What is the purpose of ddos ​​attacks and why are they needed?

Question

DDoS Protection

in short, I’m a teapot
, I’m rily wondering
why ddos ​​attacks are needed and for what purpose they are used
well, let’s say I know that they can be used to put a site,
but the question arises why this site can be “restored”
can you explain in the language of dummies pliz

Answer 1

Large Internet companies have millions of downtime hours. Once I read an article where Zaker wrote that he works as a system administrator and he himself is quietly doing DDoS for money, he has a huge botnet, and hundreds of thousands are paid to him for an hour of DDoS. Competitors for example

Answer 2

you sell goods or services on the Internet for 1000 dollars a day, and if you don’t sell anything in a day, you lose 500 dollars a day
you are ddosed for a week and demand 1000 for them to stop
you a) refuse to pay, and in a week you lose 3500 and don’t you earn 7000
you b) pay 1000 and they keep ddosing anyway and you keep losing money

Answer 3

While DDoS'yat, it is impossible to restore in its original form. Because nothing broke, just can not withstand the load. Even if we reboot all the servers, they will again fall under the onslaught of requests.
Just hide behind anti-DDoS services.
The goal is to temporarily stop the server, of course. And without me it was written, why.

Answer 4

why ddos ​​attacks are needed and for what purpose they are used
well let's say I know that they can be used to put a site

While your (say) online store is down, you are losing money.

Answer 5

To temporarily remove a competitor from the market.