Wireless Technology 2.3

Question 1

Channels

Answer 1

Groups of frequencies, numbered by IEEE. Bandwidth refers to size of frequency.

Question 2

Band steering

Answer 2

Specify which frequency is used and how. Prioritize signal strength or throughput.

Question 3

802.11h

Answer 3

Interoperability to wireless, allowing cross compatibility between different standards

Question 4

DFS

Answer 4

Avoids frequency conflict by changing access points and devices to an unused frequency

Question 5

TPC

Answer 5

Avoids conflict with satellite services; access point determines power output of client

Question 6

IBSS

Answer 6

Ad hoc, connection between devices without AP. Phone to PC

Question 7

SSID

Answer 7

Wireless network name

Question 8

BSSID

Answer 8

Mac address of AP

Question 9

ESSID

Answer 9

SSID shared across multiple APs in the network. Bridge mode.

Question 10

Captive portal

Answer 10

Authentication to network, usually guest or requires login

Question 11

Omnidirectional antenna

Answer 11

All direction antenna, most common

Question 12

Directional antenna

Answer 12

Antenna which focuses signal in a direction

Question 13

Autonomous AP

Answer 13

AP which can handle most wireless tasks, without giving task to switch

Question 14

Lightweight AP

Answer 14

AP which only does wireless. Tasks given to switch to handle.

Question 15

Wireless LAN controller

Answer 15

Controls WAP from a single console or device

Question 16

Mesh Network

Answer 16

Multiple AP, clients across distances can communicate with each other

Question 17

Point to point

Answer 17

Connect two APs together to extend a network over distance, like a wireless cable between buildings

Question 18

Infrastructure mode

Answer 18

Clients communicate to a single AP which mediates connections

Question 19

WPA2

Answer 19

Uses AES encryption

Question 20

WPA3

Answer 20

Uses Galois/Counter Mode Protocol and AES