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|Interview Questions and Answers|
|Ans. Http is connection less by default. header informs hosts to keep the connection alive so that the same connection can be reused for multiple communication.|
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|Like Discuss Correct / Improve  java   http   http-alive   client server communication|
|What is session tracking and how do you track a user session in servlets?|
|What is URL?|
|What is HTTP ?|
|What are different types of cookies ?|
|what is content negotiation?|
|Why Web services use HTTP as the communication protocol ?|
|What is the use of HTTPSession in relation to http protocol ?|
|Why using cookie to store session info is a better idea than just using session info in the request ?|
|http protocol is by default ... ?|