Why does AWS security group stateful behavior simplify firewall management compared to stateless firewalls?

hard📝 Conceptual Q10 of 15

AWS - Security Groups and Network ACLs

ABecause it tracks user sessions for billing purposes

BBecause return traffic is automatically allowed, reducing rule complexity

CBecause it requires explicit rules for both inbound and outbound traffic

DBecause it blocks all traffic by default

Step-by-Step Solution

Solution:

Step 1: Understand stateful vs stateless firewall difference
Stateful firewalls remember connection state and allow return traffic automatically.
Step 2: Apply to AWS security groups
This reduces the number of rules needed, simplifying management.
Final Answer:
Return traffic is automatically allowed, reducing rule complexity -> Option B
Quick Check:
Stateful = simpler rules due to auto return traffic [OK]

Quick Trick: Stateful firewalls auto-allow return traffic, simplifying rules [OK]

Common Mistakes:

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