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 $802\mathrm{.}3$ transmission frame as does Station D$.$

The network for which B and C are edge routers is a packet switching X$\mathrm{.}25$ 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 $802\mathrm{.}3$ bit rate of R bps