Question: Two processes are using an IPC communication implemented in the kernel, what is the minimum overhead required from the moment the sender does a post

Two processes are using an IPC communication implemented in the kernel, what is the minimum overhead required from the moment the sender does a post to the moment the receiver process gets access to the communicated data (assume sender was running at the beginning):

A)2 system calls and 2 context switches

B)2 system calls and 1 context switch

C) 2 system calls and 3 context switches

D)None of the above

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