Topic 1 Question 264
A company has a web application hosted over 10 Amazon EC2 instances with traffic directed by Amazon Route 53. The company occasionally experiences a timeout error when attempting to browse the application. The networking team finds that some DNS queries return IP addresses of unhealthy instances, resulting in the timeout error.
What should a solutions architect implement to overcome these timeout errors?
Create a Route 53 simple routing policy record for each EC2 instance. Associate a health check with each record.
Create a Route 53 failover routing policy record for each EC2 instance. Associate a health check with each record.
Create an Amazon CloudFront distribution with EC2 instances as its origin. Associate a health check with the EC2 instances.
Create an Application Load Balancer (ALB) with a health check in front of the EC2 instances. Route to the ALB from Route 53.
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- 正解だと思う選択肢: D
D. Create an Application Load Balancer (ALB) with a health check in front of the EC2 instances. Route to the ALB from Route 53.
An Application Load Balancer (ALB) allows you to distribute incoming traffic across multiple backend instances, and can automatically route traffic to healthy instances while removing traffic from unhealthy instances. By using an ALB in front of the EC2 instances and routing traffic to it from Route 53, the load balancer can perform health checks on the instances and only route traffic to healthy instances, which should help to reduce or eliminate timeout errors caused by unhealthy instances.
👍 3Aninina2023/01/14 - 正解だと思う選択肢: D
D is correct
👍 2mhmt44382023/01/15 - 正解だと思う選択肢: B👍 2techhb2023/01/17
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