Question

A packet contains 4 bytes: 1010 0110 1001 1101. What would the parity bits be for this packet if a two dimensional even parity scheme was used with a minimum length checksum field? Give an example of a double bit error that can be detected but not corrected by this scheme.

Answer 1

Answer:2

Step-by-step explanation:

The minimum length checksum field should be 4*4 matrix.

For our data, two dimensional (even) parity:

Kindly note: Two‐dim Parity = Generalization of the simple (one‐dim) parity scheme: 1. Form an MxN matrix of bits, then 2. Add a (even or odd) parity bit to each row and to each column