Error Detection

Question 1

What is a parity bit?

Answer 1

A bit which can detect corruption in data by observing whether the amount of 1’s is even or odd.

Question 2

What is Check Sum Error Detection?

Answer 2

CS involves adding each bit together an then dividing it by 256 and observing the remainder. This is then stored and checked after transmission.

Question 3

What is Cyclic Redundancy Checking?

Answer 3

All bits are treated as a single binary number. The mod of this is then stored (16 or 32 bit).

Question 4

What is the most effective form of error detection?

Answer 4

Cyclic Redundancy Checking (CRC)

Question 5

What is the lease effective form of error detection?

Answer 5

Parity Bits