1 votes 1 votes 32: A sender needs to send the four data items Ox3456, OxABCC, Ox02BC, and OxEEEE. Answer the following: a. Find the checksum at the sender site. b. Find the checksum at the receiver site if there is no error. Computer Networks computer-networks error-detection + – Nishi Agarwal asked Mar 17, 2019 Nishi Agarwal 5.1k views answer comment Share Follow See 1 comment See all 1 1 comment reply ankitgupta.1729 commented Mar 17, 2019 reply Follow Share data items given in hexadecimal. So, convert it into binary and then add all these binary codes.if there is a carry then add it. finally do the 1's complement of the result after addition and it will be called 16-bit checksum at sender side. append it to the data items and send it to receiver. if at receiver after adding these codes,if answer is zero then there is no error and checksum will be same at receiver. 1 votes 1 votes Please log in or register to add a comment.