EC-Council: Computer Hacking Forensic Investigator(CHFI-V10)
Module 8 : Network Forensics
         
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QID: 773  
   
Michael works for Kimball Construction Company as senior security analyst. As part of yearly security audit, Michael scans his network for vulnerabilities. Using Nmap, Michael conducts XMAS scan and most of the ports scanned do not give a response. In what state are these ports?


 
A:    Closed
 
B:    Open
C:    Stealth
 
D:    Filtered
 
         

 
 

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Comunity Comments:

Banwari on 21/05/2025
Opted Answer: D
Answer D: Since most of the scanned ports did not respond or did not give a response, indicating that they are in a filtered state.

XMAS Scans Work:
If the target port is closed, the system responds with a RST (Reset) packet.

If the port is open, the packet is ignored, meaning no response is received.

If the port is filtered, the packet is dropped, and no response is sent.

Nmap could not determine whether these filtered ports are open or closed possibly due to firewall or security mechanism is blocking the packets, preventing any response from the target system.

















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