Wireless networking:

Wireless networking is a method of connecting devices to a network without the need for physical cables. The most common wireless networking standard is the 802.11 family of standards, also known as Wi-Fi.

The 802.11 standards define how wireless devices communicate with each other and with access points, which act as the bridge between wireless devices and a wired network. The most common standards are 802.11b, 802.11g, and 802.11n, with the latter being the most recent and fastest.

Wireless networks are vulnerable to security threats, such as eavesdropping and unauthorized access. To address these concerns, various security protocols have been developed, such as WPA2. WPA2 stands for Wi-Fi Protected Access 2 and is a security protocol designed to provide secure wireless communication. It uses encryption to protect the data being transmitted over the network and requires a password or network key to connect to the network.

Other wireless security protocols include WEP, which is an older and less secure protocol, and WPA, which is an older version of WPA2. There are also additional security measures that can be taken, such as limiting access to the network by MAC address and disabling the broadcasting of the network's SSID.

Overall, wireless networking has become an essential part of our daily lives, and understanding the different standards and security protocols can help ensure a safe and secure wireless experience.