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Difficulty: MediumWireless Networking Standards and Technologies

A network technician is deploying a single new wireless access point to serve a multi-use area in a corporate office. The deployment requirements mandate using a single IEEE standard that natively supports simultaneous dual-band operation across both the 2.4 GHz and 5 GHz frequency bands to accommodate both legacy IoT sensors and modern laptops. Which of the following wireless standards should the technician select?

  1. 802.11axAnswer
  2. B
    802.11ac
  3. C
    802.11g
  4. D
    802.11a

Answer

802.11ax
The 802.11ax (Wi-Fi 6) standard natively operates across both 2.4 GHz and 5 GHz frequency bands, making it capable of servicing legacy 2.4 GHz clients and high-performance 5 GHz clients under a unified standard.

Step-by-Step Solution

1
Analyze the technical requirements of the scenario.
The deployment requires a single wireless standard that natively operates across both the 2.4 GHz and 5 GHz bands.
Different 802.11 standards are designated for specific frequency spectrum allocations.
2
Evaluate the supported operating frequencies of each candidate standard.
802.11a (5 GHz only), 802.11g (2.4 GHz only), 802.11ac (5 GHz only natively), and 802.11ax (natively dual-band on 2.4 GHz and 5 GHz).
802.11ac was designed strictly for 5 GHz spectrum, while 802.11ax reintroduced 2.4 GHz spectrum support alongside 5 GHz.
3
Select the standard that fulfills all specified constraints.
802.11ax is the correct choice.
It is the only option listed that natively operates on both 2.4 GHz and 5 GHz bands under one standard.

Key Concept

Wi-Fi Standards and Frequency Band Compatibility
Estimated Time:1m 0s
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Topics

Wireless Networking Standards and Technologies

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