Which does NOT describe IEEE 802.16 WiMAX? A. It can be used as a \"last mile\"

Question

Which does NOT describe IEEE 802.16 WiMAX? A. It can be used as a "last mile" alternative to DSL and cable modems. B. It is a microwave-based wireless system. C. It uses OFDM signaling. D. Its transmission range is limited to approximately 30 feet. Which statement about contention and congestion in switches and routers is FALSE? A. Congestion occurs when switch or router memory is completely full of frames/packets. Frames/packets which arrive during congestion will be lost (dropped). B. Contention occurs when a frame/packet must wait in a queue because there is at least one other frame/packet currently being transmitted ahead of it on the outbound interface (port). C. Datagram networks are immune to contention and congestion because they allow additional connections only when sufficient resources are available in their switches or routers. D. When contention becomes sufficiently severe, it becomes congestion. Which term describes a connectionless network, where packets are transmitted without acknowledgment? A. datagram B. distance-vector C. isochronous D. virtual circuit A fixed length ATM _____is called a ______ A. frame/cell B. frame/ packet C. header/cell D. protocol data unit (PDU)/frame What is the purpose of the IEEE 802.1 Spanning Tree Algorithm? A. to allow routing to occur between autonomous systems. B. to detect and eliminate misrouted frames. C. to discover alternate paths between LANs, so that the traffic on a given connection can be distributed (load-leveled) across multiple paths. D. to find and remove loops from LANs that are interconnected by multiple bridges or switches. The switching system used by ATM allows multiple ______to share one _____A. AALs /ATM cell B. CS-PDUs /ATM cell C. virtual circuits (VCI)/virtual path(VPI) D. virtual paths (VP)/virtual circuit (VCI)

Explanation / Answer

Please find the answers for the objective questions

11. D

12. B

13. A

14. A

15. D

16. B

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