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Exam CWNA-109 All Questions

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Exam CWNA-109 topic 1 question 73 discussion

Actual exam question from CWNP's CWNA-109
Question #: 73
Topic #: 1
[All CWNA-109 Questions]

Which IEEE 802.11 physical layer (PHY) specification includes support for operation in the 2.4 GHz, 5 GHz, and 6 GHz bands?

  • A. VHT (802.11ac)
  • B. HR/DSSS (802.11b)
  • C. HE (802.11ax)
  • D. HT (802.11n)
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Suggested Answer: D 🗳️

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235c862
1 week, 5 days ago
The correct answer is C. HE (802.11ax). Explanation: 802.11ax, also known as Wi-Fi 6 or HE (High Efficiency), is the 802.11 physical layer (PHY) specification that supports operation across the 2.4 GHz, 5 GHz, and 6 GHz bands. This specification is designed to improve wireless network efficiency and performance, especially in environments with a high number of devices. 2.4 GHz and 5 GHz bands are already supported by earlier standards like 802.11n (HT) and 802.11ac (VHT), but 802.11ax (HE) extends support to the 6 GHz band as well, which was recently allocated for Wi-Fi use under Wi-Fi 6E.
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taymee
2 months ago
Answer is C. 802.11ax. 802.11n only suppports 2.4 and 5GHz
upvoted 3 times
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