A TCP/IP stack is used to send user data from Station A to Station D through intermediate nodes B and C. Station A use a 802.3 transmission frame as does Station D. The network for which B and C are edge routers is a packet switching X.25 network. Station A's IP layer is restricted to passing 500 octet IP-PDUs to the LLC. Assume the TCP layer at Station A passes a TCP-PDUof 9,600 octets to its IP layer. i) Determine the number of IP-PDU's to be passed to the LLC layer. ii) Determine the largest payload provided to an Ethernet frame (assume LLC control of 1 octet) iii) Determine the TCP-PDU effective bit rate of A, relative to the 802.3 bit rate of R bps.?