enough write capacity to accommodate the write
no additional write cost for the index
100 bytes of overhead per index item
the size less than or equal to 1 KB
Explanations:
The provisioned throughput settings must have enough write capacity to accommodate the write. If the write request exceeds the provisioned write capacity of the table or its global secondary indexes, the write will be throttled.
While global secondary indexes do incur additional write costs, the provisioned throughput requirements do not explicitly state that there should be no additional write cost. Instead, the requirement focuses on the total write capacity being sufficient to handle the requested write operation.
The overhead of 100 bytes per index item is a consideration for calculating write costs but is not a strict requirement for a write to succeed. The focus is on the overall write capacity rather than overhead per index item.
The size of an item being less than or equal to 1 KB is relevant for the size of individual writes but does not directly relate to the provisioned throughput settings. The requirement is about the available write capacity rather than the item size itself.