ExpertAWS SAP-C02 · Question 70 · Domain 1.3: Reliability & Resilience
An application is deployed across multiple AWS Regions. The application uses Amazon DynamoDB Global Tables. Users are routed to the nearest region using Amazon Route 53. During a regional outage, Route 53 automatically routes users to a healthy region. However, users complain that they cannot see data they wrote just seconds before the outage. What is the cause of this?
An application is deployed across multiple AWS Regions. The application uses Amazon DynamoDB Global Tables. Users are routed to the nearest region using Amazon Route 53. During a regional outage, Route 53 automatically routes users to a healthy region. However, users complain that they cannot see data they wrote just seconds before the outage. What is the cause of this?
Answer options:
Route 53 cached the old data.
DynamoDB Global Tables use asynchronous replication, and the data had not yet replicated before the region failed.
The application needs to use strongly consistent reads in the new region.
DynamoDB Global Tables are read-only in secondary regions.
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