An ethical hacker is ACK scanning against a network segment he knows is sitting behind a stateful firewall. If a scan packet receives no response, what does that indicate?

Question

Answer

It is impossible to determine any port status from this response.

Answer

The port is not filtered at the firewall.

Answer

The firewall allows the packet, but the device has the port closed.

Answer

The port is filtered at the firewall.

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An ethical hacker is ACK scanning against a network segment he knows is sitting ...

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