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Certified Ethical Hacker (CEH) Practice Question

During subnet reconnaissance you run an Nmap -sS -sV scan against four suspected web servers. Nmap reports ports 1-1024 all open, every banner says HoneyWeb 1.0, ISNs increase sequentially, and each host shows 0.02-second uptime. What is the most likely explanation?

  • The results indicate the servers sit behind a stateful firewall that transparently proxies every incoming TCP connection.

  • The scan artefacts suggest the systems are protected by network address translation (NAT), which masks real port states.

  • The hosts are likely instances of a low-interaction honeypot that is emulating services on all ports.

  • The identical banners and ISNs are normal for nodes in a highly available load-balanced web cluster.

Certified Ethical Hacker (CEH)
Network and Perimeter Hacking
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