What port number would be used if a threat actor was using NTP to direct DDoS attacks?

What port number would be used if a threat actor was using NTP to direct DDoS attacks?

• 443
• 25
• 69
• 123

Explanation: NTP uses UDP port number 123. Threat actors could use port 123 on NTP systems in order to direct DDoS attacks through vulnerabilities in client or server software.

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