The 802.11n radio in one AP supports three spatial streams. The 802.11n radio in another AP
supports two spatial streams. Which benefit does the first AP radio provide over the second AP
radio?

A.
Each spatial streams operates on a slightly different frequency, increasing reliability and
resilience to interference.

B.
Each spatial streams carries the same stream of data, increasing reliability and bandwidth.

C.
Each spatial streams can be directed toward a different client, allowing the AP to support higher
bandwidth for more clients.

D.
Each spatial stream carries a separate stream of data, increasing bandwidth.

Explanation:

Student Guide Book 1 – Implementing and Troubleshooting HP Wireless Networks – Page 3-14
802.11n can use MIMO for several purposes. One important purpose is spatial
multiplexing—that is, sending multiple data streams in the same channel to multiplythe throughput
of radio. In Module 1, you learned that HP offers MSM APs thatsupport two or even three spatial
streams. Other factors being equal, a radiooperating with two spatial streams transmits at twice
the data rate of a radio using asingle spatial stream. Similarly, three spatial streams triple the data
rate.