COMPUTER NETWORKING

Detailed explanation-1: -802.11n supports multi-channel utilization and operates at both 2.4 GHz and 5 GHz bands. The maximum data rate for this wireless networking standard is 600 Mbps and it provides backward compatibility with its predecessors.

Detailed explanation-2: -802.11b. An extension to the 802.11 standard developed by the IEEE for wireless network technology. 802.11b applies to wireless local area networks and supports a maximum connect rate of 11 Mbps with fallback to 5.5, 2, and 1 Mbps in the 2.4GHz ISM band. This standard was ratified in 1999.

Detailed explanation-3: -IEEE 802.11g It operates in the 2.4 GHz band (as in 802.11b) and provides a average throughput of 22 Mbps. It uses OFDM technique (as in 802.11a). It is fully backward compatible with 802.11b. 802.11g devices also faces interference from other devices operating in 2.4 GHz band.

Detailed explanation-4: -802.11n (Wi-Fi 4) The first standard to specify MIMO, 802.11n was approved in October 2009 and allows for usage in two frequencies-2.4GHz and 5GHz, with speeds up to 600Mbps.