WiFi

Question 1

802.11a

Answer 1

5Ghz / 54 Mbps / OFDM

Question 2

5Ghz divided

Answer 2

25 non-overlapping channels / 20 Mhz wide

Question 3

802.11h

Answer 3

5Ghz / 54 Mbps / DFS

Question 4

802.11b

Answer 4

2.4Ghz / 11Mbps / DSSS

Question 5

2.4Ghz divided

Answer 5

14 overlapping channels / 5 Mhz wide

Question 6

802.11g

Answer 6

2.4Ghz / 11Mbps / OFDM

Question 7

OFDM

Answer 7

Orthogonal Frequency Division Multiplexing

Question 8

DFS

Answer 8

Dynamic Frequency Selection (scan for radar signals and prevent an access point from using channels that would cause interference)

Question 9

DSSS

Answer 9

Direct Sequence Spread Spectrum

Question 10

MIMO

Answer 10

Multiple Input Multiple Output

Question 11

802.11n

Answer 11

5Ghz and 2.4Ghz / Max speed 600Mbps / MIMO

Question 12

802.11ac

Answer 12

5Ghz / Max speed 3.5Gbps / MIMO / WiFi 5

Question 13

802.11ax

Answer 13

5Ghz and 2.4Ghz / Max speed 14Gbps / MIMO / WiFi 6

Question 14

WPA

Answer 14

RC4 / TKIP - Temporal Key Integrity Protocol (not secure)

Question 15

WPA2

Answer 15

AES - Advanced Encryption Standard / CCMP - Cipher Block Chaining Message Authentication Code Protocol

Question 16

WPA2 - Auth

Answer 16

wpa2-psk - preshared key part of the 4 way handshake

Question 17

WPA3 - Auth

Answer 17

SAE - Simultaneous Authentication of Equals / WPA3-SAE replaced WPA2-PSK

Question 18

WPA3

Answer 18

GCMP - AES Galois Counter Mode Protocol / replacing AES and CCMP

Question 19

WiFi Enhanced Open

Answer 19

open wifi network with no passphrase but WPA3 encrypts traffic to prevent sniffing