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Answer: Implement AWS Systems Manager Session Manager for EC2 instance connections.
The correct answer is A: Use AWS Systems Manager Session Manager to connect to the EC2 instances. AWS Systems Manager Session Manager provides secure and auditable instance management without relying on SSH keys. It eliminates the need for shared SSH keys and does not require the generation or distribution of one-time or temporary keys, minimizing administrative overhead. Other options involve more complex management or do not fully eliminate the need for SSH keys.
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A company with numerous EC2 Linux instances in AWS must remove shared SSH keys post-audit. Which solution ensures secure access with minimal administrative effort?
A
Implement AWS Systems Manager Session Manager for EC2 instance connections.
B
Utilize AWS STS to create one-time SSH keys as needed.
C
Enable bastion host SSH access and restrict other instances to only accept connections from bastions.
D
Employ Amazon Cognito for user authentication and AWS Lambda to produce temporary SSH keys.
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