802.11 Flashcards
(25 cards)
802.11a
5 GHz only
5 GHz Max data rate
54 Mbps
5 GHz band is divided into how many channels and how many MHz wide
23 Non-overlapping channels, 20 MHz wide
Dynamic Frequency Selection (DFS) does what
Prevents Wi-Fi signals from interfering with nearby radar and satellite installations.
What is the Dynamic Frequency Selection (DFS) range
52 MHz - 140 MHz
802.11b
2.4 GHz Only
2.4 GHz band is divided into how many channels and how many MHz wide
14 channels, spaced at 5 MHz intervals
2.4 GHz range is what
2,412 MHz - 2,484
Do 2.4 GHz bands overlap?
Yes, frequently
802.11g
2.4 GHz with a 54 Mbps rate
802.11n
Both 2.4 GHz and 5 GHz
What is a “dual band”
An access point or adapter that can support simultaneous 2.4 GHz and 5 GHz operation
The 802.11n standard allows two adjacent 20 MHz channels to be combined into a single 40 MHz channel- True or False
True
What is Channel Bonding
Two adjacent 20 MHz channels to be combined into a single 40 MHz channel
What is the Mbps rate for 802.11n
72 Mbps per stream or 150 Mbps per stream for a 40 MHz bonded channel
802.11n can also be called what
Wi-Fi 4
802.11ac can also be called what
Wi-Fi 5
802.11ax can also be called what
Wi-Fi 6
Wi-Fi 5 can work in what GHz band
5GHz
Mbps nominal rate for Wi-Fi 5
433 Mbps
How large is Wi-Fi 5 channel
80 MHz
How large is Wi-Fi 6channel
80 MHz
Mbps rate for Wi-Fi 6
600Mbps
What GHz does Wi-Fi 6 work in
2.4 GHz and 5 GHz bands
