ICT 2023 Flashcards
what is meant by ‘tethering’ ?
connecting to the internet through hotspot
state 2 features how a LAN is different from a WAN
- LAN covers a smaller geographical area
- a WAN is a collection of LANs
what is the role of a WAP ( wireless access point) ?
to provide a wireless conecction to a NETWORK
state 2 wireless connections used by mobile phones
- blue tooth
- wifi
what is latency?
the time taken for data packets to be sent between devices in a network
what i the function of a VPN?
provides an encrypted connection to a LAN using a WAN
describe 2 types of malware
- adware that displays unwanted adverts
- trojans that trick users by appearing as legitimate SOFTWARE
how does filtering work in a network?
a filter will prevent access to blocked sites
how do cookies work in showing you relatable content?
cookies can track user’s previous intereactions with content to provide personalized suggestions for related items
explain why moving closer to the WAP reduces transfer time
data wont have to be sent multiple times because the signal strength increases the closer u are to the WAP
how does compressing data affect the speed of transfer?
data transfer would be quicker because less bandwidth is needed as the file size is smaller
state 2 protocols
HTTPS
WEP
state how encryption prevents the data from being understood
it ENCIPHERS the data
what are the 2 parts of a IP
- network ID
- device ID
