Question 31 : What is the full form of LOS?
1. Level Of Signal
2. Line Of Sight
3. Loss Of Signal
4. Level Of Sight
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Question 32 : Power can be coupled into or out of a waveguide with a magnetic field probe.
1. True
2. False
3.
4.
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Question 33 : Which term is used for moving PCM samples from one time slot to another?
1. time switching
2. space switching
3. phase switching
4. frequency switching
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Question 34 : PSK stands for Pulse Shift Keying.
1. True
2. False
3.
4.
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Question 35 : Which term is used when signals move from one line to another?
1. path switching
2. space switching
3. line switching
4. cross-point switching
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Question 36 : TDMA stands for ________
1. Time Division Multiple Access
2. Time Domain Multiple Access
3. Time Division Mutual Access
4. Time Domain Mutual Access
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Question 37 : Which modulation is used by a microwave system?
1. FM
2. SSB
3. QAM
4. Either FM or SSB or QAM
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Question 38 : What is the approximate reliability of a microwave system?
1. 90%
2. 99%
3. 99.99%
4. 90.99%
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Question 39 : In digital microwave systems, additional repeaters increase the ________
1. selectivity
2. noise level
3. jitter
4. sensitivity
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Question 40 : The microwave frequency range is considered to start at ________
1. 1 GHz
2. 10 GHz
3. 100 GHz
4. 5 GHz
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