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Exam AWS DevOps Engineer Professional All Questions

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Exam AWS DevOps Engineer Professional topic 1 question 117 discussion

Exam question from Amazon's AWS DevOps Engineer Professional
Question #: 117
Topic #: 1
[All AWS DevOps Engineer Professional Questions]

A company wants to use a grid system for proprietary enterprise in-memory data store on top of AWS. The system can run in multiple server nodes in any Linux-based distribution. The system must be able to reconfigure the entire cluster every time a node is added or removed. When adding or removing nodes, an /etc/cluster/nodes.config file must be updated listing the IP addresses of the current node member of that cluster.

The company wants to automate the task of adding new nodes to a cluster.

What can a DevOps engineer do to meet these requirements?

  • A. Use AWS OpsWorks Stacks to layer the server nodes of that cluster. Create a Chief recipe that populates the content of the /etc/cluster/nodes.config file and restarts the service by using the current members of the layers. Assign that recipe to the Configure lifecycle event.
  • B. Put the file nodes.config in version control. Create an AWS CodeDeploy deployment configuration and deployment group based on an Amazon EC2 tag value for the cluster nodes. When adding a new node to the cluster, update the file with all tagged instances, and make a commit in version control. Deploy the new file and restart the services.
  • C. Create an Amazon S3 bucket and upload a version of the /etc/cluster/nodes.config file. Create a crontab script that will poll for that S3 file and download it frequently. Use a process manager, such as Monit or systemd, to restart the cluster services when it detects that the new file was modified. When adding a node to the cluster, edit the file’s most recent members. Upload the new file to the S3 bucket.
  • D. Create a user data script that lists all members of the current security group of the cluster and automatically updates the /etc/cluster/nodes.config file whenever a new instance is added to the cluster.
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Suggested Answer: A 🗳️
by saggy4 at Dec. 28, 2022, 6:06 a.m.
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saggy4
Highly Voted 2 years, 4 months ago
Selected Answer: A
OPSWork's Configure Lifecycle event runs on all the nodes.
upvoted 5 times
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easytoo
Most Recent 2 years, 1 month ago
It's B.
upvoted 1 times
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Piccaso
2 years, 3 months ago
Selected Answer: A
A looks more automatic.
upvoted 1 times
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Bulti
2 years, 3 months ago
Selected Answer: A
A is correct. OpsWork is the right DevOps tool. Not B because using CodeDeploy here to reconfigure the cluster when new nodes are added doesn't make sense. It's not a deployment function. It is an Infrastructure provisioning function.
upvoted 4 times
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strike3test
2 years, 4 months ago
question discussed at below link with A as possible answer https://www.examtopics.com/discussions/amazon/view/3418-exam-aws-devops-engineer-professional-topic-1-question-4/
upvoted 4 times
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