Interview Questions - Networking

What is a peer-peer process?
The processes on each machine that communicate at a given layer are called peer-peer process.

When a switch is said to be congested?
It is possible that a switch receives packets faster than the shared link can accommodate and stores in its memory, for an extended period of time, then the switch will eventually run out of buffer space, and some packets will have to be dropped and in this state is said to congested state.

What is semantic gap?
Defining a useful channel involves both understanding the applications requirements and recognizing the limitations of the underlying technology. The gap between what applications expects and what the underlying technology can provide is called semantic gap.

What is Round Trip Time?
The duration of time it takes to send a message from one end of a network to the other and back, is called RTT.