Demonstrate an Understanding of Network Masks and CIDR NotationKnowledge of the Differences Between Private and Public “Dotted Quad” IP AddressesKnowledge About Common TCP and UDP Ports and Services (20, 21, 22, 23, 25, 53, 80, 110, 123, 139, 143, 161, 162, 389, 443, 465, 514, 636, 993, 995)Knowledge About the Differences and Major Features of UDP, TCP, and ICMPKnowledge of the Major Differences Between IPv4 and IPv6Knowledge of the Basic Features of IPv6/etc/servicesIPv4, IPv6SubnettingTCP, UDP, ICMP