network topologies

1. a common connection point for devices in a network
4. a piece of computer hardware or software that accesses a service made available by a server
5. A computer network that spans a relatively large geographical area
6. a communication channel that sends information in one direction only
7. term commonly refers to Internet access via a variety of high-speed networks
9. protects a network or system from unauthorized access
12. the arrangement of a network, including its nodes and connecting lines
13. A computer or device on a network that manages network resources

2. a type of computer network device that provides interconnection with other bridge networks
3. a device that uses the photons in visible light or infrared beams
5. a special computer designed for technical or scientific applications
8. a set of computers connected together for the purpose of sharing resources
10. a device that forwards data packets along networks
11. In tree structures a point where two or more lines meet