Beginner
Cybersecurity & Cryptography
Q20 / 100
What is port scanning?
Correct! Well done.
Incorrect.
The correct answer is B) Probing a host's network ports to discover open services, typically the first step in network reconnaissance
B
Correct Answer
Probing a host's network ports to discover open services, typically the first step in network reconnaissance
Explanation
Port scanning (nmap) identifies open TCP/UDP ports and running services. Used by attackers for reconnaissance and by defenders for security audits. SYN scan (-sS) is stealthy; it sends SYN but no ACK.
Progress
20/100