What wireless standard can achieve 100 Mbps actual wireless throughput?

The correct answer is that 802.11 a/n can achieve actual wireless throughput of 100 Mbps. This wireless standard incorporates multiple enhancements that allow for greater data transmission rates compared to earlier standards.

The 802.11a standard operates in the 5 GHz frequency band and can achieve faster speeds due to the utilization of a wider channel and higher modulation schemes compared to 802.11b and 802.11g, both of which operate at 2.4 GHz and are limited by lower data rates. The 'n' in 802.11n allows for multiple-input multiple-output (MIMO) technology, which can effectively significantly increase throughput by using multiple antennas for both transmission and reception. This technology enhances the efficiency and overall performance of the wireless connection.

While 802.11b/g, 802.11a/b/g, and 802.11a/b/g/n all incorporate certain aspects of the older standards, they do not reach the same level of performance as the specific combination of 802.11a and 802.11n, particularly when it comes to achieving a throughput of 100 Mbps. Hence, understanding the capabilities of each standard is crucial for evaluating their real-world performance in a networking context.