A company plans to deploy a global commercial application on Amazon EC2 instances. The deployment solution be designed with the highest redundancy and fault tolerance. Based on this situation, how should the EC2 instances be deployed?

For maximum redundancy and fault tolerance the application should be deployed in multiple AWS Regions and multiple Availability Zones within each of those regions. This architecture may use Elastic Load Balancers and Amazon Route 53 records to direct traffic to instances. Alternatively, it could use AWS Global Accelerator.