1. Network - collection of computers and devices that are connected together to communicate and data exchange

2. Nodes - devices that are connected to a network like computers, servers, printers, routers, switches and other devices

3. Protocol - a set of rules and standards that govern how data is transmitted over a network; examples are TCP/IP, HTTP and FTP

4. Topology - refers to the physical and logical arrangement of nodes

5. Service Provider Networks - give permission to take Network Capacity

6. IP Address - unique numerical identifier

7. DNS - Domain Name System

8. Firewall

Learn: networking Exam