Computer Networks

641. The advantages of FM over AM are

1. Improved signal to noise ratio(about 25dB)
2. Less radiated power
3. Well defined service areas for given transmitter power
4. Smaller geographical interference between neighboring stations
5. All of these

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642. The AM is considered as a

1. Linear process
2. Non-linear process
3. Both a & b
4. None of these

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643. The amplitude of carrier frequency ____________ in accordance with the modulated signal

1. Can not change
2. Change
3. Either change or not
4. None of these

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644. The analog form of electronic communication represents the information in

1. Continuous electromagnetic wave form
2. Discrete form
3. Both a & b
4. None of these

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645. The Another channel in BRA(Basic Rate Access) is referred as D-channel Functions at

1. 12Kbps
2. 14Kbps
3. 16Kbps
4. 18Kbps

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646. The another name of DME(Differential Manchester Encoding)

1. CDP(Conditioned Diphase Encoding)
2. MPE(Manchester Phase Encoding)
3. SSWs(Service Switching websites)
4. SSPs(Service Switching Points)

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647. The ANSI began working on the FDDI-standard in

1. 1980
2. 1981
3. 1982
4. 1983

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648. The ANTC stands for

1. Advanced Network Test Center
2. American National Test Center
3. American National Token Center
4. None of these

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649. The assumptions of Stop and Wait ARQ are as

1. Infinite buffer size
2. Half Duplex
3. Does not produce any error
4. Network layers are always ready
5. All of these

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650. The Asynchronous TDM is properly known as

1. Statistical TDM
2. Static TDM
3. Dynamic TDM
4. None of these

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