A Company Received Its Latest Bill with a Large Increase

question 79

Multiple Choice

A company received its latest bill with a large increase in the number of requests against Amazon SQS as compared to the month prior. The company is not aware of any changes in its SQS usage. The company is concerned about the cost increase and who or what was making these calls. What should the SysOps Administrator use to validate the calls made to SQS?

• A) AWS CloudTrail
• B) Amazon CloudWatch
• C) AWS Cost Explorer
• D) Amazon S3 server access logs

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Definitions:

Expected Count

The theoretically predicted number of times an event is anticipated to occur in a statistical experiment based on a specific hypothesis.

Poisson Distribution

A probability distribution that expresses the likelihood of a given number of events occurring in a fixed interval of time or space, assuming that these events occur with a known constant rate and independently of the time since the last event.

Fixed Interval

A schedule of reinforcement where rewards are provided after a set period of time, used in behaviour analysis.

Degrees of Freedom

The quantity of distinct values or amounts that can be attributed to a statistical distribution.