What is a DDoS attack?

This is when 100,000 people think of you at the same time and you die from hiccups.

Yyy: When in the route all passengers with 500 rubles.

zzz: What the passengers are chernalyon, and all of these five hundred are cheating on you. The pockets are fast clogged, passengers continue to throw banknotes where they should not throw them. In the end, you die from excess paper in the body.