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Exam AWS-SysOps topic 1 question 811 discussion

Exam question from Amazon's AWS-SysOps
Question #: 811
Topic #: 1
[All AWS-SysOps Questions]

A company has received a notification in its AWS Personal Health Dashboard that one of its Amazon EBS-backed Amazon EC2 instances is on hardware that is scheduled for maintenance. The instance runs a critical production workload that must be available during normal business hours.
Which steps will ensure that the instance maintenance does not produce an outage?

  • A. Configure an Amazon Lambda function to automatically start the instance if it is stopped.
  • B. Create an Amazon Machine Image (AMI) of the instance and use the AMI to launch a new instance once the existing instance is retired.
  • C. Enable termination protection on the EC2 instance.
  • D. Stop and start the EC2 instance during a maintenance window outside of normal business hours.
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
by nicat at May 10, 2020, 4:38 a.m.
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kung07
Highly Voted 2 years, 9 months ago
D makes more sense Starting the stopped instance migrates it to new hardware refer to https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-retirement.html
upvoted 10 times
MegatonN
2 years, 9 months ago
kung07: I can't agree with you https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/Stop_Start.html In most cases, the instance is migrated to a new underlying host computer when it's started (though in some cases, it remains on the current host).
upvoted 1 times
kinnu_tech
2 years, 8 months ago
it doesn't matter if the comes on the new host, as long as the application is up and running. Since it is an AWS hardware issue, if we don't start and stop the application will be down.
upvoted 1 times
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Golddust
2 years, 9 months ago
Agreed that D make sense. Another link for confirmation: https://aws.amazon.com/premiumsupport/knowledge-center/ec2-instance-retirement/
upvoted 1 times
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nicat
Highly Voted 2 years, 9 months ago
D. Stop and start the EC2 instance during a maintenance window outside of normal business hours.
upvoted 9 times
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albert_kuo
Most Recent 11 months, 2 weeks ago
Selected Answer: D
By stopping and starting the EC2 instance during a maintenance window, you allow AWS to perform maintenance tasks and potentially move the instance to different underlying hardware that is not scheduled for maintenance. This action helps to minimize the impact on the production workload and reduces the risk of unplanned downtime during maintenance.
upvoted 1 times
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gulu73
1 year, 5 months ago
Selected Answer: D
D is the answer
upvoted 1 times
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Bunchie
1 year, 11 months ago
D is correct. Found in the practice exam Usually, Amazon EC2 maintenance is a live update to minimize customer impact. Sometimes, however, a live update is not possible. In these cases, a scheduled maintenance event is needed. When an EBS-backed instance that is scheduled for a maintenance event is stopped and restarted, AWS will restart the instance on different hardware that does not require maintenance
upvoted 1 times
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RicardoD
2 years, 8 months ago
D is the answer Doing a Stop/Start will bring up the instance in a new underlying hardware.
upvoted 1 times
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abhishek_m_86
2 years, 8 months ago
D. Stop and start the EC2 instance during a maintenance window outside of normal business hours. Seems correct https://aws.amazon.com/premiumsupport/knowledge-center/ec2-instance-retirement/
upvoted 2 times
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jackdryan
2 years, 8 months ago
I'll go with D
upvoted 1 times
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MFDOOM
2 years, 8 months ago
D. Stop and start the EC2 instance during a maintenance window outside of normal business hours.
upvoted 1 times
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MegatonN
2 years, 8 months ago
I propose: B D: from AWS doc => In most cases, the instance is migrated to a new underlying host computer when it's started (though in some cases, it remains on the current host). A: Lambda can't start the not available ec2 instance C: termination protection is for a not desired action (error)
upvoted 2 times
MegatonN
2 years, 8 months ago
Wrong proposition! D Stop and start your instance If your instance has an Amazon Elastic Block Store (Amazon EBS) volume as its root device, then complete maintenance by stopping and starting your instance. A stop and start migrates your instance to a new underlying host. https://aws.amazon.com/premiumsupport/knowledge-center/ec2-scheduled-maintenance-action/
upvoted 4 times
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gretch
2 years, 9 months ago
D https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/monitoring-instances-status-check_sched.html#schedevents_actions_maintenance
upvoted 1 times
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