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Session vs Cache

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Difference between Session and Cache?

Answer 1)
The key difference is session is per user, while cache will be for application scoped items.

Another difference is:
  • Items put into a session will stay there, until the session ends.
  • Items in the cache can expire (will be removed from cache) after a specified amount of time. And also there is no guaranty that objects will not be removed before their expiration times as ASP.NET remove items from cache when the amount of available memory gets small. This process is called as Scavenging.
Another difference is:
  • The session state can be kept external (state server, SQL server) and shared between several instances of your web app (for load balancing).
  • This is not the case with the cache.
  Asked in:  Wipro   Expertise Level:  Experienced
  Last updated on Wednesday, 12 October 2011
4/5 stars (26 vote(s))

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