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Question 99 - 220-1101 discussion

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While implementing a non-carrier-grade wireless backhaul, a technician notices the current channel selection is externally polluted with various RF signals. Upon performing a spectral analysis, the technician discovers a channel containing almost no RF pollution. Unfortunately, the technician is unable to select that channel. Which of the following is the MOST likely reason for this issue?

A.
The channel is reserved for licensed band use.
Answers
A.
The channel is reserved for licensed band use.
B.
The channel selection is defective, contact the manufacturer.
Answers
B.
The channel selection is defective, contact the manufacturer.
C.
The channel must be unblocked by the vendor.
Answers
C.
The channel must be unblocked by the vendor.
D.
The device requires a firmware update to unlock the channel.
Answers
D.
The device requires a firmware update to unlock the channel.
Suggested answer: A

Explanation:

The 2. band is subdivided into up to 14 channels, spaced at 5 MHz intervals from 2412 MHz up to 2484 MHz. Wi-Fi requires bandwidth of approximately 20 MHz, not 5 MHz. Consequently, a site designer needs to choose the channels that do not overlap. On a WLAN where only the first 11 channels are available, channels 1, 6, and 11 can be selected as non-overlapping. Note: In the Americas, regulations permit the use of channels 1-11 only, while in Europe, channels 1-13 are permitted. In Japan, all 14 channels are permitted

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asked 02/10/2024
Friedrich Spies
29 questions
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