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DOP-C02 · Question #53

A new zero-day vulnerability was found in OpenSSL requiring the immediate patching of a production web fleet running on Amazon Linux. Currently, OS updates are performed manually on a monthly basis an

The correct answer is C. Use Amazon EC2 Run Command to issue a package update command to all running production. https://aws.amazon.com/blogs/aws/ec2-run-command-is-now-a-cloudwatch-events-target/ EC2 Run Command is part of EC2 Systems Manager. It allows you to operate on collections of EC2 instances and on-premises servers reliably and at scale, in a controlled and selective fashion. You c

Submitted by ricky.ec· Mar 6, 2026Incident & Event Response

Question

A new zero-day vulnerability was found in OpenSSL requiring the immediate patching of a production web fleet running on Amazon Linux. Currently, OS updates are performed manually on a monthly basis and deployed using updates to the production Auto Scaling Group's launch configuration. Which method should a DevOps Engineer use to update packages in-place without downtime?

Options

  • AUse AWS CodePipline and AWS CodeBuild to generate new copies of these packages, and
  • BUse AWS Inspector to run "yum upgrade" on all running production instances, and manually
  • CUse Amazon EC2 Run Command to issue a package update command to all running production
  • DDefine a new AWS OpsWorks layer to match the running production instances, and use a recipe

How the community answered

(28 responses)
  • A
    18% (5)
  • B
    7% (2)
  • C
    71% (20)
  • D
    4% (1)

Explanation

https://aws.amazon.com/blogs/aws/ec2-run-command-is-now-a-cloudwatch-events-target/ EC2 Run Command is part of EC2 Systems Manager. It allows you to operate on collections of EC2 instances and on-premises servers reliably and at scale, in a controlled and selective fashion. You can run scripts, install software, collect metrics and log files, manage patches, and much more, on both Windows and Linux.

Topics

#Systems Manager Run Command#Emergency patching#OS updates#Zero downtime

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