This set of Digital Communications Systems Multiple Choice Questions & Answers (MCQs) focuses on “Information and Coding”. 1. The method of converting a word to stream of bits is called asa) Binary codingb) Source codingc) Bit codingd) Cipher coding 2. Self information should bea) Positiveb) Negativec) Positive & Negatived) None of the mentioned 3. The […]
Continue ReadingThis set of Digital Communications Systems Multiple Choice Questions & Answers (MCQs) focuses on “Interpolation”. 1. Which produces smoother interpolants?a) Polynomial interpolationb) Spline interpolationc) Polynomial & Spline interpolationd) None of the mentioned 2. Gaussian process is a _____ interpolation process.a) Linearb) Non linearc) Not an interpolation processd) None of the mentioned 3. Interpolation provides a […]
Continue ReadingThis set of Digital Communications Systems Multiple Choice Questions & Answers (MCQs) focuses on “Codes and Coding Technique”. 1. Which reduces the size of the data?a) Source codingb) Channel codingc) Source & Channel codingd) None of the mentioned 2. A code is a mapping froma) Binary sequence to dicrete set of symbolsb) Discrete set of […]
Continue ReadingThis set of Digital Communications Systems Multiple Choice Questions & Answers (MCQs) focuses on “Error Detection and Correction – 2″. 1. Which gets less affected by noise?a) Error correctionb) Error detectionc) Error correction & detectiond) None of the mentioned 2. Which is more complex?a) Encodingb) Decodingc) Encoding & Decodingd) None of the mentioned 3. Which […]
Continue ReadingThis set of Digital Communications Systems Multiple Choice Questions & Answers (MCQs) focuses on “Error Detection and Correction – 1″. 1. Which has comparatively high frequency component?a) Sine waveb) Cosine wavec) Square waved) None of the mentioned 2. In layering, n layers provide service toa) n layerb) n-1 layerc) n+1 layerd) none of the mentioned […]
Continue ReadingThis set of Digital Communications Systems Multiple Choice Questions & Answers (MCQs) focuses on “ISDN and Interface”. 1. U-interface is the two wire interface betweena) Computing device and terminal adapterb) Terminal adapter and exchange unitc) Exchange unit and network terminating unitd) Computing device and exchange unit 2. Circuit switched connection is provided fora) Voiceb) Datac) […]
Continue ReadingThis set of Digital Communications Systems Multiple Choice Questions & Answers (MCQs) focuses on “Random Processes”. 1. The type of distortion which occurs in delta modulation isa) Slope overload distortionb) Granular noisec) Slope overload distortion & Granular noised) None of the mentioned 2. Analog source coding method area) Temporal waveform codingb) Spectral waveform codingc) Model […]
Continue ReadingThis set of Digital Communications Systems Multiple Choice Questions & Answers (MCQs) focuses on “Protocols”. 1. Which tells about low level transmission and framing?a) V seriesb) X seriesc) G seriesd) Q series 2. Which is connection oriented and which is connection-less?a) Datagrams, virtual circuitsb) Virtual circuits, datagramsc) Datagramsd) None of the mentioned 3. The time […]
Continue ReadingThis set of Digital Communications Systems Multiple Choice Questions & Answers (MCQs) focuses on “Abstraction and Layering”. 1. Transmission media isa) Acousticb) Guidedc) Opticald) All of the mentioned 2. In channel, delay isa) Fixedb) Variablec) Fixed & Variabled) None of the mentioned 3. Top layer isa) Physical mediab) Applicationc) Designd) None of the mentioned 4. […]
Continue ReadingThis set of Digital Communications Systems Multiple Choice Questions & Answers (MCQs) focuses on “Fading and Decision Theory Effects”. 1. How can frequency selective distortion be minimized?a) By using pilot signalb) By adaptive equalizationc) By spread spectrumd) All of the mentioned 2. Which noise component plays a role in decision making?a) Relevant noiseb) Non relevant […]
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