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Question 11

You are designing a basket abandonment system for an ecommerce company. The system will send a message to a user based on these rules:
✑ No interaction by the user on the site for 1 hour
Has added more than $30 worth of products to the basket

✑ Has not completed a transaction
You use Google Cloud Dataflow to process the data and decide if a message should be sent. How should you design the pipeline?

  • A. Use a fixed-time window with a duration of 60 minutes.
  • B. Use a sliding time window with a duration of 60 minutes.
  • C. Use a session window with a gap time duration of 60 minutes.
  • D. Use a global window with a time based trigger with a delay of 60 minutes.
https://cloud.google.com/dataflow/docs/concepts/streaming-pipelines
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