Alter the hosts file to map www.google.com to yahoo's IP address and try to do google search. Remove alteration to host file and repeat.
Determine the domain name of 128.252.160.200 (reverse the address and add.in-addr.arpa)
Determine the owner of wustl.edu domain
Determine route from your computer to www.google.com
Determine the MAC address of your computer
Print your ARP cache table. Find a server on your local network. Change its ARP entry in your computer to point to your computer's MAC address. Print new ARP cache table. Now use the service and see what happens.
Print your routing table and explain each line.
Determine the number of packets sent with "destination unreachable"
Determine the location of 128.252.166.147