In 2016 a massive denial-of-service attack brought down much of the Internet in Europe and the United States. The attack used a ______.

Question

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A denial-of-service attack involves overwhelming a website or network with traffic or requests, making it unavailable to users. This can be done through a botnet, which is a network of infected computers that can be controlled remotely to carry out an attack. A phishing email, worm, or Trojan horse may be used to gain access to a network or computer, but they would not be the primary technique used in a denial-of-service attack.

In 2016 a Massive Denial-Of-Service Attack Brought Down Much of the Internet