Your company uses a proprietary system to send inventory data every 6 hours to a data ingestion service
in the cloud. Transmitted data includes a payload of several fields and the timestamp of the transmission. If
there are any concerns about a transmission, the system re-transmits the data. How should you
deduplicate the data most efficiency?
Recent Comments (The most recent comments are at the top.)
I think it is D.
https://cloud.google.com/pubsub/docs/faq
How do I detect duplicate messages?
Cloud Pub/Sub assigns a unique `message_id` to each message, which can be used to detect duplicate messages received by the subscriber. This will not, however, allow you to detect duplicates resulting from multiple publish requests on the same data. Detecting those will require a unique message identifier to be provided by the publisher. See Cloud Pub/Sub I/O for further discussion.