Practice Quiz in Wire and Wireless Communications System Part 20

This is the Online Practice Quiz in Wire and Wireless Communications System Part 20 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 XX of the Online Practice Quiz

Quiz in Wire and Wireless Communications System Question 191. What bad electrical effect happens when the switch-hook is opened? A. A high voltage transient is generated B. The line is shorted out C. The line is opened D. No bad effects happen Question 192. The common channel signaling method A. Uses the same channel for signaling as for the related conversation B. Uses a separate channel for signaling only C. Carries the signaling for only one related conversation D. Is used on local loops Question 193. Telephone switching is accomplished by A. Manual switchboard B. Step-by-step switches C. Crossbar switches D. Any of these Question 194. It is the functional entity from which the operator monitors and controls the mobile communication system. A. Operation and Maintenance System B. Mobile Switching Center C. Gateway Mobile Switching Center D. Operation and Support System Question 195. Which component in the telephone set has the primary function of interfacing the handset to the local loop? A. Resistor B. Varistor C. Capacitor D. Induction coil Question 196. Blocked calls delay condition specified delay probability A. Erlang B B. Erlang C C. Erlang D D. Poisson Question 197. It provides all the control functions and physical links between the MSC and BTS A. OSS B. OMC C. MSC D. BSC Question 198. The multiple access used by Digital European Cordless Telephone (DECT) A. CDMA B. FDMA C. TDMA D. CDMA/FDMA Question 199. The GSM cellular radio system uses GMSK in a 200-kHz, with a channel data rate of 270.833 kbps. Calculate the frequency shift between mark and space in kHz? A. 135.4165 B. 153.6514 C. 315.4651 D. 513.1654 Question 200. Number of channels for GSM A. 333 B. 666 C. 124 D. 248

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