The conditional GET mechanism

A. Imposes conditions on the objects to be requested
B. Limits the number of response from a server

C. Helps to keep a cache upto date

D. None of the mentioned

Explanation: The HTTP protocol requests the server of the website its trying to access so that it can store its files, images etc. in cache memory. This request of asking the server for a document considering a specific parameter is called conditional GET Request.

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