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3. Why is netmask used inside a router and a host?

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4. Routing vs. forwarding? (Compare their type ofwork and the algorithm used.)

5. Why could there be multiple matched IP prefixesin a router’s table lookup? (Explain what networkconfigurations could result in this.)

6. How is longest-prefix matching done in the Linuxkernel? Why is the matched prefix guaranteed to bethe longest?

7. How is the forwarding table organized in the Linuxkernel?

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