AWS Certified Security – Specialty (SCS-C03) — Question 33

A corporate cloud security policy slates that communications between the company's VPC and KMS must travel entirely within the AWS network and not use public service endpoints.
Which combination of the following actions MOST satisfies this requirement? (Choose two.)

Answer options

• A. Add the aws:sourceVpce condition to the AWS KMS key policy referencing the company’s VPC endpoint ID.
• B. Remove the VPC internet gateway from the VPC and add a virtual private gateway to the VPC to prevent direct, public internet connectivity.
• C. Create a VPC endpoint for AWS KMS with private DNS enabled.
• D. Use the KMS Import Key feature to securely transfer the AWS KMS key over a VPN.
• E. Add the following condition to the AWS KMS key policy: "aws:SourceIp": "10.0.0.0/16".

Correct answer: A, C

Explanation

The correct answers, A and C, ensure that communications remain within the AWS network by using VPC endpoints. Option B, while it prevents public access, does not directly relate to KMS access. Option D introduces a VPN, which could be unnecessary for this purpose, and option E could allow access from outside the VPC, violating the policy.