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Home Forums AWS AWS Certified Solutions Architect Associate Question # 14; Category: CSAA – Design Cost-Optimized Architectures

  • Question # 14; Category: CSAA – Design Cost-Optimized Architectures

  • Denzil77777

    Member
    May 27, 2024 at 4:44 pm

    Good day to you,

    I am a bit confused here.

    A solutions architect is managing an application that runs on a Windows EC2 instance with an attached Amazon FSx for Windows File Server. To save cost, management has decided to stop the instance during off-hours and restart it only when needed. It has been observed that the application takes several minutes to become fully operational, which impacts productivity.

    How can the solutions architect speed up the instance’s loading time without driving the cost up?

    (1) Migrate the application to an EC2 instance with hibernation enabled.

    (2) Disable the Instance Metadata Service to reduce the things that need to be loaded at startup.

    (3) Migrate the application to a Linux-based EC2 instance.

    (4) Enable the hibernation mode on the EC2 instance.

    The correct answer is: Migrate the application to an EC2 instance with hibernation enabled.

    Why is the (4) is incorrect?

    I feel this question and answer need to be updated, owing to the fact; https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/hibernating-prerequisites.html

    You must use an HVM AMI that supports hibernation. The following AMIs support hibernation:

    <awsui-expandable-section variant=”container” header=”Linux AMIs” expanded=”false”>

    Linux AMIs

    </awsui-expandable-section><awsui-expandable-section variant=”container” header=”Windows AMIs” expanded=”false”></awsui-expandable-section>

    Windows AMIs

    • Windows Server 2022 AMI released 2023.09.13 or later

    • Windows Server 2019 AMI released 2019.09.11 or later

    • Windows Server 2016 AMI released 2019.09.11 or later

    • Windows Server 2012 R2 AMI released 2019.09.11 or later

    • Windows Server 2012 AMI released 2019.09.11 or later


    By the way, when was the last time these questions were updated?

    Kind Regards,

    Denzil

  • Neil-TutorialsDojo

    Member
    May 29, 2024 at 12:27 pm

    Hello Denzil,

    Good day sir!

    Thank you for posting here.

    “You can’t enable hibernation on an existing instance, whether it is running or stopped. You must enable hibernation when you launch the instance.”-
    (https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/hibernating-prerequisites.htm | pls see attached image too. )

    Given this constraint, enabling hibernation mode on the existing Windows EC2 instance with attached Amazon FSx for Windows File Server is not a viable option in this scenario.

    To speed up the instance’s loading time without driving up the cost, the best option would be: Migrate the application to an EC2 instance with hibernation enabled.
    As for your other question, rest assured that we always update our content up to date.
    I hope this clarifies your question.
    Thanks.

    Regards,
    Neil @ tutorials dojo

  • Denzil77777

    Member
    May 29, 2024 at 9:45 pm

    Good day to you, Neil,

    Thank you for that answer in relation to updates. I understand DOJO updates, do you have visibility for the day updated date?

    Kind Regards,

    Denzil

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