What is the following command trying to accomplish? C:\> nmap -sU -p445 192.168.0.0/24

The correct answer is B. Verify that UDP port 445 is open for the 192.168.0.0 network. Breaking down the flags: '-sU' instructs nmap to perform a UDP scan (not TCP), and '-p445' targets port 445 specifically. The target '192.168.0.0/24' scans all 256 hosts on that subnet. Therefore, the command is verifying whether UDP port 445 is open across the network. Port…

Submitted by minji_kr· Apr 18, 2026Network Forensics

Question

What is the following command trying to accomplish? C:> nmap -sU -p445 192.168.0.0/24

Options

AVerify that TCP port 445 is open for the 192.168.0.0 network
BVerify that UDP port 445 is open for the 192.168.0.0 network
CVerify that UDP port 445 is closed for the 192.168.0.0 network
DVerify that NETBIOS is running for the 192.168.0.0 network

How the community answered

(39 responses)

A
5% (2)
B
92% (36)
D
3% (1)

Explanation

Breaking down the flags: '-sU' instructs nmap to perform a UDP scan (not TCP), and '-p445' targets port 445 specifically. The target '192.168.0.0/24' scans all 256 hosts on that subnet. Therefore, the command is verifying whether UDP port 445 is open across the network. Port 445 is used by SMB; while it commonly runs over TCP, the '-sU' flag explicitly makes this a UDP probe.

Topics

#Nmap#Port Scanning#UDP#Network Scanning

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