9. Layer-2 bridging vs. Layer-3 routing? (Compare theirforward mechanisms, management, and scalability.)
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10. Layer-2 bridging on a large campus network? Why not?
11. Why do we say bridges are transparent to hosts whilerouters are not?
12. Why do we need a spanning tree in transparentbridging?
13. How do we design a MAC in an IC? (Describethe general design flow and the variables used inprogramming.)