AWS Certified Solutions Architect – Professional SAP-C01 – Question184

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?

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:

Explanation: 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, and if you have also set up push sync, notify other devices immediately that an update is available.
Reference:
http://docs.aws.amazon.com/cognito/devguide/sync/