A Company Had One of Its Amazon EC2 Key Pairs

question 208

Multiple Choice

A company had one of its Amazon EC2 key pairs compromised. A Security Engineer must identify which current Linux EC2 instances were deployed and used the compromised key pair. How can this task be accomplished?

• A) Obtain the list of instances by directly querying Amazon EC2 using: aws ec2 describe-instances --filters "Name=key-name,Values=KEYNAMEHERE" . Obtain the list of instances by directly querying Amazon EC2 using: aws ec2 describe-instances --filters "Name=key-name,Values=KEYNAMEHERE" .
• B) Obtain the fingerprint for the key pair from the AWS Management Console, then search for the fingerprint in the Amazon Inspector logs.
• C) Obtain the output from the EC2 instance metadata using: curl http://169.254.169.254/latest/meta-data/public-keys/0/ . Obtain the output from the EC2 instance metadata using: curl http://169.254.169.254/latest/meta-data/public-keys/0/
• D) Obtain the fingerprint for the key pair from the AWS Management Console, then search for the fingerprint in Amazon CloudWatch Logs using: aws logs filter-log-events . Obtain the fingerprint for the key pair from the AWS Management Console, then search for the fingerprint in Amazon CloudWatch Logs using: aws logs filter-log-events

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Definitions:

Marginal Utility

The enhanced gratification or value a customer derives from consuming another unit of a good or service.

Utility Equilibrium

A state in consumer theory where a consumer efficiently allocates their income to maximize their total utility.

Marginal Utility Data

Marginal utility data refers to information that describes the change in utility or satisfaction a consumer derives from consuming one additional unit of a good or service.

Utility Maximization

The process by which individuals allocate their resources to maximize their subjective well-being or satisfaction.