Exam AWS Certified Solutions Architect - Professional topic 1 question 118 discussion

D https://aws.amazon.com/cognito/faqs/ Q: What is a silent push notification? Amazon Cognito uses the Amazon Simple Notification Service (SNS) to send silent push notifications to devices. A silent push notification is a push message that is received by your application on a user's device that will not be seen by the user. Q: How do I use push synchronization? To enable push synchronization you need to declare a platform application using the Amazon SNS page in the AWS Management Console. Then, from the identity pool page in the Amazon Cognito page of the AWS Management Console, you can link the SNS platform application to your Cognito identity pool. Amazon Cognito automatically utilizes the SNS platform application to notify devices of changes.

D. push

Push Notifications is keyword

Yes, D I don't thins it appears in SAP exam

Q: How is data synchronized with Amazon Cognito? You can programmatically trigger the sync of data sets between client devices and the Amazon Cognito sync store by using the synchronize() method in the AWS Mobile SDK. The synchronize() method reads the latest version of the data available in the Amazon Cognito sync store and compares it to the local, cached copy. After comparison, the synchronize() method writes the latest updates as necessary to the local data store and the Amazon Cognito sync store. By default Amazon Cognito maintains the last-written version of the data. You can override this behavior and resolve data conflicts programmatically. In addition, push synchronization allows you to use Amazon Cognito to send a silent push notification to all devices associated with an identity to notify them that new data is available.