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Unformatted text preview: A. True B. False 7. In Ethernet switches, collisions could occur among different ports. A. True B. False 8. In a token ring network, two hosts can send at the same time. A. True B. False 9. Ad Hoc wireless LANs do need central controllers. A. True B. False 10. In wireless LAN, multiple access points (APs) are interconnected through BSS. A. True B. False 11. In PCF mode, contention could occur. A. True B. False 12. In wireless LAN, reducing the IFS of a certain type of frames will increase their priority. A. True B. False 13. In wireless LANs, ACKs should be assigned larger IFS than data frames. A. True B. False 14. IEEE802.11a, b and g are working at the same frequency. A. True B. False 15. When a frame is delivered from a wireless LAN to a wireline Ethernet LAN, its frame structure is not changed. A. True B. False...
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- Spring '09
- media access control, wireless LANs, True B. False, A. True B.