Wireless Networks

Question 1

The terms DSSS, FHSS and OFDM are referring to

Answer 1

Something in the wireless networking world

Question 2

What is the standard channel size for 2.4 GHz and 5GHz networks?

Answer 2

20 MHz

Also, 5 GHz can be larger (2, 4, 8 times, increasing risk for interference)

Question 3

Wireless Standard, what is band measured with?

Answer 3

GHz, 2.4 or 5

Question 4

Wireless Standard, what is bandwidth measured with?

Answer 4

bits per second, so Mbps and Gbps

Question 5

What standards do not support band 5 GHz

Answer 5

802.11 B and G

Question 6

What standards do not support band 2.4 GHz

Answer 6

802.11 A and AC

Question 7

What standads support both bands 2.4 and 5 GHz

Answer 7

802.11 N and AX

Question 8

Band and Bandwidth of Wireless Standard 802.11a

Answer 8

Band: 5 GHz
Bandwidth: 54 Mbps

Question 9

Band and Bandwidth of Wireless Standard 802.11b

Answer 9

Band: 2.4 GHz
Bandwidth: 11 Mbps

Question 10

Band and Bandwidth of Wireless Standard 802.11g

Answer 10

Band: 2.4 GHz
Bandwidth: 54 Mbps

Question 11

Band and Bandwidth of Wireless Standard 802.11n (Wi-Fi 4)

Answer 11

Band: 2.4 and 5 GHz
Bandwidth: 150 Mbps / 650 Mbps

Question 12

Band and Bandwidth of Wireless Standard 802.11ac (Wi-Fi 5)

Answer 12

Band: 5 GHz
Bandwidth: 6.9 Gbps

Question 13

Band and Bandwidth of Wireless Standard 802.11ax (Wi-Fi 6)

Answer 13

Band: 2.4 and 5 GHz
Bandwidth: 9.6 Gbps

Question 14

Every time you see CCMP think about

Answer 14

WPA2 security

Question 15

Wireless Network, when you see the word “Open”, look for:

Answer 15

No security or protection

Question 16

Wireless Network, when you see the word “WEP”, look for:

Answer 16

IV

Question 17

Wireless Network, when you see the word “WPA”, look for:

Answer 17

TKIP and RC4

Question 18

Wireless Network, when you see the word “WPA2”, look for:

Answer 18

CCMP and AES

Question 19

For the exam, MAC Address Filtering and Disabling SSID are considered

Answer 19

Good security measures