The correct answer is D. IEEE 802.11g.
IEEE 802.11g is a wireless networking standard that was ratified in 2003. It is a superset of the previous IEEE 802.11b standard, and it offers a maximum data rate of 54 Mbps. IEEE 802.11g is backward compatible with IEEE 802.11b, so it can be used with existing IEEE 802.11b devices.
IEEE 802.11g uses the same 2.4 GHz frequency band as IEEE 802.11b, but it uses a different modulation scheme called OFDM (Orthogonal Frequency Division Multiplexing). OFDM is a more efficient modulation scheme than the one used by IEEE 802.11b, which allows IEEE 802.11g to achieve a higher data rate.
IEEE 802.11g is a popular wireless networking standard, and it is widely used in homes, businesses, and schools. It is a good choice for applications that require a high data rate, such as streaming video or music.
Here is a brief explanation of each option:
- A. IEEE 802.6 is a standard for metropolitan area networks (MANs). It is not a wireless networking standard.
- B. IEEE 802.15.4 is a standard for low-power, short-range wireless networks. It is not a high-speed wireless networking standard like IEEE 802.11g.
- C. DSSS IEEE 802.11b is a modulation scheme used by the IEEE 802.11b wireless networking standard. It is not a separate standard.
I hope this helps!