220-801 · Question #389
Which of the following standards would be used on a wireless router to support speeds up to 150 Mbps?
The correct answer is D. 802.11n. The 802.11n Wi-Fi standard supports speeds up to 150 Mbps per stream (and up to 600 Mbps with MIMO), far exceeding the older 802.11a/b/g standards.
Question
Which of the following standards would be used on a wireless router to support speeds up to 150 Mbps?
Options
- A802.11a
- B802.11b
- C802.11g
- D802.11n
How the community answered
(58 responses)- A3% (2)
- C2% (1)
- D95% (55)
Why each option
The 802.11n Wi-Fi standard supports speeds up to 150 Mbps per stream (and up to 600 Mbps with MIMO), far exceeding the older 802.11a/b/g standards.
802.11a operates on the 5 GHz band with a maximum speed of 54 Mbps, well below 150 Mbps.
802.11b operates on the 2.4 GHz band with a maximum speed of only 11 Mbps.
802.11g operates on the 2.4 GHz band with a maximum speed of 54 Mbps, the same ceiling as 802.11a.
IEEE 802.11n introduced MIMO (Multiple Input Multiple Output) antenna technology and operates on both 2.4 GHz and 5 GHz bands, achieving speeds up to 150 Mbps with a single spatial stream and up to 600 Mbps with four streams. This was a significant leap from prior standards and is the only option capable of reaching 150 Mbps. It also introduced channel bonding (40 MHz channels) which contributed to the speed increase.
Concept tested: 802.11n wireless standard speed capabilities
Source: https://www.ieee802.org/11/
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