Question: Data Communications and Network 1. What is the security benefit of Ethernet VLANs? In figure 5-28, to which hosts can Host D4 send frames? (pg.

Data Communications and Network

1. What is the security benefit of Ethernet VLANs? In figure 5-28, to which hosts can Host D4 send frames? (pg. 170-171)

2. What does CSMA/CA + ACK stand for? How does it work? Is it required or optional? Is it reliable? (pg. 201)

3. What cryptographic protections does 802.11i provide? How is this protection limited? Distinguish between link security and end-to-end security. What does the Wi-Fi Alliance call 802.11i? (pg. 225-226)

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