Modify the hosts file to map www.google.com to yahoo's IP address and try to do a google search. Remove the modification to the host file and repeat.
Find the domain name of 128.252.160.200 (reverse the address and add.in-addr.arpa)
Find the owner of wustl.edu domain
Find route from your computer to www.google.com
Find 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 (up to line #20 if too many)
What is the number of packets sent with "destination unreachable"
Find the location of 128.252.166.147 (use ipaddresslocation.org)