Suppose you access a WLC and search for the name of a specific AP for which users have complained about problems. When you look at the 5 GHz information about the AP, you notice that it is using channel 60 and has 5 dBm transmit power, 65 clients, −90 noise level, 1% channel utilization, and the Air Quality value 10. Which of the following conclusions would be most accurate?

Suppose you access a WLC and search for the name of a specific AP for which users have complained about problems. When you look at the 5 GHz information about the AP, you notice that it is using channel 60 and has 5 dBm transmit power, 65 clients, −90 noise level, 1% channel utilization, and the Air Quality value 10. Which of the following conclusions would be most accurate?

• The AP has too many clients using the 5 GHz channel, which is causing poor performance.
• The noise level is too low, which is causing poor performance.
• The channel utilization is too low, which is keeping clients from using the channel.
• The Air Quality value indicates a severe problem with interference on the channel.

Explanation: The Air Quality level of 10 is very low, considering that 100 is the highest and best value. Therefore, something must be interfering with the AP and client operation on that channel. It might be tempting to see the large number of clients on the AP and assume that there are too many to share the same channel. However, the channel utilization is very low, indicating that the 65 clients are mostly idle or quiet, leaving plenty of air time available for use. Likewise, a noise level of −90 dBm is very low and does not indicate a problem.

Exam with this question: CCNPv8 ENCOR Chapter 21: Do I Know This Already? Quiz Answers