Google Cloud Professional Cloud Developer PCD — Topic 1 Question 288

Question

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?

Accepted Answer

Correct answer: C. The correct answer is C. Option 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. Firestore is a serverless, autoscaling NoSQL document database ideal for app and user data. This option meets the real-time / low-latency performance requirement.

Google Cloud Professional Cloud Developer PCD — Question 288