SOA-C02 · Question #632
A web application runs on Amazon EC2 instances in the us-east-1 Region and the us-west-2 Region. The instances run behind an Application Load Balancer (ALB) in each Region. An Amazon Route 53 hosted…
The correct answer is A. Implement a Route 53 health check and a failover routing policy for the hosted zone. Configure. Using a Route 53 failover routing policy with a health check for the primary us-east-1 resources ensures that traffic automatically fails over to the us- west-2 disaster recovery resources only when the primary resources become unhealthy. This approach meets the requirement…
Question
A web application runs on Amazon EC2 instances in the us-east-1 Region and the us-west-2 Region. The instances run behind an Application Load Balancer (ALB) in each Region. An Amazon Route 53 hosted zone controls DNS records. The instances in us-east-1 are production resources. The instances in us-west-2 are for disaster recovery. EC2 Auto Scaling groups are configured based on the ALBRequestCountPerTarget metric in both Regions. A SysOps administrator must implement a solution that provides failover from us-east-1 to us- west-2. The instances in us-west-2 must be used only for failover. Which solution will meet these requirements?
Options
- AImplement a Route 53 health check and a failover routing policy for the hosted zone. Configure
- BImplement a Route 53 health check and a latency routing policy for the hosted zone. Configure
- CIn us-east-1, create an Amazon CloudWatch alarm that enters ALARM state when an EC2
- DIn us-west-2, create an Amazon CloudWatch alarm that enters ALARM state when resources in
How the community answered
(46 responses)- A80% (37)
- B13% (6)
- C4% (2)
- D2% (1)
Explanation
Using a Route 53 failover routing policy with a health check for the primary us-east-1 resources ensures that traffic automatically fails over to the us- west-2 disaster recovery resources only when the primary resources become unhealthy. This approach meets the requirement with minimal configuration overhead.
Topics
Community Discussion
No community discussion yet for this question.