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A startup is building a new mobile backend that requires a highly scalable, fully managed NoSQL database. The database needs to synchronize data across multiple devices in real-time and support offline capabilities. Which Google Cloud product is the best fit?

  1. AGoogle Cloud SQL
  2. BGoogle Cloud Spanner
  3. CGoogle Cloud Bigtable
  4. DGoogle Cloud Firestore
Show answer & explanation

Correct answer: D. Google Cloud Firestore

Google Cloud Firestore is a flexible, scalable NoSQL document database designed for mobile, web, and server development. It offers real-time synchronization, offline support, and is fully managed, perfectly suiting the requirements.

Why the other options are wrong

  • A. Cloud SQL is a relational database, not NoSQL, and doesn't offer real-time synchronization or offline capabilities directly.
  • B. Cloud Spanner is a globally distributed relational database, not NoSQL, and is generally for different use cases than a mobile backend with real-time sync.
  • C. Bigtable is a NoSQL wide-column database for analytical and operational workloads with very high throughput, but lacks the real-time sync and offline capabilities of Firestore for mobile apps.

Google Cloud Firestore

Google Cloud Firestore is a flexible, scalable NoSQL document database for mobile, web, and server development, offering real-time data synchronization and offline support.

  • Document-oriented data model.
  • Real-time listeners for instant data updates.
  • Offline first architecture with local data persistence.
  • Fully managed and serverless.

Memory trick: For 'F'ast 'F'uture 'F'eatures on 'F'ire, use 'Firestore'.

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