Your company has an e-commerce application accessed by users all over the world. You have EC2 instances deployed in multiple regions. You want to monitor the performance of these EC2 instances. How can you use CloudWatch to monitor these instances?

Answer options:

A.Create separate dashboards in every region.
B.Register instances running in different regions to CloudWatch.
C.Have one single dashboard to report metrics to CloudWatch from different regions.
D.This is not possible.

Answer – C
You can monitor AWS resources in multiple regions using a single CloudWatch dashboard.
For more information on the Cloudwatch dashboard, please refer to the below URL
http://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/cross_region_dashboard.html