Mind map
UNIT 1.5
Map content
UNIT 1.5
wifi benefits
A computer network is a number of computers linked together to allow them to share resources. Networked computers can share data, hardware and software.
Topology
- Mesh Netwok
- wifi
- star network
- encryption
- Ethernet
networks all around you
able to transfer speeds
MAC addressing protocols
(example IP address) 192.456.4.56
data traveling on a network are sent as packets
each devices on the internet has a unique IP address which is sent as a packet to identify which computer to send data to.
tend to have slower transfer speeds
they are vestry reliable.
if one connection fails it does not effect the rest of the network
TCP transmission control protocol
IP internet protocol
network address destination
payload
network address source
packet number/sequence
its relatively easy to add additional devices onto the netwrok
The MAC address is embedded into the device when it is manufactured and the owner cannot change it.
A MAC address is a unique code which is built into the Network Interface Card (NIC)
Each address is individual and is made up of 48 bits, usually written in hexadecimal for ease.
TCP/IP (Transmission Control Protocol/Internet Protocol) HTTP (Hyper Text Transfer Protocol) HTTPS (Hyper Text Transfer Protocol Secure) FTP (File Transfer Protocol) POP (Post Office Protocol) IMAP (Internet Message Access Protocol) SMTP (Simple Mail Transfer Protocol)
The address is broken down into four numbers which can represent a number between 0 and 255 separated by a full stop.
POP3- post office protocol version 3
POP-post office protocol
FTP-file transfer protocol
protocol is a set of rules that govern how devices communicate
protocols are divided into layers.
network communication components are standardised which helps to ensure that different types of hardware and software are able to communicate
through separating the overall network communication process it makes troubleshooting easier should an error occur.
HTTP-used by web browsers to communicate with servers
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- Mind Map on UNIT 1.5, created by Tom Coleman-Greene on 12/02/2018.
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- Tom Coleman-Greene
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