C is not a correct answer because a switch learns which mac-address is tied to which port based on the source mac-address in the frame. So in C all SW2 would learn is that R1's mac-address is on fa0/4.
But since the router communicates with those two PCs, wouldn't it have to at some point send an ARP broadcast using their IP to find out their MAC address before it can deliver an ethernet frame to each of those hosts?
I don't disagree with what you are saying but whereas 2 & 4 will result in SW2 learning the mac-addresses of PC2 & PC3 answer 3 does not result in this, rather you have to assume that something else has happened first.
What if for example you entered static entries in the arp table on R1 ?
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.