IMPORTANT TERMINOLOGY (60%) Flashcards
3G, 4G, 5G,
3G- Third generation of mobile data technology, supports HTML pages, videos and music, speeds are still slow.
4G- faster connection speed and mobile hotspots allows users to view digital media on mobile devices, including videos and music. no worries about buffering and long load times
5G- operates in different radio frequencies to 4G, connects more devices to the internet per antenna. can watch a video immediately without experiencing any buffering time.
AUP
acceptable use policy, a set of rules that restricts the way in which a network or website should be used
Intranet and Extranet
intranet- internal website designed for employees in an organization, not available to the public
extranet- external website designed mostly for customers, suppliers, available for the public
Internet of things (IoT)
“thing” term that defines connected items
- collect information and send to another device
- receive information and act on it
- both collect and receive information
Caching
Cache is stored data that can be accessed faster in the future.
Web cache
stores data from recently accessed sites
browser cache
stores data from downloaded files such as videos, images and others can be found on web browsers such as google chrome
network
set of computers sharing resources via network nodes
firewall
a security device that provides protection against cyber attacks by protecting the computer or network from malicious or unnecessary work traffic
ISP
internet service provider, a company providing internet access
NIC
network interface card
POPI act
the protection of personal information act seeks to protect personal data and information from security breaches, discrimination etc
topology
layout of nodes and their physical and logical connections
Bus topology
uses one main cable to which all devices or computers are connected
star topology
each computer is connected to a central device called a switch
