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Home Forums AWS AWS Certified Cloud Practitioner Incorrect answer/explanation on AWS Glacier vs Glacier Deep archive

  • Incorrect answer/explanation on AWS Glacier vs Glacier Deep archive

  • RRB

    Member
    January 27, 2021 at 2:04 am

    “You have a large number of log files that will be archived in AWS for a long time and should have a retrieval time of 12 hours or less. Which service is the most cost-effective storage class for this purpose?”

    The answer for this question is supposed to be AWS Glacier because retrieval time of 12 hours or LESS. For some reason, review mode practice tests keep giving ‘Deep Archive’ as the answer.

    Today, I was going through timed mode test, where this question appeared again. This time the test evaluating correctly by highlighting ‘AWS Glacier’ as correct answer but still the explanation section says ‘Deep archive’ is the correct answer.

    Answer explanation:

    S3 Glacier Deep Archive can also be used for backup and disaster recovery use cases, and is a cost-effective and easy-to-manage alternative to magnetic tape systems, whether they are on-premises libraries or off-premises services. S3 Glacier Deep Archive complements Amazon S3 Glacier, which is ideal for archives where data is regularly retrieved and some of the data may be needed in minutes.

    All objects stored in S3 Glacier Deep Archive are replicated and stored across at least three geographically-dispersed Availability Zones, protected by 99.999999999% of durability, and can be restored within 12 hours.

    Hence, the correct answer is Amazon S3 Glacier Deep Archive.”

  • Carlo-TutorialsDojo

    Member
    January 27, 2021 at 11:53 pm

    Hello RRB,

    Thanks for bringing up this issue to our attention. We will investigate this problem and fix the question accordingly.

    Regards,

    Carlo

  • Carlo-TutorialsDojo

    Member
    January 28, 2021 at 10:53 am

    Hello RRB,

    The correct answer for this question is Amazon S3 Glacier Deep. It’s working fine and showing the right answer on my end.

    • RRB

      Member
      January 28, 2021 at 2:01 pm

      Thank you. isn’t Glacier the one with < 12 hours retrieval time? Glacier Deep Archive takes 12-48 hrs. retrieval time for ‘large number of files’?

      • Carlo-TutorialsDojo

        Member
        January 29, 2021 at 12:47 am

        Hello RRB,

        Objects stored in Amazon Glacier Deep Archive can be restored within 12 hours or less. Optionally, you can also retrieve objects in bulk (typically petabytes of data) within 48 hours.

        You can refer to this documentation for more details.

        Both Amazon Glacier and Glacier Deep Archive can retrieve objects within 12 hours or less but the latter is more cost-effective, hence, the correct answer.

        Let me know if this helps.

        Regards,

        Carlo

        • RRB

          Member
          January 29, 2021 at 1:18 am

          Thank you.

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