParameter(...) retrieves the parameter value from the response

HttpServletRequest setParameter(...) sets the parameter value to the request

sendURL()

redirectURL()

sendRedirect()

getRequestDispatcher()

Write servlet code to extend ThreadSafeServlet.

Have the servlet implement SingleThreadModel

Synchronize the service method of the servlet

Use local variables exclusively, and if you have to use instance variables, synchronize access to them.

A session whose timeout period has been set to -1 will never expire.

A session will become invalid as soon as the user closes all the browser windows.

A session will become invalid after a timeout period defined by the servlet container.

A session may be explicitly invalidated by calling HttpSession.invalidateSession().

URL rewriting may be used by a server as the basis for session tracking.

SSL has a built-in mechanism that a servlet container could use to obtain data used to define a session.

When using cookies for session tracking, the name of the session tacking cookie must be JSESSIONID.

IF a user has cookies disabled in the browser, the container may choose to use a javax.servlet.httpCookielessHttpSession object to track the user's session.

True

False

req.getSession(false);

req.getSession(true);

both the above

none of the above