CS506 CURRENT FINALTERM PAPER FALL 2013 SHARED BY ΏĄƝƗĄ FILE 4

My today paper

Why controller is implemented as servlet?........2

How JSP pages are informed about the error page?……..2

HTTP is a stateless protocol, what do we need to do in order to make it possible for it to maintain states?..2

Correct the following path for setting JAVA_HOME variable

C:\program files\java\JDK-Root-Directory\bin……..2

Give one advantage and two disadvantage of page centric approach……..3

What problem can arise if a process A that needs 20 iteration to execute has highest priority while process B needs 5 iteration but has lowest priority? Explain with reason……..3

Which type of HttpRequest object methods are used to read the HTML form data submitted by user?…3

What happens if:

We set true as a request.getSession(true);

We set false as a request.getSession(false);……..5

 Write a script that validate the phone number field in the form such a way if user leaves it empty it receives a message “ phone number is required. It can’t be left empty……..5

What is the hidden comment in JSP? Explain this syntax

<%…comment…%>……..5

Write a web.xml for the servlet whose name is “MyFirstServlet” and its id is “VFirstServlet”. This servlet is access through url name “ViewServlet”………5