AWS Certified SysOps Administrator – Associate (legacy) — Question 27

A SysOps Administrator is receiving multiple reports from customers that they are unable to connect to the company's website. which is being served through
Amazon CloudFront. Customers are receiving HTTP response codes for both 4XX and 5XX errors.
Which metric can the Administrator use to monitor the elevated error rates in CloudFront?

Answer options

• A. TotalErrorRate
• B. RejectedConnectionCount
• C. NetworkTransmitThroughput
• D. HealthyHostCount

Correct answer: A

Explanation

The TotalErrorRate metric provides a comprehensive view of all error responses returned by CloudFront, making it the most suitable choice for monitoring error rates. The RejectedConnectionCount metric tracks connections that were not accepted, while NetworkTransmitThroughput measures data transfer rates and HealthyHostCount indicates operational instances, neither of which directly reflect error rates.