Google Professional Cloud Developer Question 395
Select 2Google Cloud PlatformYou are designing a serverless application on Google Cloud that processes customer orders. Each order's metadata is small (less than 10 KB) and needs to be stored for quick query access. Additionally, large order-related files (such as PDFs and images) need to be stored for later retrieval. Which combination of Google Cloud services is the most appropriate to meet these requirements?
- A
Use Firestore for storing order metadata and Cloud Storage for storing order-related files.
- B
Use Cloud SQL for storing order metadata and Cloud Spanner for storing order-related files.
- C
Use Cloud Bigtable for storing order metadata and Cloud Storage for storing order-related files.
- D
Use Cloud Datastore for storing order metadata and Memorystore for storing order-related files.
- E
Use Firestore for storing both order metadata and order-related files.
Show answer and explanation
Correct answers: A, C
Explanation
Firestore is an ideal choice for storing small, structured, and queryable metadata, while Cloud Storage excels at handling large, unstructured files like PDFs and images. This combination ensures scalability, performance, and cost-effectiveness for the described use case.
- A. Correct.
Firestore is a scalable, NoSQL database suitable for storing small metadata with quick query requirements. Cloud Storage is ideal for storing large, unstructured files like PDFs and images.
- B. Incorrect.
Cloud SQL is a relational database service, which might be overkill for small, NoSQL-style metadata. Cloud Spanner is designed for global-scale relational data, not unstructured file storage.
- C. Correct.
Cloud Bigtable is a NoSQL database optimized for analytical workloads, but it can also support metadata storage with high throughput. Cloud Storage is suitable for storing large files like PDFs and images.
- D. Incorrect.
Cloud Datastore (now integrated into Firestore) is suitable for metadata storage, but Memorystore is an in-memory cache, not suitable for storing large files.
- E. Incorrect.
Firestore is not designed for storing large, unstructured files like PDFs and images. Using it for such purposes would not align with its intended use case.