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IP Forwarding is a cooked quant interview question on networking.
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This is a foundational networking question that probes your understanding of how packets are routed across networks. It examines whether you grasp the core mechanism that allows the internet to function—specifically, the principle on which routing decisions depend at each hop.
The question rewards clarity on the distinction between network-level and link-level addressing, and on how routers use routing tables to make forward decisions. You should be able to articulate the fundamental basis of packet delivery without getting lost in protocol details.