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Exam Professional Cloud Developer topic 1 question 288 discussion

Actual exam question from Google's Professional Cloud Developer
Question #: 288
Topic #: 1
[All Professional Cloud Developer Questions]

You are developing a mobile application that allows users to create and manage to-do lists. Your application has the following requirements:

• Store and synchronize data between different mobile devices.
• Support offline access.
• Provide real-time updates on each user's device.

You need to implement a database solution while minimizing operational effort. Which approach should you use?

  • A. Create a Cloud SQL for MySQL instance. Implement a data model to store to-do list information. Create indexes for the most heavily and frequently used queries.
  • B. Create a Bigtable instance. Design a database schema to avoid hotspots when writing data. Use a Bigtable change stream to capture data changes.
  • C. Use Firestore as the database. Configure Firestore offline persistence to cache a copy of the Firestore data. Listen to document changes to update applications whenever there are document changes.
  • D. Implement a SQLite database on each user's device. Use a scheduled job to synchronize each device database with a copy stored in Cloud Storage.
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Suggested Answer: C 🗳️
by anshad666 at Oct. 12, 2024, 4:55 a.m.

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anshad666
1 month, 1 week ago
Selected Answer: C
Firestore is a fully managed NoSQL database that provides real-time synchronization and offline access out of the box, making it ideal for mobile applications.
upvoted 1 times
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