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2. Why are MAC addresses f at but IP addresseshierarchical?

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

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?