What is a disadvantage of DDNS?

IT Questions BankCategory: CCNA CyberOpsWhat is a disadvantage of DDNS?

What is a disadvantage of DDNS?

  • DDNS is considered malignant and must be monitored by security software.
  • DDNS is unable to co-exist on a network subdomain that also uses DNS.
  • Using free DDNS services, threat actors can quickly and easily generate subdomains and change DNS records.
  • Using DDNS, a change in an existing IP address mapping can take over 24 hours and could result in a disruption of connectivity.

Explanation: Dynamic DNS can be abused by threat actors in various ways. Free DDNS services are especially useful to threat actors. DDNS can be used to facilitate the rapid change of IP address for malware command-and-control servers after the current IP address has become widely blocked.

Exam with this question: CyberOps Associate Final Exam Answers

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