Which device operates at Layer 3 to forward packets between networks?

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Multiple Choice

Which device operates at Layer 3 to forward packets between networks?

Explanation:
Layer 3 is the network layer, which handles routing between different networks. The device that does this inter-network forwarding is a router. It reads the destination IP address on each packet, uses its routing table to choose the next hop, and forwards the packet toward the destination network. Switches work at Layer 2, moving frames within the same local network based on MAC addresses. Hubs operate at Layer 1, simply repeating signals to all ports, and repeaters likewise regenerate signals without considering addresses. Since the task is to forward packets between networks using IP routing decisions, the router is the correct choice.

Layer 3 is the network layer, which handles routing between different networks. The device that does this inter-network forwarding is a router. It reads the destination IP address on each packet, uses its routing table to choose the next hop, and forwards the packet toward the destination network. Switches work at Layer 2, moving frames within the same local network based on MAC addresses. Hubs operate at Layer 1, simply repeating signals to all ports, and repeaters likewise regenerate signals without considering addresses. Since the task is to forward packets between networks using IP routing decisions, the router is the correct choice.

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