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8. What are the differences between collision domain,broadcast domain, and VLAN? (Describe what theyare, their scopes and whether they can overlap.)

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9. Layer-2 bridging vs. Layer-3 routing? (Compare theirforward mechanisms, management, and scalability.)

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?