GSM (Global System for Mobile Communications) is the primary technology used for cellular networks. It is a digital cellular technology that provides voice and data services.

4G (fourth-generation) cellular technology is currently the most widely used. It provides significantly faster data speeds and improved performance compared to previous generations.

Registration is the process of connecting a mobile device to a cellular network. During registration, the device exchanges information with the network, such as its identity and location.

Bluetooth is a wireless technology that is commonly used for short-range communication between devices such as smartphones, tablets, and laptops. It operates in the 2.4 GHz frequency band.

The maximum theoretical speed of a Wi-Fi 6 connection is 9.6 Gbps. However, actual speeds may vary depending on factors such as network congestion and interference.

Cellular is a type of mobile network architecture in which the network is divided into small geographic areas called cells. Each cell is served by a base station that provides coverage to the devices within that cell.

Handoff is the process of transferring a call from one cell tower to another during a mobile call. This is done to ensure that the call remains connected as the device moves from one cell to another.

NFC (Near-Field Communication) is a technology that allows two devices to exchange data over a short distance. It is commonly used for mobile payments and data transfer.

Authentication is the process of verifying the identity of a mobile device on a cellular network. This is done to ensure that only authorized devices can access the network.

Wi-Fi is commonly used for wireless mesh networks. In a mesh network, devices can communicate with each other directly, without the need for a central access point.

Scanning is the process of a mobile device searching for available cellular networks. This is done periodically to ensure that the device is connected to the best available network.

Bluetooth is commonly used for ad hoc networks. In an ad hoc network, devices can communicate with each other directly, without the need for a central access point.

Association is the process of a mobile device connecting to a Wi-Fi network. This involves exchanging information with the access point and obtaining an IP address.

Zigbee is commonly used for wireless sensor networks. Zigbee is a low-power wireless technology that is designed for long-range communication with low data rates.