Which OSI layer most closely corresponds to the TCP/IP Internet layer, providing logical addressing and path selection between networks?
Data Link layer (Layer 2)
Transport layer (Layer 4)
Physical layer (Layer 1)
Network layer (Layer 3)
The TCP/IP Internet layer is responsible for moving packets across network boundaries using logical (IP) addressing and routing. In the OSI model, these functions are performed at the Network layer (Layer 3). The Data Link layer (Layer 2) handles framing and physical addressing on a local segment, the Transport layer (Layer 4) manages end-to-end session reliability with protocols like TCP and UDP, and the Physical layer (Layer 1) transmits raw bits over the physical medium. Therefore, the Network layer is the correct correspondence.
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