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Question 240 - PT0-002 discussion

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A security analyst needs to perform a scan for SMB port 445 over a/16 network. Which of the following commands would be the BEST option when stealth is not a concern and the task is time sensitive?

A.
Nmap -s 445 -Pn -T5 172.21.0.0/16
Answers
A.
Nmap -s 445 -Pn -T5 172.21.0.0/16
B.
Nmap -p 445 -n -T4 -open 172.21.0.0/16
Answers
B.
Nmap -p 445 -n -T4 -open 172.21.0.0/16
C.
Nmap -sV --script=smb* 172.21.0.0/16
Answers
C.
Nmap -sV --script=smb* 172.21.0.0/16
D.
Nmap -p 445 -max -sT 172. 21.0.0/16
Answers
D.
Nmap -p 445 -max -sT 172. 21.0.0/16
Suggested answer: B

Explanation:

Nmap is a tool that can perform network scanning and enumeration by sending packets to hosts and analyzing their responses. The command Nmap -p 445 -n -T4 -open 172.21.0.0/16 would scan for SMB port 445 over a /16 network with the following options:

-p 445 specifies the port number to scan.

-n disables DNS resolution, which can speed up the scan by avoiding unnecessary queries.

-T4 sets the timing template to aggressive, which increases the speed of the scan by sending packets faster and waiting less for responses.

-open only shows hosts that have open ports, which can reduce the output and focus on relevant results. The other commands are not optimal for scanning SMB port 445 over a /16 network when stealth is not a concern and the task is time sensitive.

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asked 02/10/2024
Tom Ogan
34 questions
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