
Ultimate access to all questions.
As a Microsoft Fabric Analytics Engineer Associate working on optimizing a data pipeline in Azure Data Factory, you encounter performance issues with a dataflow writing data to a Delta table due to a high volume of concurrent writes. The organization emphasizes minimizing costs while ensuring data integrity and scalability. Considering these constraints, which of the following approaches would BEST optimize the write operations to the Delta table? (Choose one option.)
A
Increase the batch size of the write operations to reduce the number of operations, potentially lowering costs but risking increased latency for large batches.
B
Implement a queuing mechanism to serialize the write operations, reducing contention and lock contention without significantly increasing costs.
C
Use the 'overwrite' option to replace the entire table with each write operation, which could simplify the process but may not be feasible for all use cases due to potential data loss and increased compute costs.
D
Use the 'upsert' operation to update the table with new data instead of overwriting it, which could reduce the volume of data written but may not fully address the issue of concurrent writes.