What is the following command trying to accomplish?
A.
Verify that UDP port 445 is open for the 192.168.0.0 network
B.
Verify that TCP port 445 is open for the 192.168.0.0 network
C.
Verify that NETBIOS is running for the 192.168.0.0 network
D.
Verify that UDP port 445 is closed for the 192.168.0.0 network
No command – FAIL!
c_\> nmap -sU -p445 192.168.0.0/24
c:\> nmap -sU -p445 192.168.0.0/24
UDP Scan (-sU)
While most popular services on the Internet run over the TCP protocol, UDP services are widely deployed. DNS, SNMP, and DHCP (registered ports 53, 161/162, and 67/68) are three of the most common.
UDP scan is activated with the -sU option. It can be combined with a TCP scan type such as SYN scan (-sS) to check both protocols during the same run.