Question

Explain what a servlet is and why it is needed and/or what it can solve/serve.

Answer 1

Servlet: Servlets are java program that runs on the java-enabled web server and extends capabilities of a server. Servlets work on the server-side and capable of handling complex requests from the webserver.

Servlets are used to handle the request from the web-server. Servlets process the request from the server, produce the response and respond back to the server. They serve the purpose of creating a dynamic web application in Java. Servlets solve the limitation of CGI such as low performance and low degree scalability.