AWS Certified SysOps Administrator – Associate (legacy) — Question 36

A company's static website hosted on Amazon S3 was launched recently, and is being used by tens of thousands of users. Subsequently, website users are experiencing 503 service unavailable errors.
Why are these errors occurring?

Answer options

• A. The request rate to Amazon S3 is too high.
• B. There is an error with the Amazon RDS database.
• C. The requests to Amazon S3 do not have the proper permissions.
• D. The users are in a different geographical region and Amazon Route 53 is restricting access.

Correct answer: A

Explanation

The 503 service unavailable errors are typically caused by a server being unable to handle the volume of requests, which indicates that the request rate to Amazon S3 is too high. The other options, such as issues with Amazon RDS, permissions, or geographical restrictions, do not directly relate to the service being unavailable due to high request rates.