Question 3 - HP HPE6-A85 Real Exam Questions [Jan 2026 Update]

Q: 3

What are the main characteristics of the 6 GHz band?

Options

Correct Answer:

Explanation

The main characteristic of the 6 GHz band that is true among the given options is that in North

America, the 6 GHz band offers more 80 MHz channels than there are 40 MHz channels in the 5 GHz

band. This characteristic provides more spectrum availability, less interference, and higher

throughput for wireless devices that support Wi-Fi 6E Wi-Fi Enhanced (Wi-Fi 6E) is an extension of

Wi-Fi 6 (802.11ax) standard that operates in the newly available unlicensed frequency spectrum

around 6 GHz in addition to existing bands below it. Some facts about this characteristic are:

In North America, there are up to seven non-overlapping channels available in each of three channel

widths (20 MHz, 40 MHz, and 80 MHz) in the entire unlicensed portion of the new spectrum (5925–

7125 MHz). This means there are up to 21 non-overlapping channels available for Wi-Fi devices in

total.

In comparison, in North America, there are only nine non-overlapping channels available in each of

two channel widths (20 MHz and 40 MHz) in the entire unlicensed portion of the existing spectrum

below it (2400–2483 MHz and 5150–5825 MHz). This means there are only up to nine non-

overlapping channels available for Wi-Fi devices in total.

Therefore, in North America, there are more than twice as many non-overlapping channels available

in each channel width in the new spectrum than in the existing spectrum below it.

Specifically, there are more than twice as many non-overlapping channels available at 80 MHz width

(seven) than at 40 MHz width (three) in the existing spectrum below it.

The other options are not true because:

Less RF signal is absorbed by objects in a 6 GHz WLAN: This option is false because higher frequency

signals tend to be more absorbed by objects than lower frequency signals due to higher attenuation

Attenuation is a general term that refers to any reduction in signal strength during transmission over

distance or through an object or medium . Therefore, RF signals in a 6 GHz WLAN would be more

absorbed by objects than RF signals in a lower frequency WLAN.

The 6 GHz band is fully backward compatible with existing bands: This option is false because Wi-Fi

devices need to support Wi-Fi 6E standard to operate in the new spectrum around 6 GHz . Existing

Wi-Fi devices that do not support Wi-Fi 6E standard cannot use this spectrum and can only operate in

existing bands below it.

Low Power Devices are allowed for indoor and outdoor usage: This option is false because Low

Power Indoor Devices (LPI) are only allowed for indoor usage under certain power limits and

registration requirements . Outdoor usage of LPI devices is prohibited by regulatory authorities such

as FCC Federal Communications Commission (FCC) is an independent agency of United States

government that regulates communications by radio, television, wire, satellite, and cable across

United States . However, outdoor usage of Very Low Power Devices (VLP) may be allowed under

certain power limits and without registration requirements.

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