Correct Answer: B
Explanation/Reference:
Explanation:
A screened-subnet architecture is the most secure solution as it adds another layer of security to the screened-host architecture, which in turn is more secure than both Dual-homed host firewalls and Packet- filtering firewalls.
Incorrect Answers:
A: Dual-homed host firewalls are less secure compared to screened-host firewall.
C: Screened-host firewalls are less secure compared to Screened-subnet firewalls, as the screened- subnet architecture is missing.
A screened host is a firewall that communicates directly with a perimeter router and the internal network.
D: A packet-filtering firewall is part of a screened-host firewall architecture, but is less secure as the screened-host firewall is missing.
References:
Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 646