Session tracking is a technique that servlets use to maintain a record of a series of requests originating from the same user or the same browser across a period of time. These sessions are shared between the servlets that are accessed by a client.

There are 4 techniques to track sessions:

  • Cookies
  • Hidden Fields.
  • URL Rewriting.
  • Session Tracking API.
BY Best Interview Question ON 18 Jan 2019