Question 41 : In slotted system, access is
1. Synchronous
2. Asynchronous
3. Synchronous & Asynchronous
4. None of the mentioned
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Question 42 : Example of reservation system is
1. Synchronous TDM
2. Non synchronous TDM
3. Synchronous & Non synchronous TDM
4. None of the mentioned
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Question 43 : TDM can be employed to transmit channels having unequal bandwidth,
1. True
2. False
3.
4.
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Question 44 : For a throughput of value less than 0.20, which has less average delay?
1. S-ALOHA
2. Pure ALOHA
3. R-ALOHA
4. None of the mentioned
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Question 45 : The maximum packet size of Ethernet is
1. 1426 bytes
2. 1526 bytes
3. 1256 bytes
4. 1626 bytes
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Question 46 : Reservation systems are useful when
1. Delay is small
2. Delay is large
3. Delay is small or large
4. None of the mentioned
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Question 47 : Which technique needs precise synchronization?
1. TDMA
2. FDMA
3. TDMA & FDMA
4. None of the mentioned
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Question 48 : Which uses orthogonal codes?
1. Synchronous CDMA
2. Asynchronous CDMA
3. Synchronous & Asynchronous CDMA
4. None of the mentioned
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Question 49 : Which is better for avoiding jamming?
1. Direct sequence spread spectrum
2. Frequency hopping spread spectrum
3. Time hopping spread spectrum
4. None of the mentioned
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Question 50 : Uncertainty in the delay measurement is _______ to rise time of the pulse.
1. Directly proportional
2. Inversely proportional
3. Not related
4. None of the mentioned
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