Information Theory And Coding — Part 1 MCQs with Explanations

Quite different from FDM and TDM is the correct answer to “Quadrature multiplexing is”. This question is standard in competitive examination syllabi for Information Theory And Coding.

C2 ≈ C1 + B is the correct answer to “A communication channel with AWGN operating at a signal to noise ratio SNR >> 1 and bandwidth 6 has capacity C 1 . If the SNR is doubled keeping B constant, the resulting capacity C 2 is given by”. This question is standard in competitive examination syllabi for Information Theory And Coding.

1 and 2 is the correct answer to “To obtain the transfer function of a convolutional code, the splitting of all-zero state takes place into . . . . . . . . 1. Starting state 2. First return to all-zero state 3. In-between state”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Sequential Decoding is the correct answer to “Which decoding method involves the evaluation by means of Fano Algorithm”. This question is standard in competitive examination syllabi for Information Theory And Coding.

JPEG is the correct answer to “Which among the following compression techniques is/are intended for still images”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Variable to fixed length algorithm is the correct answer to “Lempel-Ziv algorithm is”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Receiver is the correct answer to “If the errors are corrected at . . . . . . . . end/s, it is known as 'Forward Error Correction' (FEC).”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Smallest is the correct answer to “d free is defined as the Euclidean distance of coded signal in terms of . . . . . . . . possible distance between all allowed sequences.”. This question is standard in competitive examination syllabi for Information Theory And Coding.

False is the correct answer to “The event with minimum probability has least number of bits.”. This question is standard in competitive examination syllabi for Information Theory And Coding.

xn + 1 is the correct answer to “For the generation of a cyclic code, the generator polynomial should be the factor of . . . . . . . .”. This question is standard in competitive examination syllabi for Information Theory And Coding.

0 is the correct answer to “For a (6, 4) block code where n = 6, k = 4 and d min = 3, how many errors can be corrected by this code”. This question is standard in competitive examination syllabi for Information Theory And Coding.

1 and 2 is the correct answer to “Decoding of RS code comprises the determination of error . . . . . . . . 1. Position 2. Magnitude 3. Angle 4. Frequency”. This question is standard in competitive examination syllabi for Information Theory And Coding.

1000 samples/sec is the correct answer to “If a noiseless channel bandlimited to 5 kHz is sampled every 1msec, what will be the value of sampling frequency”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Bits is the correct answer to “When the base of the logarithm is 2, then the unit of measure of information is”. This question is standard in competitive examination syllabi for Information Theory And Coding.

4, 1, 3, 2 is the correct answer to “Consider the assertions related to decoding process of cyclic code. Which among the following is a correct sequence of steps necessary for the correction of errors? 1. Syndrome determination after the division of r(x) & g(x) 2. Addition of error pattern to received code word 3. Selection of error pattern corresponding to the syndrome 4. Preparation of table comprising error patterns and syndromes”. This question is standard in competitive examination syllabi for Information Theory And Coding.

One is the correct answer to “In RS code, the length is . . . . . . . . less than number of symbols in symbol set (q).”. This question is standard in competitive examination syllabi for Information Theory And Coding.

All of the above is the correct answer to “BCH codes exhibit the multiple error correcting capability with the provision of selecting . . . . . . . .”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Second is the correct answer to “Information rate basically gives an idea about the generated information per . . . . . . . . by source.”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Both A and B is the correct answer to “On which factor/s do/does the error probability depend/s after decoding”. This question is standard in competitive examination syllabi for Information Theory And Coding.

1 is the correct answer to “What is the value of leading coefficient of a monic polynomial”. This question is standard in competitive examination syllabi for Information Theory And Coding.

40 is the correct answer to “In a GSM system, 8 channels can co-exist in 200 kHz bandwidth using TDMA. A GSM based cellular operator is allocated 5 MHz bandwidth. Assuming a frequency reuse factor of $$\frac{1}{5},$$ i.e. a five-cell repeat pattern, the maximum number of simultaneous channels that can exist in one cell is”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Remainder Polynomial is the correct answer to “In decoding of cyclic code, which among the following is also regarded as 'Syndrome Polynomial'”. This question is standard in competitive examination syllabi for Information Theory And Coding.

VRC is the correct answer to “Which among the following error detecting technique is supposed to be parity bit associated with character code”. This question is standard in competitive examination syllabi for Information Theory And Coding.

0 is the correct answer to “When X and Y are statistically independent, then I (x, y) is”. This question is standard in competitive examination syllabi for Information Theory And Coding.

$$\frac{3}{2}$$ is the correct answer to “Let U and V be two independent and identically distributed random variables such that $$P\left( {U = + 1} \right) = P\left( {U = - 1} \right) = \frac{1}{2}.$$ The entropy H(U + V) in bits is”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Memory order is the correct answer to “While representing the convolutional code by (n, k, m), what does 'm' signify or represent in it”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Deciphering is the correct answer to “Which coding terminology deals with the inverse operation of assigned words of second language corresponding to the words in the first language”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Channel is very noisy & No information is received is the correct answer to “When probability of error during transmission is 0.5, it indicates that”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Option "Compression of audio" is the correct answer for this question under Information Theory And Coding.

All of the above is the correct answer to “Which among the following is/are the essential condition/s for a good error control coding technique”. This question is standard in competitive examination syllabi for Information Theory And Coding.

$$\frac{7}{8}$$ is the correct answer to “A source produces 4 symbols with probability $$\frac{1}{2},\frac{1}{4},\frac{1}{8}$$ and $$\frac{1}{8}$$ For this source, a practical coding scheme has an average codeword length of 2 bits/symbols. The efficiency of the code is”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Parity check bits is the correct answer to “In Minimum Distance Separable (MDS) codes, the minimum distance is one more than the number of . . . . . . . .”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Bidirectional frame is the correct answer to “B-frame is also known as”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Sphere Packing is the correct answer to “Which approach plays a cardinal role in supporting the results obtained regarding the information capacity theorem”. This question is standard in competitive examination syllabi for Information Theory And Coding.

4500 bits/sec is the correct answer to “A source generates three symbols with probabilities 0.25, 0.25, 0.50 at a rate of 3000 symbols per second. Assuming independent generation of symbols, the most efficient source encoder would have average bit rate is”. This question is standard in competitive examination syllabi for Information Theory And Coding.

4 is the correct answer to “For designing of (4, 1) cyclic repetition code, what would be the order of the generator polynomial g(x)”. This question is standard in competitive examination syllabi for Information Theory And Coding.

1 and 2 is the correct answer to “Which among the below stated logical circuits are present in encoder and decoder used for the implementation of cyclic codes? 1. Shift Registers 2. Modulo-2 Adders 3. Counters 4. Multiplexers”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Distance between sequences is the correct answer to “The distance between each symbol in given sequence and reference sequence is known as . . . . . . . .”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Large is the correct answer to “Which buffer size is required by the interleaved codes at the transmitter for the accumulation of λ code words”. This question is standard in competitive examination syllabi for Information Theory And Coding.

Small is the correct answer to “According to Shannon's second theorem, it is not feasible to transmit information over the channel with . . . . . . . . error probability, although by using any coding technique.”. This question is standard in competitive examination syllabi for Information Theory And Coding.