AWS Certified Advanced Networking – Specialty (ANS-C00) — Question 61

A network engineer has configured a private hosted zone using Amazon Route 53. The engineer needs to configure health checks for record sets within the zone that are associated with instances.
How can the engineer meet the requirements?

Answer options

• A. Configure a Route 53 health check to a private IP associated with the instances inside the VPC to be checked.
• B. Configure a Route 53 health check pointing to an Amazon SNS topic that notifies an Amazon CloudWatch alarm when the Amazon EC2 StatusCheckFailed metric fails.
• C. Create a CloudWatch metric that checks the status of the EC2 StatusCheckFailed metric, add an alarm to the metric, and then create a health check that is based on the state of the alarm.
• D. Create a CloudWatch alarm for the StatusCheckFailed metric and choose Recover this instance, selecting a threshold value of 1.

Correct answer: C

Explanation

Option C is correct because it directly links the health check to the status of the CloudWatch alarm, effectively monitoring the health of the EC2 instance. Option A is incorrect as it cannot perform health checks for private IPs in a private hosted zone. Option B does not correctly implement health checks on the record sets, and option D does not provide a health check mechanism but rather a recovery action based on a threshold.