BCH RS Codes - Electronic Engineering (MCQ) questions & answers

1)   In Minimum Distance Separable (MDS) codes, the minimum distance is one more than the number of _________.

a. Information bits
b. Symbol bits
c. Parity check bits
d. None of the above
Answer  Explanation 

ANSWER: Parity check bits

Explanation:
No explanation is available for this question!


2)   In RS code, the length is ____less than number of symbols in symbol set (q).

a. One
b. Two
c. Three
d. Infinite
Answer  Explanation 

ANSWER: One

Explanation:
No explanation is available for this question!


3)   Decoding of RS code comprises the determination of error _______

A. position
B. magnitude
C. angle
D. frequency


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

ANSWER: A & B

Explanation:
No explanation is available for this question!


4)   In Frame Check Sequence (FCS), which code is used if character length is 6 bit and generates 12 bit parity check bits?

a. CRC-12
b. CRC-16
c. CRC-32
d. CRC-CCITT
Answer  Explanation 

ANSWER: CRC-12

Explanation:
No explanation is available for this question!


5)   If the errors are corrected at _______end/s, it is known as 'Forward Error Correction' (FEC).

a. Transmitter
b. Receiver
c. Both a and b
d. None of the above
Answer  Explanation 

ANSWER: Receiver

Explanation:
No explanation is available for this question!


6)   Which type of ARQ system introduces the transmission delay between the transmitter and receiver before the reception of frame at receiver for the purpose of error detection?

a. Go-back-N ARQ
b. Selective Repeat ARQ
c. Stop-and-Wait ARQ
d. None of the above
Answer  Explanation 

ANSWER: Stop-and-Wait ARQ

Explanation:
No explanation is available for this question!


7)   In minimal polynomial, _______degree polynomial is present with coefficients in the basefield along with the zeros in extension field.

a. largest
b. constant
c. smallest
d. unpredictable
Answer  Explanation 

ANSWER: smallest

Explanation:
No explanation is available for this question!


8)   Generally, a primitive polynomial of degree 'm' is an irreducible polynomial in such a way that it is a factor of xn + 1, where 'n' = ______

a. 2m - 1
b. m/n - 1
c. (m+1) /2
d. m-n-1
Answer  Explanation 

ANSWER: 2m - 1

Explanation:
No explanation is available for this question!


9)   BCH codes exhibit the multiple error correcting capability with the provision of selecting _________.

a. Alphabet size
b. Block length
c. Code rates
d. All of the above
Answer  Explanation 

ANSWER: All of the above

Explanation:
No explanation is available for this question!


10)   For (n,k) binary BCH code, how are the parity check bits (n – k) specified?

a. m + tc
b. m - tc
c. mtc
d. m/tc
Answer  Explanation 

ANSWER: mtc

Explanation:
No explanation is available for this question!