A penetration tester is scanning a customer subnet and wants to scan ports that are known to have only well-known UDP services present. Which of the following can the tester use to scan for SNMP. NTP, NetBIOS, and DNS?
A.
nmap -vv -sUV -p 53,123,137-139,161 192.168.1.0/24 -oA udpscan
B.
nmap -vv -sXV -p 53-123,137,139,161 192.168.1.0/24 -oA udpscan
-vv: Increases verbosity to give more detailed output.
-sU: Specifies a UDP scan.
-sV: Enables version detection.
-p 53,123,137-139,161: Specifies the ports to scan (DNS, NTP, NetBIOS, and SNMP).
192.168.1.0/24: Specifies the subnet to scan.
-oA udpscan: Outputs the scan results in all available formats (normal, XML, and grepable) with the base name udpscan.
B. nmap -vv -sXV -p 53-123,137,139,161 192.168.1.0/24 -oA udpscan: This command incorrectly specifies a range (53-123) that includes non-relevant ports and uses -sX, which is for Xmas scan, not suitable for UDP.
C. nmap -vv -sTV -p 53, 123, 137-139,161,123 192.168.1.0/24 -oA udpscan: This command uses -sT, which is for TCP connect scan, not suitable for UDP.
D. nmap -vv -sUV -p 53-161,192.168.1.0 -oA udpscan: This command uses an incorrect port range (53-161) that includes non-relevant ports and incorrectly formats the target subnet.
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