When the IPv$6$ protocol is introduced, does the ARP protocol have to be changed? If so$,$ are the changes conceptual or technical?A $1-$km$-$long, $10-$Mbps CSMA$/$CD LAN $($not $802\mathrm{.}3)$ has a propagation speed of $200$ m$/$sec$.$ Repeaters are not allowed in this system. Data frames are $256$ bits long, including $32$ bits of header, checksum, and other overhead. The first bit slot after a successful transmission is reserved for the receiver to capture the channel in order to send a $32-$bit acknowledgement frame. What is the effective data rate, excluding overhead, assuming that there are no collisions?