GCSE - Networks Flashcards
What are the 3 Topologies?
Star Topology
Ring Topology
Bus Topology
What networks cover a geographical area?
WAN - Wide Area Network
LAN - Land Area Network
Name two wireless methods of sending data
WiFi
Bluetooth
Give 2 cons of WiFi
- It has higher latency than wired
- It has slower speeds
- It has a shorter range than wired
Give 2 cons of wired
- It is not very mobile
- It is prone to interferance
Give 2 pros of wireless
- It is very mobile
- It is very easy to setup
- It is an easy way to get network access in a house
Give 2 pros of Wired
- It has very high speed
- It has lower latency than wired
- It is very simple to conect devices
- It is quite cheap
Give 2 pros of fibre optics
- It has very low latency
- It has very high speeds
- It is functional over a very long distance
Give 2 cons of fibre optics
- It requires specialist equipment to run
- It is very fragile
- It is very expensive
Name ALL the protocols
TCP, UDP, HTTP, HTTPS, POP3, SMTP, IMAP, ETHERNET, WiFi, FTP
State the calculation for time to send data
Time (s) = Data (bits) / Network Speed (bits)
Define Bandwidth
Bandwidth is the amount of data that can be sent through a connection at once.
Define Latency
The amount of time it takes for a packet to get from the source to the destination.
Define frequency
Frequency is the amount of time something occurs.
What is a PAN?
A PAN is a small network is a network of devices that is formed when tou connect devices together. Eg. Connecting a headset to a phone via bluetooth.
