Ch 22

Front 1

802.11a

Back 1

Wireless networking standard that operates in the 5 GHz band. Max theoretical throughput is 54 Mbps.

Front 2

802.11ac

Back 2

Wireless networking standard that operates in the 5 GHz band. Uses MIMO and MU-MIMO for a theoretical throughput of 1 Gpbs.

Front 3

802.11b

Back 3

Wireless networking standard that operates in the 2.4 GHz band. Max theoretical throughput is 11 Mbps.

Front 4

802.11g

Back 4

Wireless networking standard that operates in the 2.4 GHz band. Max theoretical throughput is 54 Mbps. Backwards compatible with 802.11b.

Front 5

802.11n

Back 5

Wireless networking standard that operates in the 2.4 and 5 GHz band. Uses MIMO for a theoretical throughput of 100+ Mbps.

Front 6

ad hoc mode/peer-to-peer mode

Back 6

Decentralized wireless network mode, AKA peer to peer mode where each wireless node is in meshed contact with every other node.

Front 7

AES (Advanced Encryption Standard)

Back 7

A block cipher created in the late ‘90s that uses a 128-bit block and a 128-, 192- or 256-bit key size. Practically uncrackable.

Front 8

Bluetooth

Back 8

Wireless technology designed to create small wireless networks preconfigured to do specific jobs.

Front 9

CSMA/CA (carrier sense multiple access/collision avoidance

Back 9

Wireless networking scheme used to transmit data while avoiding data collisions.

Front 10

cellular wireless network

Back 10

Networks that enable mobile devices to connect to the Internet.

Front 11

dipole antenna

Back 11

Standard straight wire antennas that provide the most omnidirectional function.

Front 12

EAP (Extensible Authentication Protocol)

Back 12

Authentication wrapper that EAP-compliant applications can use in authentication in wireless networks.

Front 13

gain

Back 13

Ratio of increase of radio frequency output provided by an antenna measure in dB.

Front 14

IEEE 802.11

Back 14

Wireless Ethernet standard AKA Wi-Fi.

Front 15

IrDA (Infrared Data Association)

Back 15

Protocol that enables communication through infrared devices up to speeds of 4 Mbps.

Front 16

infrastructure mode

Back 16

Wireless networking mode that uses one or more WAPs to connect wireless network nodes to a wireless network segment.

Front 17

MAC address filtering

Back 17

Method of limiting wireless network access based on the physical MAC address of the NIC.

Front 18

MIMO (multiple in/multiple out)

Back 18

Feature of 802.11n devices that enables the use of four antennas to increase throughput.

Front 19

MU-MIMO (Multiuser MIMO)

Back 19

New version of MIMO included in 802.11ac that enables a WAP to broadcast to multiple users.

Front 20

PAN (personal area network)

Back 20

Small wireless network created with Bluetooth to link a PC with peripherals.

Front 21

polarization

Back 21

The alignment (vert. or horiz.) of the antennas and the signals on a Wi-Fi client.

Front 22

PoE (Power over Ethernet)

Back 22

Technology that provides power and data through a single network cable.

Front 23

RF (radio frequency)

Back 23

The electromagnetic spectrum range used for radio communication.

Front 24

SSID (service set identifier)

Back 24

Parameter used to define a wireless network. AKA network name.

Front 25

TKIP (Temporal Key Integrity Protocol)

Back 25

Deprecated encryption standard that provided a new encryption for every sent packet.

Front 26

transmit beamforming

Back 26

Multiple-antenna technology that adjusts and optimizes signal when clients are discovered.

Front 27

Wi-Fi

Back 27

IEEE 802.11 wireless Ethernet standard.

Front 28

Wi-Fi analyzer

Back 28

App or device used to scan Wi-Fi signals that can identify dead spots, interference or security threats.

Front 29

WPA (Wi-Fi Protected Access)

Back 29

Wi-Fi security protocol that uses TKIP and EAP improves on WEP’s vulnerabilities.

Front 30

WPA2 (Wi-Fi Protected Access 2)

Back 30

Wi-Fi security protocol AKA IEEE 802.11i. Uses AES and replaces WPA.

Front 31

WPS (Wi-Fi Protected Setup)

Back 31

Feature of WAPs and clients to make secure connections easier to configure.

Front 32

WEP (Wired Equivalent Privacy)

Back 32

Wireless security protocol that uses 40 bit encryption to scramble data packets. Vulnerable to attack.

Front 33

WAP (wireless access point)

Back 33

Device that centrally connects Wi-Fi network nodes.

Front 34

wireless locator

Back 34

Device with signal lights to indicate the presence of Wi-Fi signals.

Front 35

wireless repeater/extender

Back 35

Device that receives and rebroadcasts a Wi-Fi signal to increase coverage.

Front 36

Yagi

Back 36

Multi-element antennas that increase signal gain in a specific direction.