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Q50 Single choice

Your chemical company needs to manually check documentation for customer order. You use a pull

subscription in Pub/Sub so that sales agents get details from the order. You must ensure that you do not process orders twice with different sales agents and that you do not add more complexity to this workflow.

What should you do?

A
Create a transactional database that monitors the pending messages.
B
Create a new Pub/Sub push subscription to monitor the orders processed in the agent's system.
C
Use Pub/Sub exactly-once delivery in your pull subscription.
D
Use a Deduphcate PTransform in Dataflow before sending the messages to the sales agents.

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