Home » Amazon » AWS DevOps Engineer Professional v.2 » What is themost simple tool on AWS to achieve this with?
You need to create a simple, holistic check for your system’s general availablity and uptime. Your system presents itself as an HTTP-speaking API. What is themost simple tool on AWS to achieve this with?
A. Route53 Health Checks
B. CloudWatch Health Checks
C. AWS ELB Health Checks
D. EC2 Health Checks
Correct Answer: A
Explanation/Reference:
Explanation:
You can create a health check that will run into perpetuity using Route53, in one API call, which will ping your service via HTTP every 10 or 30 seconds. AmazonRoute 53 must be able to establish a TCP connection with the endpoint within four seconds. In addition, the endpoint must respond with an HTTP status code of200 or greater and less than 400 within two seconds after connecting.
Reference: http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover-determining-health-ofendpoints.html
