Routers make packet forwarding decisions primarily using their routing table , which contains data on the best paths to different network destinations. When a packet arrives, the router checks this table against the destination IP address to determine the most efficient route. Other tables, like the gateway table or MAC address table, serve different purposes and do not directly affect packet forwarding. ;
Routers make packet forwarding decisions based on their routing table, which contains the best paths to different network destinations. When a packet arrives, the router consults this table to determine the most efficient route based on the destination IP address. Therefore, the correct answer is B. The router's routing table.
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