Do research on DDoS Protection using DNS

Please take a look at: <[login to view URL]> Your job is do research and write fully documentation about DDoS protection using DNS like that website do. I want to know how can they prevent website from DDoS attack. This project will end if your documentation provides valid way to prevent DDoS attack. You can use any information from the internet, or paper or anything else. When bidding, please provide me the table content of your documentation. ## Deliverables Demo application is optional, but greatly appreciate.