What is the maximum speed of data transmission in typical IEEE 802.11 networks?

The maximum speed of data transmission in typical IEEE 802.11 networks is indeed 54 MBit/s. This speed specifically refers to the IEEE 802.11g standard, which was one of the most widely adopted Wi-Fi standards before newer standards like 802.11n and 802.11ac were introduced.

It's important to note that the reference to 54 MBit/s is indicative of the theoretical maximum data rate achievable under optimal conditions in a typical wireless network using this standard. In practical scenarios, actual speeds may be lower due to various factors such as interference, distance from the access point, and network congestion.

The other choices reflect values that are either too low or implausibly high for the IEEE 802.11 standards. For example, 54 KBit/s is significantly below the capabilities of even the earliest iterations of Wi-Fi technology, and 54 GBit/s and 54 TBit/s exceed the current state of wireless network standards by a considerable margin, reflecting speeds that are not achievable with existing technology. This context highlights why 54 MBit/s is the correct answer, as it accurately represents the maximum speed for the mentioned standard.