CWNP
CWNA-107 · Question #67
CWNA-107 Question #67: Real Exam Question with Answer & Explanation
The correct answer is C. 802.11ac devices support the features of the VHT PHY only in the 5 GHz frequency band.. See the full explanation below for the reasoning.
Question
As a consultant, you've been hired by XYZ Company to provide recommendations about client device selection, operation, and interoperability. What information should be considered to help them choose the right WLAN client devices?
Options
- A802.11n OFDM is more susceptible to high-power, narrowband interference than 802.11a
- BIn order to earn Wi-Fi Alliance certification, 802.11n clients stations are required to support both
- C802.11ac devices support the features of the VHT PHY only in the 5 GHz frequency band.
- D802.11ac is not backwardly compatible with 802.11n or 802.11a.
- EWhen HR/DSSS devices are present, VHT MCS rates are disabled for the entire BSS.
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