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A network adapter is the unit of a computer's hardware that a computing device employs for interfacing over a network with another computer. It could be wired or wireless.
Wireless Hotspot or WiFi hotspot is prominently known as a wireless access point (WAP) or WLAN. It is set up in a public place to provide internet access to all wireless enabled devices ranging from laptops to mobiles to music devices. Airports, Coffee shops, Malls, etc. offer free WiFi Hotspots
How to measure WiFi signal strength? There are several tools and software available such as InSSIDer, NetSpot, Wireshark, WiFi Analyzer, etc. You can even count the number of WiFi bar on your device. WiFi signal strength depends on multiple factors such as distance from the access point, obstructions, etc.
You may turn off Wifi for reasons like saving electricity, avoiding any security glitches & boosting internet speed for wired devices. The simplest method is by killing the power. Some Wifi routers come with on/off switch. You can turn off WiFi on your smart gadgets, like mobile by going into settings.
If proper wifi security settings are not in place then it can be unauthorizedly accessed by third parties & sometimes even lead to DoS attacks. Wireless network security covers the methods by which you can secure your Wifi network. Change the default SSID name & IP address. Put wifi router in the middle
Some of the typical router settings include internet username & password, MTU, wireless protocols, channel number, SSID, security options, etc. let's see how to access router settings. You should know the IP address of your router for which you have to type ipconfig/all on the command prompt on your PC