10. Which of the following statements best describes repeaters a. Repeaters and

Question

10. Which of the following statements best describes repeaters a. Repeaters and bridges both amplify the c. Repeaters retransmit all packets, while and bridges? address to determine which packets should be forwarded onto the next segment. data and retransmit the frames to provide bridges examine the destination MAC better fault tolerance. A repeater is an intelligent device thatd. examines the packets while a bridge merely links segments While bridges link segments to make a larger network, repeaters help manage and b. reduce traffic 11. In which of the following situations would ad-hoc mode not work satisfactorily? a. Transferring files among a small group of c. Sharing printers among a small group of computers (10 or so) computers (10 or so) To provide centralized control over the wireless network d. Setting up a temporary network for a business meeting 12. All of the following are true about infrastructure mode except a. It uses two or more wireless access points that connect the wireless network nodes It is used to connect wireless network segments to a wired network c. centrally It can be used to provide centralized control over a wireless network with a b. It is similar to the mesh topology of a d. wired network. large number of PCs 13. All of the following describe the 802.11b standard except a. The range is limited to about 150 feet c. It uses the 5 GHz broadcast range b. The maximum speed is 2 Mbps d. Security is provided by WEP and WPA 14. Which of the following statements is not true about the 802.11a standard? a. It uses the 5 GHz range b. It offers speeds up to 54 Mbps Its top range is about 150 feet It is compatible with 802.1lb c. d. 15. Which of the following is not true about the 802.11b networking standard? a. Its maximum range is about 300 fect b. It uses the 2.4 GHz frequency It has a maximum throughput of 11 Mbps It was defined after the 802.11a standard c. d. 16. Which of the following is not true of the 802.16 wireless standard? a. It is often called WiMax It is perfect for Metropolitan Area c. Networks (MANs) It has a range of up to 30 miles b. Its speed is comparable to that of the d. 802.11g 17. All of the following may fix interference problems caused by other wireless devices a Change the channel that your network c. Switch from WEP to WPA security b. Change the channel that the offendingd. Try moving the interfering device to EXCEPT device uses another area or replacing it with a different device

Explanation / Answer

10. C

Repeaters are passive devices that just retransmit the data, to increase the distance which the data can travel. While bridges are intelligent devices that forward data to correct destination.

11. C

Printers are better used in server based network because there maybe just one printer that needs to be shared among many devices.

12. B

All other points are true regarding Infrastructure Mode

13. C

802.11b uses 2.4 GHz

14. D

802.11a is not interoperable with 802.11b because of different frequency ranges.

15. A

Maximum range of 802.11b is around 150 ft.

16. B

Speed of 802.11g is 54 Mbps, Speed of 802.16 is 70 Mbps

17. C

Security is not related to this problem

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