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How do you decide how many APs are needed and where they should be placed for best performance?How does the design of the data center differ from the design of the LANs intended to provide user access to the network?What are three special purpose devices you might find in a data center and what do they do?Describe three ways to improve network performance on the server.1. How does a layer-2 switch differ from a router?4. Under what circumstances would you use a switched backbone?5. Under what circumstances would you use a routedbackbone?6. Under what circumstances would you use a VLAN backbone?7. Explain how routed backbones work.9. Explain how switched backbones work?10. What are the key advantages and disadvantages of routed and switched backbones?