How do routers differ from switches in a typical network?

How do routers differ from switches in a typical network?

• A. Routers connect different networks; switches connect devices within the same network
• B. Routers are faster than switches
• C. Switches operate at OSI layer 4; routers at layer 2
• D. Routers forward frames to unknown destinations; switches forward to gateways

Answer: (A)

The key idea is recognizing where each device operates in the network. Routers connect different networks and route traffic between them using IP addresses. They sit at the network boundary (often toward the edge or toward other networks like the Internet) and decide which path a packet should take to reach its destination network. Switches, on the other hand, connect devices within the same local network. They forward frames based on MAC addresses to the correct device inside that LAN, keeping communications efficient and localized. In simple setups, devices attach to a switch to share a LAN, while the router handles communication with other networks, including the Internet. Keep in mind that some devices called layer-3 switches can perform routing as well, but the standard distinction is that routers connect networks and switches connect devices within a single network.

The key idea is recognizing where each device operates in the network. Routers connect different networks and route traffic between them using IP addresses. They sit at the network boundary (often toward the edge or toward other networks like the Internet) and decide which path a packet should take to reach its destination network.

Switches, on the other hand, connect devices within the same local network. They forward frames based on MAC addresses to the correct device inside that LAN, keeping communications efficient and localized. In simple setups, devices attach to a switch to share a LAN, while the router handles communication with other networks, including the Internet.

Keep in mind that some devices called layer-3 switches can perform routing as well, but the standard distinction is that routers connect networks and switches connect devices within a single network.