Network Basics Flashcards
A Network is an ________ of a set of devices capable of communication.
interconnection
ex. Personal devices (tablets, smartphones, etc.)
What is the goal for a Network.
- Resource sharing (printers, applications, databases, etc.)
- Load sharing
- Improving reliability and availability
- Providing an additional means of person-to-person communication
- Providing cost efficiency or providing better price-performance ratio (A network of low-end computing systems costs less than a single high-end computing system for equivalent performance)
- Allowing scalability
What are examples of how you use networks every day?
- Early days (remote computer access – telnet, file transfer, email, etc.)
- Instant messaging, World Wide Web
- Social networking (Facebook, Twitter, LinkedIn, etc.)
- Voice over IP (VoIP), video chat (Skype)
- Streaming audio and video (radio and television)
- Videoconferencing, telecommuting (doing work from home), electronic commerce (transfers of info over the internet), etc.
Network Interface Card is _____________________________.
Full-duplex bit-serial synchronous communication
For Network Interface Card, Data rate is expressed in
bits per second (bps)
For Network Interface Card, Mac Address is
48-bits physical Address written as 12 hex digits
e.g., B0-83-FE-6A-47-FF
Example of Network Components
Router
Switch
Hub
Hosts (Client, Server)
Hosts are the devices used by ________________________.
end users to access applications
In order have a network, connect the components together with some _______.
media
Network is defined by 3 branches, ________, _______, & ________.
- Geography
- Topology
- Resource Location
What do they stand for:
PAN: \_\_\_\_\_\_\_\_. LAN: \_\_\_\_\_\_\_\_. CAN: \_\_\_\_\_\_\_\_. MAN: \_\_\_\_\_\_\_\_. WAN: \_\_\_\_\_\_\_\_.
PAN: Personal-area network LAN: Local-area network CAN: Campus-area network MAN: Metropolitan-area network WAN: Wide-area network
PAN: Personal-Area Network
Scale: ______.
Distance: ________.
Wired: ________.
Wireless: ________.
Components: ________, ________, ________, ________, and so on.
Scale: Human
Distance: A few meters
Wired: USB
Wireless: Bluetooth
Components: PCs, headphones, keyboards, smartphones, and so on
LAN: Local-Area Network
Scale: ______.
Distance: ________.
Wired: ________.
Wireless: ________.
Components: ________, ________, ________, ________, and so on.
Scale: Room or building
Distance: Usually 100 meters or less
Wired: Cat 6 or fiber
Wireless: 802.11
Components: PCs, routers, switches, servers, printers, wireless access points, and so on
CAN: Campus-Area Network
Scale: ______.
Distance: ________.
Wired: ________.
Wireless: ________.
Components: ________, ________, ________, ________, and so on.
Scale: Cluster of buildings
Distance: Usually a mile or less
Wired: Fiber, coax
Wireless: 802.11, microwave
Components: Routers, switches, wireless bridges, and so on
MAN: Metropolitan-Area Network
Scale: ______.
Distance: ________.
Wired: ________.
Wireless: ________.
Components: ________, ________, ________, ________, and so on.
Scale: City
Distance: Usually a few miles or less
Wired: Fiber, coax
Wireless: Microwave
Components: Routers, switches, wireless bridges, and so on