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CEH - Denial-of-Service - DDoS Case Study
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In the 2016 Mirai botnet DDoS attack against DNS provider Dyn, which of the following factors most significantly contributed to the attack's effectiveness?
a.
The use of a previously unknown zero-day vulnerability in DNS server software
b.
The exploitation of factory default credentials in IoT devices
c.
The botnet's advanced ability to encrypt attack traffic to bypass common detection methods
d.
The implementation of a multi-stage TCP reflection technique that amplified traffic by 300x
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