What would you enter, if you wanted to perform a stealth scan using Nmap?

nmap -sU performs a UDP scan, not a stealth scan - it probes UDP ports rather than using the SYN stealth technique.

nmap -sS sends a SYN packet and waits for a response, but never completes the three-way handshake by sending the final ACK. This half-open technique avoids creating a full session, making it harder for logging systems and firewalls to record the connection, which is why it is classified as a stealth scan.

nmap -sM is the Maimon scan (FIN/ACK probe) - a lesser-used technique and not the standard stealth scan method.

nmap -sT performs a full TCP connect scan, which completes the entire three-way handshake and is easily logged by target systems, making it the opposite of stealthy.