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.