2Which one of the following is not a function of the network layer?
A. routing
B. inter-networking
C. congestion control
D. error control
Answer:D
2Which one of the following is not a function of the network layer?
A. routing B. inter-networking C. congestion control D. error control
Explanation: 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.