What is the data rate of 802.11b?

The data rate of 802.11b is indeed 11 Mbps. This standard, part of the Wi-Fi family, was introduced in 1999 as one of the first widely adopted wireless networking standards and operates in the 2.4 GHz frequency band.

The significance of the 11 Mbps rate lies in its historical context; it was a significant improvement over its predecessor, 802.11, which offered data rates of only 1 and 2 Mbps. 802.11b used a technology called Complementary Code Keying (CCK) for modulation, which allowed it to achieve this higher speed while maintaining backward compatibility with earlier standards.

In contrast, the other options reflect data rates from different Wi-Fi standards that either exceeded 802.11b’s capabilities or did not apply. For example, 54 Mbps corresponds to the 802.11g standard, which was developed later and provided higher throughput. 22 Mbps does not correspond to any standard. Lastly, 100 Mbps is not a recognized data rate for any of the common Wi-Fi standards, as the performance of Wi-Fi has increased gradually over time through advancements in technology, leading to standards such as 802.11n and beyond.