Practice Quiz in Wire and Wireless Communications System Part 25

This is the Online Practice Quiz in Wire and Wireless Communications System Part 25 as one of the Communications Engineering topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Examination Questions in Electronic System and Technologies, Communications Books, Journals and other Communications References.

Continue Part XXV of the Online Practice Quiz

Quiz in Wire and Wireless Communications System Question 241. Provides a centralized administration and maintenance point for the entire network end interfaces with the public telephone network through the telephone wireline voice trunks and data links. A. PSTN B. MTSO C. central offices D. MSC Question 242. Determine the transmit power for a CDMA mobile unit that is receiving a signal from the base station at 100 dBm A. 12 dBm B. 24 dBm C. 36 dBm D. 14 dBm Question 243. Receive channel 22 is 870.66 MHz. Receive channel 23 is A. 870.36 MHz B. 870.63 MHz C. 870.96 MHz D. 870.69 MHz Question 244. The signaling one may be transmitted on the voice channel during a call in what frequency? A. 25 kHz B. 20 kHz C. 15 kHz D. 10 kHz Question 245. It is a database in the PCS network that stores information about the user, including home subscription information and what supplementary services the user is subscribed to. A. visitor location register B. home location register C. equipment identification register D. authentication register Question 246. The TACS base station frequency range of operation A. 821-849 MHz and 869-894 MHz B. 890-915 MHz and 935-960 MHz C. 870-885 MHz and 925-940 MHz D. 825-890 MHz and 925-970 MHz Question 247. Cellular telephones use what type of operation? A. Simplex B. Half-duplex C. Full-duplex D. Triplex Question 248. Determine the channel capacity if 7 macrocells with 10 channels per cell is split into 4 minicells A. 120 channels per area B. 360 channels per area C. 280 channels per area D. 460 channels per area Question 249. Which of the following is not a 3G system? A. IMT-2000 B. WCDMA C. UMTS D. TDMA IS-136 Question 250. The antenna separation required in a cellular system when the antenna height at the base is 15 m is A. 5.477 m B. 1.364 m C. 4.869 m D. 2.434 m

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