12. Suppose you have a wireless router connected to a cable modem at your home. And you have four PCs that use 802.11 to wirelessly connect to the router. Finally, suppose your ISP dynamically assigns one IP address to your wireless router. a. How are IP addresses assigned to the four PCs? b. Does your wireless router use NAT? Why or why not? 13. Software-Defined Networking uses a logically-centralized controller to decouple what
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