✓ Recognizing the purpose of networking services such as DHCP, DNS, NAT, and authentication services
✓ Understanding the difference between hubs, bridges, switches, and routers
✓ Understanding the OSI model and what devices and protocols run at each layer of the
OSI model
✓ Knowing when to use a straight-through cable or a crossover cable
✓ Understanding the difference between a collision domain and a broadcast domain