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Computer Networks: Wireless WANs: Cellular Telephone and Satellite MCQs
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Computer Networks: Wireless WANs: Cellular Telephone and Satellite MCQs
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25 Questions

1. In third generation Cellular Telephony, the data rate of access is 384 Kbps for
2. In cellular telephony, voice communication using analog signals was designed for the
3. In Global Service for Mobile (GSM), each voice channel is digitized and compressed to a digital signal of
4. Second generation of the cellular phone network was developed, to provide higher-quality mobile
5. The Iridium system can be used for Navigation, Voice, Fax, Paging and
6. In Interim Standard 95 (IS-95) forward transmission, the scrambling is done to create
7. A Person should be able to talk to anyone else in the world with a voice quality similar to that of the existing fixed telephone network with a
8. In geostationary orbit, the satellites are used for
9. In Iridium system, active spot beams are approximately
10. Geostationary satellite cannot cover the whole
11. Global Service for Mobile (GSM) uses two bands for duplex
12. In cellular telephony transmission, a voice channel is digitized to
13. Third generation of Cellular Telephony, has the bandwidth of
14. Global star communication requires both satellites and
15. When a mobile phone is called, the telephone central office sends the number to the
16. The S satellite band has the Up-link of
17. In cellular telephony, MSC stands for
18. A mobile station only communicates with one base station, in a
19. The Global star system is similar to the
20. Orbital speed is based on the distance from the
21. The satellite must move at the same speed as the Earth, to ensure the constant
22. A satellite can also communicate with an Earth station through a
23. The Iridium System has 66 satellites divided into
24. To provide direct worldwide communication using handheld terminals, is the purpose of
25. Medium-Earth-orbit (MEO) satellites are positioned between the two