EC-Council
312-50V13 · Question #301
If you send a TCP ACK segment to a known closed port on a firewall but it does not respond with an RST. What do you know about the firewall you are scanning?
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Submitted by manish99· Mar 6, 2026Evading IDS, Firewalls, and Honeypots
Question
If you send a TCP ACK segment to a known closed port on a firewall but it does not respond with an RST. What do you know about the firewall you are scanning?
Options
- AThere is no firewall in place.
- BThis event does not tell you encrypting about the firewall.
- CIt is a stateful firewall
- DIt Is a non-stateful firewall.
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Topics
#TCP ACK scan#Stateful firewall#Firewall detection#Network scanning