A client complains of low data rates on his computer. When you evaluate the situation, you see that the signal strength is -84 dBm and the noise floor is -96 dBm. The client is an 802.11ac client and connects to an 802.11ac AP. Both the client and AP are 2×2:2 devices.
What is the likely cause of the low data rate issue?
A . Weak signal strength
B . CAT5e cabling run to the AP
C . Too few spatial streams
D . Lack of support for 802.11n
Answer: A