DOP-C02 · Question #498
A company runs a development environment website and database on an Amazon EC2 instance that uses Amazon Elastic Block Store (Amazon EBS) storage. The company wants to make the instance more…
The correct answer is C. Create an Amazon CloudWatch alarm for the StatusCheckFailed_System metric. Add an EC2. A CloudWatch alarm on the system status check failure metric can detect underlying host or network connectivity problems that AWS surfaces through EC2 status checks. Configuring the alarm to perform the EC2 recover action automatically triggers automated instance recovery…
Question
A company runs a development environment website and database on an Amazon EC2 instance that uses Amazon Elastic Block Store (Amazon EBS) storage. The company wants to make the instance more resilient to underlying hardware issues. The company wants to automatically recover the EC2 instance if AWS determines the instance has lost network connectivity. Which solution will meet these requirements?
Options
- AAdd the EC2 instance to an Auto Scaling group. Set the minimum, maximum, and desired
- BAdd the EC2 instance to an Auto Scaling group. Configure a lifecycle hook to detach the EBS
- CCreate an Amazon CloudWatch alarm for the StatusCheckFailed_System metric. Add an EC2
- DCreate an Amazon CloudWatch alarm for the NetworkOut metric. Add an EC2 action to recover
How the community answered
(24 responses)- A4% (1)
- B4% (1)
- C92% (22)
Explanation
A CloudWatch alarm on the system status check failure metric can detect underlying host or network connectivity problems that AWS surfaces through EC2 status checks. Configuring the alarm to perform the EC2 recover action automatically triggers automated instance recovery, which restores the instance on healthy underlying hardware while keeping the instance configuration and attached EBS volumes intact.
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