COMPUTER NETWORKING

Detailed explanation-1: -2. WLANs use high power levels and generally require a license for spectrum use. Explanation: WLANs use low power and generally do not require a license for spectrum. They provide ad hoc high data transmission rate connections deployed by individuals.

Detailed explanation-2: -Wireless LANs (WLANs) are wireless computer networks that use high-frequency radio waves instead of cables for connecting the devices within a limited area forming LAN (Local Area Network).

Detailed explanation-3: -LANs are simple networks that are used to connect computers and devices within a small area like an office, a building, or a campus. Traditional LANs use Ethernet cables to connect the devices, whereas WLANs are completely wireless. WLANs can support hundreds and thousands of devices.

Detailed explanation-4: -One of the biggest disadvantages of WLANs is the security risks they pose. Wireless networks are vulnerable to hacking, which can result in the loss of sensitive information. Additionally, WLANs are susceptible to interference from other wireless devices, which can result in a loss of connectivity or slow performance.