1) On which factor/s do/does the channel capacity depend/s in the communication system?
a. Bandwidth
b. Signal to Noise Ratio
c. Both a and b
d. None of the above
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Answer
Explanation
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ANSWER: Both a and b
Explanation:
No explanation is available for this question!
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2) Assuming that the channel is noiseless, if TV channels are 8 kHz wide with the bits/sample = 3Hz and signalling rate = 16 x 106 samples/second, then what would be the value of data rate?
a. 16 Mbps
b. 24 Mbps
c. 48 Mbps
d. 64 Mbps
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Answer
Explanation
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ANSWER: 48 Mbps
Explanation:
No explanation is available for this question!
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3) If a noiseless channel bandlimited to 5 kHz is sampled every 1msec, what will be the value of sampling frequency?
a. 250 samples/sec
b. 500 samples/sec
c. 800 samples/sec
d. 1000 samples/sec
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Answer
Explanation
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ANSWER: 1000 samples/sec
Explanation:
No explanation is available for this question!
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4) In sphere packing, where is the received code vector with added noise located?
a. Inside the sphere
b. Outside the sphere
c. On the boundary (circumference) of sphere
d. All of the above
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Answer
Explanation
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ANSWER: Inside the sphere
Explanation:
No explanation is available for this question!
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5) Which approach plays a cardinal role in supporting the results obtained regarding the information capacity theorem?
a. Line Packing
b. Volume Packing
c. Sphere Packing
d. All of the above
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Answer
Explanation
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ANSWER: Sphere Packing
Explanation:
No explanation is available for this question!
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6) According to Shannon's second theorem, it is not feasible to transmit information over the channel with ______error probability, although by using any coding technique.
a. small
b. large
c. stable
d. unpredictable
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Answer
Explanation
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ANSWER: small
Explanation:
No explanation is available for this question!
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7) If the channel is bandlimited to 6 kHz & signal to noise ratio is 16, what would be the capacity of channel?
a. 15.15 kbps
b. 24.74 kbps
c. 30.12 kbps
d. 52.18 kbps
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Answer
Explanation
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ANSWER: 24.74 kbps
Explanation:
No explanation is available for this question!
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8) In channel coding theorem, channel capacity decides the _________permissible rate at which error free transmission is possible.
a. Maximum
b. Minimum
c. Constant
d. None of the above
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Answer
Explanation
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ANSWER: Maximum
Explanation:
No explanation is available for this question!
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9) In digital communication system, smaller the code rate, _________are the redundant bits.
a. less
b. more
c. equal
d. unpredictable
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Answer
Explanation
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ANSWER: more
Explanation:
No explanation is available for this question!
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10) Which type of channel does not represent any correlation between input and output symbols?
a. Noiseless Channel
b. Lossless Channel
c. Useless Channel
d. Deterministic Channel
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Answer
Explanation
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ANSWER: Useless Channel
Explanation:
No explanation is available for this question!
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