University of Benghazi Network Operating System : LAB 1: Review Ipconfig /all Ping <ip address> ARP Cache using ARP Utility Arp –a Arp –d (delete the ARP cache) Tracert <ip address> Nslookup (it uses the fully qualified domain name (FQDN) of a computer) ICMP (Internet Control Message Protocol) Ipconfig /displaydns 1 2 3