Networking Device and Protocols

4.1. Comparison with Other Devices

Hub vs. Switch:

Hub: Broadcasts data to all ports (Layer 1, shared collision domain).

Switch: Forwards data only to the intended device using MAC addresses (Layer 2, separate collision domains).

Why Switches Win: Switches are more efficient, support full-duplex, and scale better.

Hub vs. Router:

Hub: Connects devices in a single LAN, broadcasting signals (Layer 1).

Router: Routes packets between networks using IP addresses (Layer 3).

Key Difference: Hubs operate locally; routers connect networks (e.g., LAN to WAN).

Hub vs. Access Point:

Hub: Connects wired devices via Ethernet (Layer 1).

Access Point: Connects wireless devices to a wired network (Layers 1 and 2).

Key Difference: Hubs are wired; access points enable Wi-Fi.