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Exam AWS Certified Security - Specialty SCS-C02 topic 1 question 61 discussion

Exam question from Amazon's AWS Certified Security - Specialty SCS-C02
Question #: 61
Topic #: 1
[All AWS Certified Security - Specialty SCS-C02 Questions]

A company accidentally deleted the private key for an Amazon Elastic Block Store (Amazon EBS)-backed Amazon EC2 instance. A security engineer needs to regain access to the instance.
Which combination of steps will meet this requirement? (Choose two.)

  • A. Stop the instance. Detach the root volume. Generate a new key pair.
  • B. Keep the instance running. Detach the root volume. Generate a new key pair.
  • C. When the volume is detached from the original instance, attach the volume to another instance as a data volume. Modify the authorized_keys file with a new public key. Move the volume back to the original instance. Start the instance.
  • D. When the volume is detached from the original instance, attach the volume to another instance as a data volume. Modify the authorized_keys file with a new private key. Move the volume back to the original instance. Start the instance.
  • E. When the volume is detached from the original instance, attach the volume to another instance as a data volume. Modify the authorized_keys file with a new public key. Move the volume back to the original instance that is running.
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Suggested Answer: AC 🗳️
by 100fold at Oct. 19, 2023, 2:28 a.m.
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100fold
Highly Voted 1 year ago
Selected Answer: AC
Answer AC https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/TroubleshootingInstancesConnecting.html#replacing-lost-key-pair
upvoted 10 times
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Raphaello
Most Recent 8 months, 3 weeks ago
Selected Answer: AC
AC are the correct answers. There are other ways to add/replace pub key into "authorized_keys" file without stopping the instance, but within the context of this scenario, AC are good. Remember, "authorized_keys" file resides on the root volume. You cannot keep the instance running without the root volume.
upvoted 3 times
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jeff001
11 months, 1 week ago
Selected Answer: AC
A & C. Stop the instance, detach its root volume and attach it to another instance as a data volume, modify the authorized_keys file with a new public key, move the volume back to the original instance, and restart the instance
upvoted 2 times
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352ae9a
11 months, 2 weeks ago
Answer AC
upvoted 2 times
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