A frequency band commonly used for Wi-Fi networks?

A frequency band commonly used for Wi-Fi networks?

• A. 2.4GHz
• B. 5GHz
• C. IP address
• D. MAC address

Answer: (A)

Wi‑Fi networks commonly operate in unlicensed radio bands, and the 2.4 GHz band is widely used because it’s part of the global ISM spectrum that devices can access without licenses. Its lower frequency means signals travel farther and penetrate walls more effectively, which makes it the default choice for broad coverage and compatibility across many devices and generations of routers. The 5 GHz band, while capable of higher data rates and experiencing less interference, has a shorter range and is not as universally supported on older gear, so it isn’t as universally common. The other options describe identifiers (IP and MAC addresses) rather than radio frequencies, so they aren’t frequency bands at all.

Wi‑Fi networks commonly operate in unlicensed radio bands, and the 2.4 GHz band is widely used because it’s part of the global ISM spectrum that devices can access without licenses. Its lower frequency means signals travel farther and penetrate walls more effectively, which makes it the default choice for broad coverage and compatibility across many devices and generations of routers. The 5 GHz band, while capable of higher data rates and experiencing less interference, has a shorter range and is not as universally supported on older gear, so it isn’t as universally common. The other options describe identifiers (IP and MAC addresses) rather than radio frequencies, so they aren’t frequency bands at all.