While performing an Nmap scan against a host, Paola determines the existence of a firewall. In an attempt to determine whether the firewall is stateful or stateless, which of the following options…

The correct answer is A. -sA. -sA (TCP ACK scan) This scan is different than the others discussed so far in that it never determines open (or even open|filtered) ports. It is used to map out firewall rulesets, determining whether they are stateful or not and which ports are filtered.

Submitted by krish.m· Mar 4, 2026Reconnaissance Techniques

Question

While performing an Nmap scan against a host, Paola determines the existence of a firewall. In an attempt to determine whether the firewall is stateful or stateless, which of the following options would be best to use?

Options

A-sA
B-sX
C-sT
D-sF

How the community answered

(45 responses)

A
76% (34)
B
7% (3)
C
13% (6)
D
4% (2)

Explanation

-sA (TCP ACK scan) This scan is different than the others discussed so far in that it never determines open (or even open|filtered) ports. It is used to map out firewall rulesets, determining whether they are stateful or not and which ports are filtered.

Topics

#Nmap#firewall detection#stateful firewall#stateless firewall

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