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Servlets Interview Questions

Servlets Interview questions with answers

Servlets Interview - August 02, 2008, 17:00 pm by Amit Satpute
What is Servlets and explain the advantages of Servlet life cycle?

Answer - Servlets are the programs that run under web server environment....

Explain life cycle of Servlet.

Answer - Servlets life cycle involve three important methods....

What are different Authentication options available in Servlets.

Answer - There are four ways of Authentication options available in servlets......

Explain why HttpServlet is declared abstract.

Answer - The Constructor HttpServlet() does nothing because this is an abstract class.........

Is possible to have a constructor for a servlet?

Answer - Yes, it is possible to have a constructor for a servlet.......

What is the difference between an Applet and a Servlet?

Answer - Applets are applications designed to be transmitted over the network......

Define HTTP Tunneling?

Answer - In some organizations, the intranet is blocked by a firewall to the internet..........

List out the difference between ServletConfig and ServletContext?

Answer - Both are interfaces in the package javax.servlet...............

What is the difference between doGet() and doPost()?

Answer - doGet() and doPost() are HTTP requests handled by servlet classes..........

What is the difference between using getSession(true) and getSession(false) methods?

Answer - getSession(true) will check whether a session already exists for the user..........

List out the difference between a JavaBean from a Servlet?

Answer - Servlets are Java based analog to CGI programs, implemented by means of ..........

Explain how servlets differ from RMI. Explain the advantages and disadvantages of each technology.

Answer - RMI (Remote Method Invocation) are a means of client server communication........

Define servlet mapping.

Answer - Servlet mapping controls how you access a servlet. It is recommended that you don’t use.........

Explain javax.servlet.http package.

 
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