How does the Audi A5 all-wheel drive system work?

I've heard that the Audi A5 has an advanced all-wheel drive system, but I'm not sure how it differs from other cars. Can someone explain in detail how it works?

The Audi A5 uses a Quattro all-wheel drive system that constantly monitors the traction of all four wheels and distributes power accordingly. This results in better handling and traction in all types of driving conditions.

Compared to other all-wheel drive systems, the Audi A5's Quattro system is more proactive and can anticipate loss of traction before it happens. This makes the car more stable and helps prevent understeering or oversteering.