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You have created a DynamoDB table to support your aws video

developer video for you have created a DynamoDB table to support your application and provisioned RCU and WCU to it so that your application has been running

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Full Certification Question

You have created a DynamoDB table to support your application and provisioned RCU and WCU to it so that your application has been running for over a year now without any throttling issues. Your application now requires a second type of query over your table and as such, you have decided to create an LSI and a GSI on a new table to support that use case. One month after having implemented such indexes, it seems your table is experiencing throttling. Upon looking at the table's metrics, it seems the RCU and WCU provisioned are still sufficient. What's happening?