Jenny a well known hacker scanning to remote host of 204.4.4.4 using nmap. She got the scanned output but she saw that 25 port states is filtered. What is the meaning of filtered port State?
A.
Can Accessible
B.
Filtered by firewall
C.
Closed
D.
None of above
Explanation:
The state is either open, filtered, closed, or unfiltered. Filtered means that a firewall, filter, or other network obstacle is blocking the port so that Nmap cannot tell whether it is open or closed.