In computer network nodes are:

A) The computer that originates the data

B) The computer that routes the data

C) The computer that terminates the data

C) All of the these

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Network congestion occurs:

A) In case of traffic overloading

B) When a system terminates

C) When connection between two nodes terminates

D) In case of transfer failure

Which one of the following is not a function of network layer?

A) Routing

B) Inter-networking

C) Congestion control

D) None of these

In the OSI model, network layer is the third layer and it provides data routing paths for network communications. Error control is a function of the data link layer and the transport layer.

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