Anter the initial request for the index page of INTRO$-$wireshark.html$,$ what HTTP response header tag indicates when the request resource was modified last? Specify the HTTP Response Header Tag name only, not the value of the tag.

Question $2$

$20$ pts

Look at the response to the first HTTP GET request, what is the name of the server that is servicing the response? Look for the HTTP header tag "Server:" from the response to the GET.