You notice that five of your 10 S3 buckets are no longer available in your account, and you assume that they have been deleted. You are unsure who may have deleted them, and no one is taking responsibility. What should you do to investigate and find out who deleted the S3 buckets?
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Correct Answer:B
CloudTrail is logging service that logs actions taken by AWS users in your AWS account, such as creating/deleting S3 buckets, starting/stopping EC2 stances, etc.
Under what circumstances would you choose to use the AWS service CloudTrail?
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Correct Answer:B
CloudTrail is AWS's logging service used to log actions taken by users in your AWS account.
What best describes the concept of elasticity?
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Correct Answer:C
Elasticity (think of a rubber band) defines a system that can easily (and cost-effectively) grow and shrink based on required demand.
What is the term used to describe giving an AWS user only access to the exact services he/she needs to do the required job and nothing more?
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Correct Answer:B
What best describes the concept of high availability?
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Correct Answer:D
High availability refers to the concept that something will be accessible when you try to access it. An object or web application is "highly available" when it is accessible a vast majority of the time.