A Distributed Denial-of-Service, also known as DDoS attack in computing is a type of cyber-attack where the attacker using several sources tries to make a machine or network resource unavailable to its authorized users by temporarily or indefinitely disrupting services of a host connected to a network. This attack is typically accomplished by flooding the targeted machine or resource with requests in an attempt to overload the systems.
In a distributed denial-of-service attack (DDoS attack) the incoming traffic flooding the victim originates from many different sources while in a DoS attack it comes from a single source.
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