Câu 93: PT0-002: CompTIA PenTest+ Certification Exam

A penetration tester ran an Nmap scan on an Internet-facing network device with the -F option and found a few open ports. To further enumerate, the tester ran another scan using the following command: nmap -O -A -sS -p- 100.100.100.50Nmap returned that all 65,535 ports were filteredWhich of the following MOST likely occurred on the second scan?

1. A. A firewall or IPS blocked the scan. — đáp án hiện tại
2. B. The penetration tester used unsupported flags.
3. C. The edge network device was disconnected.
4. D. The scan returned ICMP echo replies.