Basic Wifi Concepts

Front

How do radio waves, which Wi-Fi uses, differ from visible light?

Back

Radio waves are long and invisible, while visible light is short and visible.

Front

What does SSID represent when you see a list of available Wi-Fi networks on your phone?

Back

The name of the Wi-Fi network.

Front

What is the main purpose of a router assigning an IP address to your device when it connects to Wi-Fi?

Back

To give your device a unique identifier within the network for data routing.

Front

Describe the path data takes when your phone requests a video from YouTube and receives it back.

Back

Phone sends request to router, router sends to ISP, ISP sends to YouTube servers, YouTube servers send to ISP, ISP sends to router, router sends to phone.

Front

Which device is responsible for forwarding your phone's internet requests to your Internet Service Provider (ISP)?

Back

The Wi-Fi router.

Front

Why is it important for Wi-Fi signals to use different frequencies than visible light?

Back

Because radio waves can travel through walls, while visible light cannot.