Computer Networks - Unit II
Quiz by Dr.J.Jenefa
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10 questions
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- Q1Digital-to-digital encoding is the representation of digital information by a ______ signal.AnalogDigitalDigitalAnalog and Digital30s
- Q2NRZ stands for __________Non-Return-to-ZNon-Return-to ZeroNon-Return ZeroNon-Return Zero30s
- Q3RZ stands for __________Return-to ZeroReturn ZReturn ZeroReturn-to Zero30s
- Q4In NRZ-L, L stands forLevelLowLevelLess30s
- Q5AMI stands forAlternate Mark InversionAlternate Mark InversionAlternate Mark InvertAlternate Mark Inverse30s
- Q6What is the main aim of block coding?To replace a block of codeTo avoid synchronization problemTo add redundant bitsTo avoid synchronization problem30s
- Q7What are the different types of packet switching?Both A & BVirtual Circuit ApproachBoth A & BDatagram Approach30s
- Q8_____________ is a passage to connect two networks togetherSwitchGatewayGatewayHub30s
- Q9What is the range of infra-red?200 to 300 THz300 GHz to 400 THz.300 GHz to 400 THz.100 to 300 THz30s
- Q10In PSK, which remains constant?Frequency,phaseFrequency, AmplitudePhase, AmplitudeFrequency, Amplitude30s