A healthcare application requires a robust messaging system for real-time status updates. The system must also store historical changes for audit purposes. What would be your recommendation?
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Correct answer: Use Pub/Sub for messaging and Firestore for auditing..
Why this is the answer
*Explanation:* Option A fulfills both the real-time messaging and auditing requirements effectively. Option B uses Cloud Tasks and BigQuery, which don't adequately address real-time needs. Option C combines Cloud Endpoints and Cloud Storage, which are not the best fit for this use case. Option D involves Cloud Messaging and Bigtable, which lack robust auditing capabilities. Option E uses Dataflow for messaging and Stackdriver for auditing, which are not tailored for these specific requirements.
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