A SysOps administrator is notified that an Amazon EC2 instance has stopped responding. The AWS Management Console indicates that the system checks are failing. What should the administrator do first to resolve this issue?
A.
Reboot the EC2 instance so it can be launched on a new host.
B.
Stop and then start the EC2 instance so that it can be launched on a new host.
C.
Terminate the EC2 instance and relaunch it.
D.
View the AWS CloudTrail log to investigate what changed on the EC2 instance.
B is correct,
system status check -- stop and restart
instance status check -- reboot
refer: https://acloud.guru/forums/aws-certified-sysops-administrator-associate/discussion/-K9I3MvysRcTvbNJHKLj/status_checks
nonsence
https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/monitoring-system-instance-status-check.html#system-status-checks
system status check - start/stop or terminate
Instance status checks - reboot
Correct Answer: B
System Check Failures: When system checks fail on an EC2 instance, it often indicates an underlying hardware or networking issue on the physical host. Stopping and then starting the instance moves it to a different host, which usually resolves issues caused by hardware problems.
Other Options:
Option A (Reboot the EC2 instance): A reboot does not move the instance to a new host, so it will not resolve issues related to hardware failures.
Option C (Terminate and relaunch the instance): This could resolve the issue but would also result in the loss of any data stored on the instance (unless an AMI is created first). Stopping and starting is a less disruptive first step.
Option D (View the AWS CloudTrail log): CloudTrail logs API actions, but it won’t provide information about hardware or networking issues affecting the instance.
B
If a system status check has failed, you can try one of the following options:
3. For an instance using an Amazon EBS-backed AMI, stop and restart the instance.
4. For an instance using an instance-store backed AMI, terminate the instance and launch a
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/TroubleshootingInstances.html#InitialSteps
https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/Stop_Start.html
"When you stop an instance, the instance shuts down. When you start an instance, the instance is typically migrated to a new underlying host computer"
Correct answer is C.
https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/monitoring-system-instance-status-check.html#system-status-checks
start/stop -For instances backed by Amazon EBS, you can stop and start the instance yourself, which in most cases results in the instance being migrated to a new host. key word - may result in instance being migrated
why no A : rebooting the EC2 instance, is generally not as effective as stopping and starting it, because a reboot doesn't necessarily ensure that the instance will be launched on a new host.
B - https://aws.amazon.com/premiumsupport/knowledge-center/ec2-windows-system-status-check-fail/#:~:text=A%20system%20status%20check%20failure%20indicates%20a%20problem%20with%20the,from%20the%20current%20underlying%20host.
B is correct
https://aws.amazon.com/premiumsupport/knowledge-center/ec2-windows-system-status-check-fail/
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