You're managing a large-scale IoT application on Google Cloud. The application should ingest data from millions of IoT devices and perform real-time analytics. Which combination of services should you use for the most efficient real-time analytics?
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Correct answer: Cloud Pub/Sub + Dataflow + BigQuery.
Why this is the answer
*Explanation:* The correct choice is A. Cloud Pub/Sub for data ingestion, Dataflow for real-time processing, and BigQuery for efficient real-time analytics. This combination provides the scalability and capabilities needed for handling data from millions of IoT devices and performing real-time analytics. Options B, C, D, and E are not well-suited for efficient real-time analytics in the context of a large-scale IoT application.
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