In the OSI model, layer 3 corresponds to:

In the OSI model, layer 3 corresponds to:

• Data link layer
• Network layer
• Physical layer
• Transport layer 

EXPLANATION

The Network layer is also called as the layer 3 of the OSI model. Here are the basic functionalities of the network layer:

• Switching and routing technologies work here
• Creates logical paths between two hosts across the world wide web called as virtual circuits
• Routes the data packet to destination
• Routing and forwarding of the data packets.
• Internetworking, error handling, congestion control and packet sequencing work at this layer
• Router works at layer three
• Different network protocols like TCP/ IP, IPX, AppleTalk work at this layer