Which Google Cloud pairing offers a fully managed MongoDB service with live migration that supports continuous schema changes, data validation, rapid rollback, and cutover in under 20 minutes?

Question

Options

• ADatabase Migration Service and AlloyDB for PostgreSQL
• BCloud Dataflow with MongoDB connector and Firestore in Native mode
• CMongoDB Atlas Live Migration and MongoDB Atlas on Google Cloud

• A
  9% (3)
• B
  3% (1)
• C
  88% (29)

Explanation

The question specifies a fully managed MongoDB service-which immediately narrows the answer to a native MongoDB offering. MongoDB Atlas on Google Cloud is the official, fully managed MongoDB service available through Google Cloud Marketplace. MongoDB Atlas Live Migration is the purpose-built tool from MongoDB that enables online migration with continuous replication of changes from the source cluster to the Atlas target, supports rolling schema changes during migration, performs data validation, allows rapid rollback if issues are found, and is engineered to achieve cutover in under 20 minutes. Option A (Database Migration Service + AlloyDB) supports PostgreSQL, MySQL, and SQL Server sources targeting AlloyDB; it does not handle MongoDB workloads. Option B (Dataflow + Firestore) uses a document database but Firestore is not API-compatible with MongoDB and does not provide the live-migration capabilities described.

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