(a) Calculate the value of checksum. Write the steps to find the checksum at the sender site. [10 marks]
(b) Assuming no error occurs during transmission, determine either the data received or not. Write the steps to find the checksum at the receiver site. [10 marks]
(c) Assuming the message is transmitted using the Internet checksum (16-bit words) and the header has the following data:
1000 0110 0101 1010
1010 1100 0110 0000
0111 0001 0010 1010
1000 0001 1011 0101
Find the value of checksum.
