Based on the results below what type of nmap scan was run?

A UDP-only scan (-sU) probes for open UDP ports by sending UDP packets and analyzing ICMP port-unreachable responses, providing no OS identification data.

A ping sweep (-sn or -sP) only determines host availability by sending ICMP echo requests, producing a list of live hosts without any port or OS information.

OS Detection in nmap is triggered by the -O or -A flag and works by sending a series of specially crafted TCP, UDP, and ICMP probes to the target, then comparing the response patterns against a database of known OS fingerprints. The output typically includes the predicted OS name, version, and confidence level, which distinguishes it from simpler scan types.

Banner grabbing uses service version detection (-sV) to capture application banners from open ports, identifying service software versions rather than the underlying OS.