Week 12: Link Layer Error

What would be the parity bit for the following word using 1-bit even parity?

1011 1001 1111 0101

What would be the parity bit for the following word using 1-bit even parity?

1000 1001 1111 0101

(Two bits were flipped from the previous question)

What are the parity bits for the columns be?

1 0 1 1

1 0 0 1

1 1 1 1

0 1 0 1

What are the 2D parity bits for the rows be, starting from the top?

1 0 1 1

1 0 0 1

1 1 1 1

0 1 0 1

What is the overall parity bit?

1 0 1 1

1 0 0 1

1 1 1 1

0 1 0 1

The row parity bits are: 0010

The column parity bits are: 1011

0 0 1 1

1 0 1 1

1 1 0 1

1 1 0 0

What was the original message?

Calculate the internet checksum given the following two words:

0001 1111 0010 1011

0100 1110 0101 0110