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Module 7 Flash Cards

TermDefinition
PAN (personal area network) A small network consisting of personal devices at close range: the devices can include smartphones, PDAs, and notebook computers.
LAN (local area network) A network bound by routers or other gateway devices that usually covers only a small area, such as one building.
WMN (wireless mesh network) Many wireless devices communicating directly rather than through a single central device. This technology is commonly used in IoT wireless networks.
MAN (metropolitan area network) A type of network that covers a large city or campus
WAN (wide area network) A network or group of networks that span a large geographical area.
Internet service provider (ISP) An organization, such as Charter, that provides individuals and organizations access to the Internet via a technology such as cable Internet, DSL, or cellular
Bandwidth In relation to analog communication, the range of frequencies that a communications channel or cable can carry. In general use, the term refers to the volume of data that can be transmitted on a bus or over a cable; bandwidth is stated in bits per second
data throughput See bandwidth
latency Delays in network transmissions that result in slower network performance. Latency is measured by the round trip time it takes for a data packet to travel from source to destination and back to the source
3G A third generation cellular wireless Internet connection standard used with CDMA or GSM mobile phone services that allows for transmitting data and video.
4G A fourth generation cellular wireless Internet connection standard typically used with the LTE (Long Term Evolution) technology; 4G transmits data and video up to 1 Gbps
5G A fifth generation cellular wireless Internet connection standard expected to transmit 10-50 Gbps. 5G is not yet released
ISDN (Integrated Services Digital Network) A broadband telephone line that can carry data at about five times the speed of regular telephone lines. Two channels (telephone number) share a single pair of wires ISDN has been replaced DSL
Broadband A transmission technique that carries more than one type of transmission on the same medium, such as voice and DSL on a regular telephone line
802.11a An outdated Wi-Fi standard that transmitted up to 54 Mbps.
802.11b An outdated Wi-Fi standard that transmitted up to 11 Mbps and experienced interference with cordless phones and microwaves
802.11g An outdated Wi-Fi standard that was compatible with and replaced 802.11b
802.11n See IEEE 802.11n
multiple input/multiple output (MIMO) A feature of the IEEE 802.11n/ac standards for wireless networking whereby two or more antennas are used at both ends of transmissions to improve performance
802.11ac see IEEE 802.11ac
beamforming A technique supported by the IEEE 802.11ac Wi-Fi standard that can detect the location of connected devices and increase signal strength in that direction
Created by: BlueSol
 

 



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