Q9 from the Quiz really bothered me:
From what I understood from the course, the HW and the TAs is the following:
(1)Proxy ARP => ARP IP Destination: The End System's Interface IP. (2)Default Gateway => ARP IP Destination : Default Router's IP.
Now I can not make sense of how an end system A in IP subnet using (1) would have more/less ARP requests than if in a subnet using (2)... it is simply the Destination Ip address that changes...
And of course... this is again ambiguous because Mac Caching is implementation specific and not seen in the course.... so if Default Gateway => Less Arp Requests. Does this => that There is A Cache to map the Ip of default router to its map... and again this cache will have a time limit ...