Digital Communication Objective Questions And Answers Pdf

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digital communication objective questions and answers pdf

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PART 1. PART 2.

Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews. Take a quick online test. Attempt a small test to analyze your preparation level.

Digital Communications - MCQ Test 2

The step size remains same b. Step size varies according to the values of the input signal c. The quantizer has linear characteristics d. Both a and c are correct. Modulation b. Multiplexing c. Quantization d. Continuous in nature b. Logarithmic in nature c. Linear in nature d. Discrete in nature. Pulse code modulation b. Delta modulation c. Adaptive delta modulation d. All of the above. Sampling, quantizing, encoding b. Quantizing, encoding, sampling c. Quantizing, sampling, encoding d.

None of the above. Amplitude b. Frequency c. Phase d. It requires large bandwidth b. Very high noise c. Cannot be decoded easily d. Calculated using noise and inter symbol interference b.

Calculated using power spectral density d. One bit per sample is transmitted b. All the coded bits used for sampling are transmitted c. The step size is fixed d. N times the sampling frequency b. N times the modulating frequency c.

N times the nyquist criteria d. To convert analog signal into digital signal b. Where difference between successive samples of the analog signals are encoded into n-bit data streams c. Where digital codes are the quantized values of the predicted value d.

Slope over load distortion b. Quantization noise c. Transmission noise b. Quantizing noise c. Transit noise d. Both a and b are correct. Slope overload distortion b. Granular noise c. White noise d. Step size is too small b. Step size is too large c. There is interference from the adjacent channel d.

Bandwidth is too large. Delta modulation b. PCM c. Adaptive delta modulation c. DPCM d. Quantization error decreases b. Quantization error increases c.

Quantization error remains same d. For PCM voice transmission b. For delta modulation c. For frequency modulated signals d. Gaussian noise b. Transit time noise c. Flicker d. Matched filter is used to maximize Signal to noise ratio even for non Gaussian noise b. It gives the output as signal energy in the absence of noise c. They are used for signal detection d. To estimate the frequency of the received signal b.

In parameter estimation problems c. To estimate the distance of the object d. Line coding b. Amplitude modulation c. FSK d. Maximum possible b. As small as possible c.

Depends on the signal d. Eliminating noise b. Reconstruction of signals c. Transmission over long distances d. Exchanging of data c. Transmission of digital data d.

Zero voltage b. Negative voltage c. Pulse is transmitted for half the duration d. Both b and c are correct. Complete pulse duration b. Half duration c. Both positive as well as negative value d. Each pulse is used for twice the duration. Polar NRZ format b. Bipolar NRZ format c. Manchester format d.

Manchester format b. Polar NRZ c. Polar RZ d. Polar quaternary NRZ. Power saving b. Polarity sense at the receiver c. Noise immunity d. Pseudo ternary coding b.

Manchester coding c.

Electronics and Communication Engineering - Communication Systems

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electronics and communication multiple choice questions with answers pdf

Dear Readers, Welcome to Digital Communication multiple choice questions and answers with explanation. Specially developed for the Electronic Engineering freshers and professionals, these model questions are asked in the online technical test and interview of many companies. Fresh Trending Easy Medium Hard. Minimum hamming distance between two code words is equal to weight of any non zero code word. Pi graph b.

Digital Communication - Electronic Engineering (MCQ) questions & answers

The Autocorrelation function is given by exp. Then the PSD is given by. Then the entropy. In a Binary digital communication system, the threshold voltage of comparator is 'x' volts and voltage at input of comparator is uniformly distributed in the range of x

By practicing Electronics and Communication Engineering Objective Questions and Answers an individual for competitive exams, entrance exams, and interviews. Questions have practical as well as theoretical approach and discussion in forum option is good for explanations so that one can understand them easily and conceptually. Practice daily for good results and to learn and master various Electronics and Communication Engineering subjects.

Solved examples with detailed answer description, explanation are given and it would be easy to understand. Here you can find objective type Electronics and Communication Engineering Communication Systems questions and answers for interview and entrance examination. Multiple choice and true or false type questions are also provided. You can easily solve all kind of Electronics and Communication Engineering questions based on Communication Systems by practicing the objective type exercises given below, also get shortcut methods to solve Electronics and Communication Engineering Communication Systems problems.

These short solved questions or quizzes are provided by Gkseries. For attenuation of high frequencies we should use. Noise The introductory study of analog and digital communications is completed in Chap-ter X Exclude words from your search Put - in front of a word you want to leave out. Answer: Charles Babbage Question: What is the name of first personal computer?

The step size remains same b. Step size varies according to the values of the input signal c. The quantizer has linear characteristics d.

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 Куда.

Она пропустила эти слова через компьютер и поставила перед ним задачу переставить буквы в новую фразу. Выходила только абракадабра. Похоже, не один Танкадо умел создавать абсолютно стойкие шифры. Ее мысли прервал шипящий звук открываемой пневматической двери. В Третий узел заглянул Стратмор.

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