Fundamental of Computer Networks Flashcards
1
Q
PAN/Personal Area Network
A
- Bluetooth data transfer
- Physically close devices(around one person)
- Phone -> Wireless headphones
2
Q
LAN/Local Area Network
A
- Small geographical area(floor, classroom)
- Controlled by one person/organisation
- Connect to Internet
3
Q
WAN/Wide Area Network
A
- Wide geographical area
- Internet is a WAN
- More people/organization manage it
4
Q
Wired network
A
- Connected by fiver optics cable or cooper wires
- Faster connection
5
Q
Wireless network
A
- Using radio waves
- No wires
6
Q
Topology
A
- Way of which devices are wired together
- Star topology
- Bus topology
7
Q
Star topology
A
More devices connected directly to the central device
8
Q
Bus topology
A
Every device is connected to a central cable
9
Q
Protocol
A
It’s an agreed way of communication
10
Q
A.T.N.L.
A
Application Transport Network Link (Layers)
11
Q
Application layer
A
Where the application operate
12
Q
Transport layer
A
Takes the date and makes it in packets and transport it numbered so it can be reassembled
13
Q
Network layer
A
Give the IP of the locations where to arrive and sent from on the packets
14
Q
Link layer
A
Physically sent the packets the network
15
Q
Authentication
A
Simply requiring users to provide credentials such as username and password
