Question 1

Correct use case for Cloud Storage:

❌ Root filesystem for VM
❌ Data warehouse
✅ Durable and highly available object storage
❌ RDBMS services

Explanation:
Cloud Storage is meant for scalable object storage, not block storage or relational databases.

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Question 2

Which relational database service scales to the highest sizes?

❌ Bigtable (not relational)
❌ Cloud SQL (limited size)
❌ Firestore (NoSQL)
✅ Spanner

Explanation:
Cloud Spanner is Google’s horizontally scalable relational database with global consistency.

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Question 3

Why use Coldline storage?

❌ Store frequently accessed data
✅ Save money storing infrequently accessed data
❌ Improve security
❌ Use a special API

Explanation:
Coldline is optimized for low-cost archival where data is rarely accessed.

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🧾 Summary Table