Multiple choice technology architecture

Routers operate at which layer of the OSI model?

  1. physical

  2. transport

  3. network

  4. MAC sublayer of the data link layer

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Routers operate at the network layer (Layer 3) because they make forwarding decisions based on IP addresses to route packets between different networks. They are Layer 3 devices. Switches operate at the data link layer (Layer 2), and hubs/repeaters work at the physical layer (Layer 1).