AWS Certified Solutions Architect – Professional — Question 174

Cognito Sync is an AWS service that you can use to synchronize user profile data across mobile devices without requiring your own backend. When the device is online, you can synchronize data.
If you also set up push sync, what does it allow you to do?

Answer options

• A. Notify other devices that a user profile is available across multiple devices
• B. Synchronize user profile data with less latency
• C. Notify other devices immediately that an update is available
• D. Synchronize online data faster

Correct answer: C

Explanation

The correct answer is C because push sync enables real-time notifications to other devices when there is an update, ensuring that users receive the most current data. Options A and B do not capture the immediate notification feature, while D focuses on speed rather than communication of updates.