Network basics Flashcards
What is a personal area network?
A network organised around an individual or a couple of individuals with a range of a few metres
What is a small network called?
PAN and a HAN
What is the advantage of personal area network?
To automate connections between mobile devices
What are the disadvantages of a personal area network?
Limited range
Data transmission can be slow
Peripheral devices - pair with one computing device t a time
What is a home area network?
A small network within a home environment that connects devices such as computers, printers, tablets, smartphones, smart TVs and gaming devices
What are the home area network advantages?
Users can access + share their data from any computing device in the home
Users can save money - sharing devices
An internet connection can be shared by all the computing devices in the home
What is an issue with home area network?
Security
What is needed to connect small networks?
Hardware, switch, router
Define switch
Connects computers with cables
Define router
Allows devices to connect to the internet
How is PAN connected?
Bluetooth most common means of connecting devices
How is HAN connected?
Both wireless and wired connection methods are used
What must every computer have when it comes connecting?
wireless-enabled
NIC (Network Interface Controller)
What is part of the wired connection?
UTP (Unshielded Twisted Pair) cable
One end plugs into port (NIC) of computer, other into switch / router
What is part of the wireless connection?
WiFi access point is needed
Devices – wireless-enabled, use radio waves for connectivity
What is WIFI?
wireless network technology - uses radio waves to provide network access, small area
What is the internet?
Large worldwide computer network, consisting of computers and networks linked using communication media
What must every devices connected to the internet have?
Every device that connects to the internet must have its own IP address
What must a device have to connect to the internet?
Internet Service Provider
Internet connection
What is an internet service provider?
A company that has a permanent, fast connection to the internet
What are the two types of internet connection?
Wired connection: ADSL/fibre
Wireless connection: Cellular technology
Define ADSL
Permanent digital connection using a telephone line
Define fibre
Data transmitted using thin glass fibre tubes
Between ADSL and fibre, which one is faster?
Fibre
What does cellular technology allow for?
Mobile access
What connects for cellular technology?
Dongle plugs into USB port
What indicates cellular technology?
3G / 4G (LTE)
