What role do cloud-based content delivery networks (CDNs) play in DDoS attack prevention?

CDNs act as a distributed layer between users and the origin server. They absorb a significant portion of DDoS traffic by caching content closer to users, reducing the load on the origin server. CDNs can also implement DDoS mitigation techniques like traffic scrubbing and filtering at their edge locations, effectively shielding the origin from volumetric attacks.