Question

What are the differences between a Hub, Switch, and Router?

Q: Answer-What are the differences between a Hub, Switch, and Router?

Hub physical layer is a dumb device, broadcasts every packet to all ports, creates collision domains, largely obsolete. Switch data link layer maintains a MAC address table, forwards frames only to the correct port, reduces collisions, creates separate collision domains per port. Router network layer connects different networks LAN-to-WAN, LAN-to-LAN, uses routing tables and IP addresses, performs NAT, DHCP, and firewall functions. Bank branches use switches for internal connectivity and routers to connect to the WANinternet.

A Hub routes packets between networks; Switch connects devices in a LAN; Router amplifies signals and sends them to different networks using IP addresses

B Hub is used in WANs; Switch is used in MANs; Router is used in LANs

C Hub broadcasts data to all ports; Switch forwards frames to specific MAC addresses; Router routes packets between different networks using IP addresses

D Hub encrypts data; Switch compresses data; Router filters data

E All three perform identical functions but differ in speed and cost

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