COMPUTER NETWORKING

DATA LINK LAYER WIRED NETWORKS

DATA LINK CONTROL DLC

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The guarantee the detection of upto x errors in all cases, the minimum Hamming distance in a block code must be
A
X
B
X+1
C
X-1
D
X^2
Explanation: 

Detailed explanation-1: -The minimum Hamming distance is the smallest Hamming distance between all possible pairs in a set of words. Solution We first find all the Hamming distances. To guarantee the detection of up to s errors in all cases, the minimum Hamming distance in a block code must be dmin = s + 1.

Detailed explanation-2: -To guarantee the detection of up to 5 errors in all cases, the minimum Hamming distance in a block code must be . Solution: 32.

Detailed explanation-3: -The hamming distance is the minimum number of positions where any two legal code words differ by bit. Hamming distance between 001111 and 010011 is 3.

There is 1 question to complete.