802.11 Standards (obj 1.5)

Question 1

What does the IEEE 802.11 Standard define?

Answer 1

Technologies for wireless local area network (WLAN) communication

Evolved over time to meet demands for faster data transfer speeds and more reliable networks.

Question 2

What is the frequency band for Wireless a (802.11a)?

Answer 2

5 GHz

Question 3

What is the maximum speed of Wireless a (802.11a)?

Answer 3

Up to 54 Mbps

Question 4

What is the typical range of Wireless a (802.11a)?

Answer 4

Around 35 meters

Question 5

When was Wireless b (802.11b) introduced and what was its initial speed?

Answer 5

Introduced in the late 1990s, initial speed was 11 Mbps

Question 6

What frequency band does Wireless b (802.11b) operate on?

Answer 6

2.4 GHz

Question 7

What is the range of Wireless b (802.11b)?

Answer 7

About 140 meters

Question 8

What is the maximum speed of Wireless g (802.11g)?

Answer 8

Up to 54 Mbps

Question 9

What frequency band does Wireless g (802.11g) utilize?

Answer 9

2.4 GHz

Question 10

What is the typical range of Wireless g (802.11g)?

Answer 10

Around 140 meters

Question 11

What are the frequency bands used by Wireless n (802.11n/Wi-Fi 4)?

Answer 11

5 GHz and 2.4 GHz

Question 12

What is the maximum speed and range of Wireless n on the 5 GHz band?

Answer 12

Up to 600 Mbps and around 35 meters

Question 13

What is the maximum speed and range of Wireless n on the 2.4 GHz band?

Answer 13

Up to 300 Mbps and up to 70 meters

Question 14

What technology does Wireless n (802.11n) use to enhance data transfer speeds?

Answer 14

Multiple-Input Multiple-Output (MIMO)

Question 15

What is the maximum speed of Wireless ac (802.11ac/Wi-Fi 5)?

Answer 15

Up to 6.9 Gbps or more

Question 16

What technology does Wireless ac (802.11ac) utilize for multiple user access?

Answer 16

Multiple-User Multiple-Input Multiple-Output (MU-MIMO)

Question 17

What is the frequency band for Wireless ax (802.11ax/Wi-Fi 6)?

Answer 17

2.4 GHz, 5 GHz, and 6 GHz (Wi-Fi 6e)

Question 18

What is the maximum speed of Wireless ax (802.11ax/Wi-Fi 6)?

Answer 18

Up to 9.6 Gbps

Question 19

What feature allows Wireless ax to enhance simultaneous user access?

Answer 19

MU-MIMO technology

Question 20

Is Wireless ax fully backwards compatible with previous standards?

Answer 20

Yes

Question 21

Which standards support the 2.4 GHz frequency?

Answer 21

• b
• g
• n
• ax

Question 22

Which standards support the 5 GHz frequency?

Answer 22

• a
• n
• ac
• ax

Question 23

Which standard supports the 6 GHz frequency?

Answer 23

ax

Question 24

True or False: Higher speeds in wireless standards often come with reduced coverage distances.

Answer 24

True

Question 25

What should be checked in troubleshooting scenarios regarding wireless standards?

Answer 25

Compatibility and frequency bands

Question 26

What caution should be taken regarding marketing materials for wireless standards?

Answer 26

Caution against relying on them for exam answers

Question 27

What should be adhered to when studying wireless standards?

Answer 27

Official standards