SAP-C02 · Question #610
A North American company with headquarters on the East Coast is deploying a new web application running on Amazon EC2 in the us-east-1 Region. The application should dynamically scale to meet user…
The correct answer is B. Deploy an Application Load Balancer (ALB) spanning multiple Availability Zones (AZs) to the VPC. To deploy a scalable, resilient web application in us-east-1 with active-passive disaster recovery in us-west-1, configure an ALB and Auto Scaling group across multiple AZs in us-east-1, and use Route 53 failover routing to a secondary deployment in us-west-1.
Question
A North American company with headquarters on the East Coast is deploying a new web application running on Amazon EC2 in the us-east-1 Region. The application should dynamically scale to meet user demand and maintain resiliency. Additionally, the application must have disaster recovery capabilities in an active-passive configuration with the us-west-1 Region. Which steps should a solutions architect take after creating a VPC in the us-east-1 Region?
Options
- ACreate a VPC in the us-west-1 Region. Use inter-Region VPC peering to connect both VPCs.
- BDeploy an Application Load Balancer (ALB) spanning multiple Availability Zones (AZs) to the VPC
- CCreate a VPC in the us-west-1 Region. Use inter-Region VPC peering to connect both VPCs.
- DDeploy an Application Load Balancer (ALB) spanning multiple Availability Zones (AZs) to the VPC
How the community answered
(45 responses)- A7% (3)
- B80% (36)
- C2% (1)
- D11% (5)
Why each option
To deploy a scalable, resilient web application in us-east-1 with active-passive disaster recovery in us-west-1, configure an ALB and Auto Scaling group across multiple AZs in us-east-1, and use Route 53 failover routing to a secondary deployment in us-west-1.
Creating a VPC in us-west-1 and using inter-Region VPC peering is a network connectivity step, but it does not address application scaling, resiliency within the primary region, nor does it define the active-passive DR routing mechanism.
Deploying an Application Load Balancer and an Auto Scaling group across multiple Availability Zones in us-east-1 ensures high availability and dynamic scaling for the primary region. Configuring Amazon Route 53 with active-passive failover routing to a separate deployment in us-west-1 directly implements the required disaster recovery strategy.
This option is a duplicate of option A.
This option is a duplicate of option B, providing less specific detail.
Concept tested: Multi-AZ, Auto Scaling, ALB, Route 53 failover, active-passive DR
Source: https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover-active-passive.html
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