Which device routes data packets between different computer networks?

Which device routes data packets between different computer networks?

• A. Modem
• B. Router
• C. Hub
• D. Switch

Answer: (B)

Routing packets between different computer networks is done by a device that operates at the network layer, using destination IP addresses to decide where to send each packet next. This device maintains routing tables and may use routing protocols to determine the best path across multiple networks or to the Internet. Its job is inter-network communication, connecting separate networks and directing traffic between them. Other devices perform different roles: a modem connects a local network to an ISP and translates signals for that link; a hub simply repeats incoming signals to all connected devices within a single network without considering destinations; a switch forwards frames within the same network based on MAC addresses, not to different networks.

Routing packets between different computer networks is done by a device that operates at the network layer, using destination IP addresses to decide where to send each packet next. This device maintains routing tables and may use routing protocols to determine the best path across multiple networks or to the Internet. Its job is inter-network communication, connecting separate networks and directing traffic between them.

Other devices perform different roles: a modem connects a local network to an ISP and translates signals for that link; a hub simply repeats incoming signals to all connected devices within a single network without considering destinations; a switch forwards frames within the same network based on MAC addresses, not to different networks.