AWS SAA-C03 · Question 45 · Domain 3.3: Database Performance
A company uses Amazon DynamoDB to store user activity logs. The partition key is the UserID, and the sort key is the Timestamp. A small number of highly active users are causing ProvisionedThroughputExceededException errors, even though the overall table capacity seems sufficient. What is the MOST likely cause of this issue?
Answer options:
The table has a hot partition due to uneven data access patterns.
The DynamoDB table is located in the wrong AWS Region.
The sort key (Timestamp) is causing sequential writes.
DynamoDB Auto Scaling is not enabled.
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