CWS CWS 802.11 Standards and Protocols 2

Question 1

Which 802.11 amendment introduced the concept of mesh networking (MBSS)?

Accepted Answer

802.11s

Answer

802.11r

Answer

802.11k

Answer

802.11v

Question 2

What is the maximum channel width supported by 802.11ac Wave 2?

Accepted Answer

160 MHz

Answer

40 MHz

Answer

80 MHz

Answer

320 MHz

Question 3

Which modulation scheme achieves the highest data rates in 802.11ax (Wi-Fi 6)?

Accepted Answer

1024-QAM

Answer

64-QAM

Answer

256-QAM

Answer

4096-QAM

Question 4

The 802.11e amendment primarily addressed which aspect of wireless networking?

Accepted Answer

Quality of Service (QoS)

Answer

Security enhancements

Answer

Frequency band expansion

Answer

Power save mechanisms

Question 5

What is the guard interval introduced by 802.11ax to improve efficiency in dense environments?

Accepted Answer

3200 ns

Answer

400 ns

Answer

800 ns

Answer

1600 ns

Question 6

802.11p is a variant of 802.11 designed specifically for use in which environment?

Accepted Answer

Vehicular networks (V2X)

Answer

Underwater communications

Answer

Industrial control systems

Answer

Satellite uplinks

Question 7

Which 802.11 standard first introduced MIMO (Multiple Input, Multiple Output) antenna technology?

Accepted Answer

802.11n

Answer

802.11a

Answer

802.11g

Answer

802.11ac