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Definition: A hotspot, also commonly called a WiFi hotspot, is a small area in which one can get connection to the Internet or a LAN without wires, through WiFi.WiFi (also written Wi-Fi) is a wireless technology that allows LAN s to be set up without wires between devices.efinition: A hotspot, also commonly called a WiFi hotspot, is a small area in which one can get connection to the Internet or a LAN without wires, through WiFi.
If tethering is done over WLAN, the feature may be branded as a mobile hotspot, which allows the smartphone to serve as a portable router. Mobile hotspots may be protected by a PIN or password. The Internet-connected mobile device can act as a portable wireless access point and router for devices connected to it.