# Information Theory Questions: Multiple Choice Questions

Information Theory Questions. Questions And Answers (MCQs) related to Information Theory Questions in Electronics Engineering.

## Information Theory Questions

In discrete memoryless sources, the current letter produced by a source is statistically independent of ??

a. Past output
b. Future output
c. Both a and b
d. None of the above

In the Trellis diagram, what do/does the horizontal axis represent/s ??

a. Continuous-time
b. Discrete-time
c. Sampled time
d. All of the above

The distance between each symbol in a given sequence and a reference sequence is known as ??

a. Euclidean Distance
b. Distance between sequences
c. Manmattan Distance
d. Hamming Distance

Which coding terminology deals with the inverse operation of assigned words of the second language corresponding to the words in the first language ??

a. Enciphering
b. Deciphering
c. Codeword
d. Codebook

### Electronics Engineering Questions

For the 4 states of an encoder on the vertical axis of the Trellis diagram, what do/does the solid line indicate/s ??

a. ‘0’ input
b. ‘1’ input
c. Both a and b
d. None of the above

dfree is defined as the Euclidean distance of coded signal in terms of _________ possible distance between all allowed sequences ??

a. smallest
b. largest
c. average
d. constant

Huffman coding technique is adopted for constructing the source code with ________ redundancy ??

a. Maximum
b. Constant
c. Minimum
d. Unpredictable

Which decoding method involves the evaluation by means of the Fano Algorithm ??

a. Maximum Likelihood Decoding
b. Sequential Decoding
c. Both a and b
d. None of the above

Information Theory Questions

For designing trellis code, the emphasis must be on maximizing ??

a. Euclidean distance between code vectors
b. Hamming distance of error-correcting codes
c. Both a and b
d. None of the above

Which bitmap file format/s support/s the Run Length Encoding (RLE) ??

a. TIFF
b. BMP
c. PCX
d. All of the above

For a received sequence of 6 bits, which decoding mechanism deals with the selection of best-correlated sequence especially by correlating the received sequence and all permissible sequences ??

a. Soft Decision Decoding
b. Hard Decision Decoding
c. Both a and b
d. None of the above

For designing a communication system, which among the following parameters should be maximum ??

A. Transmission rate
C. Error probability
D. Bandwidth requirement

a. A & B
b. C & D
c. A & C
d. B & D

Information Theory Questions

In dictionary techniques for data compaction, which approach of building a dictionary is used for the prior knowledge of the probability of the frequently occurring patterns ??

a. Static Dictionary
c. Both a and b
d. None of the above

To obtain the transfer function of a convolutional code, the splitting of the all-zero state takes place into ??

A. starting state
C. in-between state

a. A & B
b. B & C
c. A & C
d. None of the above

For fixed symbol rate, increase in bits/symbol ultimately improves rb/B bits/s/Hz & hence, regarded as ??

a. Power efficiency
b. Spectral efficiency
c. Transmission efficiency
d. Modulation efficiency