CWNA: Certified Wireless Network Administrator v107 — Question 38

What factor is likely to cause the least impact on the application layer throughput of an 802.11n client station in a 2.4 GHz HT BSS?

Answer options

• A. Increasing or decreasing the number of spatial streams in use by the client station and AP
• B. Implementation of several other clients in the same BSS using 802.11 g radios
• C. Implementing Fast BSS Transition (FT) for roaming
• D. RF interface from more than 10 nearby Bluetooth transmitters

Correct answer: A

Explanation

Increasing or decreasing the number of spatial streams directly affects the data rate and efficiency of the client station and AP, thus impacting throughput significantly. In contrast, the implementation of 802.11g clients and Bluetooth interference might cause some degradation, but they are less impactful compared to spatial stream adjustments. Fast BSS Transition is more about enhancing roaming efficiency rather than affecting throughput directly.