Linear Block Codes - Electronic Engineering (MCQ) questions & answers

1)   Basically, Galois field consists of ______ number of elements.

a. Finite
b. Infinite
c. Both a and b
d. None of the above
Answer  Explanation 

ANSWER: Finite

Explanation:
No explanation is available for this question!


2)   Which buffer size is required by the interleaved codes at the transmitter for the accumulation of λ code words?

a. Small
b. Medium
c. Large
d. All of the above
Answer  Explanation 

ANSWER: Large

Explanation:
No explanation is available for this question!


3)   On which factor/s do/does the error probability depend/s after decoding?

a. Number of error vectors
b. Error probability of symbol transmission
c. Both a and b
d. None of the above
Answer  Explanation 

ANSWER: Both a and b

Explanation:
No explanation is available for this question!


4)   In Repetition Code, how many information bit/s is/are present in addition to n-1 parity bits?

a. One
b. Two
c. Four
d. Eight
Answer  Explanation 

ANSWER: One

Explanation:
No explanation is available for this question!


5)   For a (6,4) block code where n = 6, k = 4 and dmin = 3, how many errors can be corrected by this code?

a. 0
b. 1
c. 2
d. 3
Answer  Explanation 

ANSWER: 1

Explanation:
No explanation is available for this question!


6)   Which amount the following is capable of correcting any combination of three or fewer errors random errors in a block of 23 bits?

a. Hamming codes
b. Interleaved code
c. Repetition codes
d. Golay code
Answer  Explanation 

ANSWER: Golay code

Explanation:
No explanation is available for this question!


7)   The minimum distance of linear block code (dmin) is equal to minimum number of rows or columns of HT, whose  _____ is equal to zero vector.

a. sum
b. difference
c. product
d. divison
Answer  Explanation 

ANSWER: sum

Explanation:
No explanation is available for this question!


8)   In a linear code, the minimum Hamming distance between any two code words is ______minimum weight of any non-zero code word.

a. Less than
b. Greater than
c. Equal to
d. None of the above
Answer  Explanation 

ANSWER: Equal to

Explanation:
No explanation is available for this question!


9)   Which among the following represents the code in which codewords consists of message bits and parity bits separately?

a. Block Codes
b. Systematic Codes
c. Code Rate
d. Hamming Distance
Answer  Explanation 

ANSWER: Systematic Codes

Explanation:
No explanation is available for this question!


10)   Which among the following is/are the essential condition/s for a good error control coding technique?

a. Faster coding & decoding methods
b. Better error correcting capability
c. Maximum transfer of information in bits/sec
d. All of the above
Answer  Explanation 

ANSWER: All of the above

Explanation:
No explanation is available for this question!