Question

A company is experiencing very slow network speeds of 54Mbps. A technician has been hired to perform an assessment on the existing wireless network. The technician has recommended an 802.11n network infrastructure. Which of the following allows 802.11n to reach higher speeds?

1) MU-MIMO
2) LWAPP
3) PoE
4) D. MIMO

Answer 1

MIMO is the key feature of 802.11n that allows it to achieve higher speeds compared to older wireless standards. LWAPP and PoE are unrelated to speed enhancements.

Step-by-step explanation:

The 802.11n network infrastructure can achieve higher speeds compared to older standards like 802.11g, which typically caps at 54 Mbps. One of the key technological enhancements in 802.11n that allows it to reach higher speeds is MIMO (Multiple Input Multiple Output). MIMO is a method for multiplying the capacity of a radio link using multiple transmission and receiving antennas to exploit multipath propagation. MU-MIMO, which stands for Multi-User MIMO, further extends this by allowing multiple users to access the multiple spatial streams created by MIMO, although MU-MIMO itself is not a key feature of the 802.11n standard but rather a part of the newer 802.11ac standard. LWAPP (Lightweight Access Point Protocol) and PoE (Power over Ethernet) do not contribute to the higher speeds of 802.11n; rather, they serve different functions in networking.