ISC2 Systems Security Certified Practitioner (SSCP) Practice Question
In an AWS VPC, web servers run in a public subnet and application servers in a private subnet. A virtual firewall sits between the subnets. The security team wants the device to automatically allow response packets for outbound connections from the private subnet, block unsolicited inbound traffic, avoid deep payload inspection, and keep latency low. Which firewall filtering method meets these needs?
Stateful inspection firewalls track connection state information in a table and automatically allow return traffic that matches an established session, so no separate inbound rule is needed for replies. Because they evaluate only header data up to the transport layer, they introduce far less latency than application-layer proxies or deep packet inspection. Stateless filters lack session awareness and would drop the reply packets.
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ISC2 Systems Security Certified Practitioner (SSCP)
Network and Communication Security
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