Wireless Networking Standards & Frequencies Quiz

1. 802.11ax (Wi-Fi 6) introduces OFDMA. What does OFDMA enable?

Single user access only

Multi-user simultaneous transmission

Analog signal processing

Wired backhaul connections

2. Which frequency band offers the best balance of range and bandwidth for outdoor 5G coverage?

MmWave (28+ GHz)

Sub-6 GHz (600 MHz to 3.7 GHz)

2.4 GHz

60 GHz

3. What does QoS (Quality of Service) refer to in wireless networks?

The physical antenna quality

The ability to prioritize and manage network traffic

The encryption strength

The number of devices supported

4. Band n78 (3.5 GHz) is commonly used for which technology?

Wi-Fi 6

5G NR

LTE only

Bluetooth

5. What is the primary purpose of beamforming in wireless networks?

To broadcast signals in all directions equally

To focus radio signals toward specific devices

To reduce antenna size

To eliminate encryption

6. Which modulation technique is used in modern 5G networks to achieve higher data rates?

QPSK only

256-QAM and higher

FSK

AM

7. In cellular networks, what does the term 'spectrum band' refer to?

A range of frequencies allocated for wireless communication

The physical antenna design

The encryption method used

The number of base stations

8. What is the maximum theoretical throughput of 802.11be (Wi-Fi 7)?

1.3 Gbps

9.6 Gbps

20 Gbps

100 Gbps

9. Which wireless standard is primarily designed for IoT and low-power devices?

802.11ax

802.15.4 (Zigbee)

802.11ac

5G mmWave

10. What is the typical channel bandwidth for 802.11n in the 5 GHz band?

20 MHz

40 MHz

80 MHz

160 MHz

11. Which IEEE 802.11 standard operates primarily in the 5 GHz band and offers maximum data rates of 54 Mbps?

802.11a

802.11b

802.11g

802.11n

12. What is the primary advantage of MIMO (Multiple-Input Multiple-Output) in wireless networks?

Reduces power consumption

Increases data throughput and coverage

Eliminates interference completely

Decreases latency to zero

13. In the United States, which agency regulates wireless spectrum allocation and frequency assignments?

FCC

EPA

NIST

IANA

14. Which 5G frequency band is considered mmWave (millimeter wave)?

N1 (2.1 GHz)

N78 (3.5 GHz)

N258 (26-28 GHz)

N71 (617-652 MHz)

15. What is the primary frequency range for 5G NR (New Radio) sub-6 GHz bands?

600 MHz to 3.7 GHz

2.4 GHz to 5 GHz

28 GHz and above

1 GHz to 2 GHz

16. LTE operates in which frequency bands and what is its typical peak download speed?

Sub-1 GHz, 3G speeds

600 MHz to 6 GHz, up to 300 Mbps

2.4 GHz to 5 GHz, 1 Gbps

Microwave only, 50 Mbps

17. What frequency band is newly allocated for Wi-Fi 6E?

2.4 GHz only

5 GHz only

6 GHz

7 GHz

18. Which standard introduced Wi-Fi 6 (802.11ax) and supports both 2.4 GHz and 5 GHz bands?

802.11ac

802.11ax

802.11be

802.11ad

19. 802.11ac is designed for which frequency band and what is its approximate maximum throughput?

2.4 GHz, 600 Mbps

5 GHz, 1.3 Gbps

6 GHz, 2.4 Gbps

60 GHz, 7 Gbps

20. What is the primary frequency band used by 802.11b and 802.11g standards?