Which of the following is not a short-range wireless network?a.Bluetoothb.VPNc.Hotspotd.Wifi

The option that is not a short-range wireless network is b. VPN.

Here's why:

a. Bluetooth - This is a short-range wireless technology. It's used for exchanging data between fixed and mobile devices over short distances.

b. VPN (Virtual Private Network) - This is not a wireless network. Instead, it's a service that protects your internet connection and privacy online. It creates an encrypted tunnel for your data, protects your online identity by hiding your IP address, and allows you to use public Wi-Fi hotspots safely.

c. Hotspot - This is a physical location where people can access the Internet, typically using Wi-Fi, via a wireless local area network (WLAN) with a router connected to an internet service provider.

d. Wifi - This is a wireless networking protocol that devices use to communicate without direct cable connections. It's a type of short-range wireless network.

The answer is b. VPN. A VPN, or Virtual Private Network, is not a type of wireless network. It is a service that encrypts your internet data and protects your online identity. It does not have a range because it is not a physical network, but a virtual one.