An application uses a DynamoDB database for storing user data.
The application starts receiving 400 error codes.
What is the possible cause of the issue?
Click on the arrows to vote for the correct answer
A. B. C. D.Answer: C.
Option A is incorrect because an internal server processing error results in a 500 error code.
Option B is incorrect because if a service were unavailable, a 500 error code would be received.
Option C is CORRECT because exceeding provisioned throughput limit returns a 400 error code.
Option D is incorrect because an unsupported HTTP version would return a 500 error code.
Reference:
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Programming.Errors.htmlThe possible cause of the issue when an application that uses DynamoDB database starts receiving 400 error codes is that the provisioned throughput limit has been exceeded.
DynamoDB uses a provisioned throughput model to ensure consistent performance for read and write operations. Provisioned throughput refers to the maximum number of reads or writes per second that a table or a global secondary index can support. Each DynamoDB table has read and write capacity units, which are the units of capacity that a table can provision for reads and writes per second.
When the provisioned throughput limit is exceeded, DynamoDB returns HTTP 400 errors to the application. This indicates that the request was invalid due to exceeding the provisioned throughput limit. To resolve this issue, the application needs to either reduce the number of read and write requests or increase the provisioned throughput capacity of the table or index.
The other answer choices are less likely to be the cause of the issue. Internal server processing errors (A) and unsupported HTTP version (D) would not result in consistent HTTP 400 errors. If the service was unavailable (B), the application would receive HTTP 503 errors.