Given the last fragment size is 341.0 bytes which includes 125 of header bytes. Also given, the MTU that the network is following is 1109. If the fragment offset of the last fragment is 1023.0 and the initial byte number is 312. The following textboxes are for numerical inputs,so please answer with numbers only. What is the data size of the last fragment? What is the data size of the original packet? (b) Given the routers starting from R1 to R85 are connected in series. R85 is pinging a remote router and succeeds in getting a reply with the TTL value 86. Which router was it pinging if the network system is using a max TTL value of 142? Write down the router number only. e.g. 9