Lesson 4: Wireless Networking Flashcards
Access Point
A transceiver used to interconnect a wireless and a wired LAN
Ad Hoc
Another term used to describe an independent network
Backscatter
Refers to the reflection of the radio waves striking the RFID tab and reflecting back to the transmitter source
Basic Service Set (BSS)
Term used to describe an independent network
Beacon
Used to identify a wireless link and to verify the integrity of a wireless link
Beamforming
A technique used to direct transmission of the radio signal to a specific device
BWA
Broadband wireless access
CSMA/CA
Carrier sense multiple access/collision avoidance
DSSS
Direct sequence spread spectrum
EAP
Extensible Authentication Protocol
Extended Service Set (ESS)
The use of multiple access points to extend user mobilitiy
FHSS
Frequency hopping spread spectrum
Hand-off
When the user’s computer establishes an association with another access point
Hopping Sequence
The order of frequency changes
ISM
Industrial, scientific and medical
Last Mile
The last part of the connection from the telecommunications provider to the customer
MIMO
A space-division multiplexing technique where the data stream is split into multiple parts called spatial streams
Multiuser MIMO (MUMIMO)
Use of MIMO technology with eight spatial streams
NLOS
Non-line-of-sight
OFDM
Orthogonal frequency division multiplexing
Paging Procedure
Used to establish and synchronize a connection between two Bluetooth devices
Pairing
When a Bluetooth device is set up to connect to another Bluetooth device
Passkey
Used in Bluetooth Security to limit outsider access to the pairing
Piconet
An ad hoc network of up to eight Bluetooth devices
Pseudorandom
The number sequence appears random but actually repeats
Radio Frequency Identification (RFID)
A technique that uses radio waves to track and identify people, animals, objects, and shipments
RADIUS
Remote Authentication Dial-In User Service
Roaming
The term used to describe a user’s ability to maintain network connectivity as he moves through the workplace
Site Survey
Performed to determine the best location(s) for placing the access point(s) to provide maximum RF coverage for the wireless clients
Slotted Aloha
A wireless network communications protocol technique similar to the Ethernet protocol
SSID
Service set identifier
Transceiver
A transmit/receive unit
War Driving
Using wireless equipment to detect wireless management packets
Wi-Fi
Wi-Fi Alliance—an organization that tests and certifies wireless equipment for compliance with the 802.11x standards
WiMAX
A broadband wireless system based on the IEEE 802.16e standard
WLAN
Wireless local area network
WPA
Wi-Fi Protected Access
