1. 6.2 Networking
1.1. Types of Networks
1.1.1. LAN
1.1.2. WAN
1.1.3. VPN
1.2. Components
1.2.1. Servers
1.2.1.1. File servers
1.2.1.2. Web servers
1.2.1.3. Proxy servers
1.2.1.4. Print servers
1.2.1.5. Mail servers
1.2.1.5.1. BACKUPS
1.2.2. Workstations
1.2.3. Hubs and switches
1.2.4. Repeaters
1.2.5. Gateways
1.2.6. Bridges
1.2.7. Routers
1.2.8. Network interface card
1.2.9. Network operating system (NOS)
2. 6.1 - Communication Networks
2.1. Nature and Role
2.1.1. A communications network is a set of products concepts and services that enable the connection of computer systems. Their purpose is to transmit data, in a variety of forms (for example, voice and video) between the systems. As they become larger and more complicated, networks consist of computers and their peripheral devices. Each device on a network is called a node.
2.2. advantages
2.2.1. ability to share peripheral devices
2.2.2. central administration of application programs and other software.
2.2.3. sharing a single Internet connection.
2.2.4. access to shared files
2.2.5. access to databases.
2.2.6. ability to play networked games
2.3. disadvantages
2.3.1. cost of installation.
2.3.2. administration and maintenance.
2.3.3. equipment failure.
2.3.4. security.
3. 6.4
4. 6.4
4.1. topic
4.1.1. associatd
4.1.1.1. ring diagrams are all connecte together
5. 6
6. 6.6
6.1. 55
6.2. 58252
6.3. Factors influencing media transmission
6.3.1. Cost
6.3.2. Distance
6.3.3. The number of nodes
6.3.4. Sustainability and expansion (scaling)