You are designing an autonomous wireless network for an office building that is located near a local airport.
The customer requires the use of 802.11a/n clients only, and the APs must never change their channel after they are configured.
Which two UNII bands and channels should you restrict the APs to use on the 5 GHz radios? (Choose two.)
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A. B. C. D. E. F.AF.
When designing an autonomous wireless network, it is important to consider the frequency bands and channels that will be used for the network. In this scenario, the customer requires the use of 802.11a/n clients only, and the APs must never change their channel after they are configured. Therefore, it is important to select the appropriate UNII bands and channels to ensure that the network operates efficiently and meets the customer's requirements.
UNII (Unlicensed National Information Infrastructure) is a set of radio frequency bands that are available for unlicensed use by wireless devices. The 5 GHz frequency band is divided into three UNII bands: UNII-1, UNII-2, and UNII-3. Each UNII band has a specific set of channels that can be used by wireless devices.
To restrict the APs to use on the 5 GHz radios, we need to select two UNII bands and channels that will ensure that the network operates efficiently and meets the customer's requirements. The correct answer is A. UNII-1 and UNII-3 and D. 36-48 and 100-140.
Explanation: A. UNII-1 and UNII-3: UNII-1 band operates in the 5.15-5.25 GHz frequency range, and UNII-3 band operates in the 5.725-5.825 GHz frequency range. Both of these bands have a low power output limit, which means that they are less likely to interfere with other wireless devices. Therefore, selecting these bands can help reduce interference and improve network performance.
D. 36-48 and 100-140: These channels are part of UNII-1 and UNII-3 bands respectively. Selecting these channels ensures that the APs never change their channel after they are configured because they are non-overlapping channels. Non-overlapping channels are channels that do not overlap with each other and can be used simultaneously without interference. By selecting these channels, we can ensure that the network operates efficiently and meets the customer's requirements.
Therefore, the correct answers are A. UNII-1 and UNII-3 and D. 36-48 and 100-140.