an occasion when a computer network or website is intentionally prevented from working correctly, by a person or group sending a large amount of data at one time

Denial of service results when a huge wave of requests swamps the capacity of a server. 当大量的请求如浪潮般淹没了服务器容量时，拒绝服务攻击便会发生。

By conducting a denial-of-service attack, a hacker overloads a system with information. 为实现拒绝服务攻击，黑客会给系统加载大量信息。