You want to scan the live machine on the LAN, what type of scan you should use?

A.
Connect

B.
SYN

C.
TCP

D.
UDP

E.
PING

Explanation:
The ping scan is one of the quickest scans that nmap performs, since no actual ports are queried. Unlike a port scan where thousands of packets are transferred between two stations, a ping scan requires only two frames. This scan is useful for locating active devices or determining if ICMP is passing through a firewall.