SAA-C03 Domain 3: Design Secure Architectures

A hybrid environment must support a goal to isolate subnets with stateless subnet firewalls without changing application code. What should you implement? isolate subnets with stateless subnet firewalls.

Multiple choice — select one answer

Answer choices

  1. a. AWS Security Hub
  2. b. AWS CloudTrail
  3. c. Network ACLs combined with security groups
  4. d. Open SG 0.0.0.0/0 on all ports

Architectural breakdown & explanation

Defense in depth uses NACLs and security groups.

Correct answer(s): c. Network ACLs combined with security groups

Exam domain: Domain 3: Design Secure Architectures (24% weight on the official guide).

Official documentation & study links

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