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  • Question about Enhanced Networking

  • asad-siddiqui

    December 30, 2021 at 9:52 am

    I got the following question with the below explanations:

    A company that still uses previous generation EC2 instances is currently building an online fashion website which has both development and UAT environments. You deployed the application to an On-Demand m1.small EC2 instance that exists on both environments. While testing the new website, the Operations team noticed performance degradation as they increase network load in the UAT environment.

    In this scenario, how would you mitigate these performance issues in the UAT environment?

    Change the m1.small EC2 instance to a larger instance type.

    Attach an additional ENI to the EC2 instance in the UAT environment.

    Use a Reserved m1.small EC2 instance instead of an On-Demand instance.

    Enable Enhanced Networking.

    The m1.small instance type has a low network performance due to its size. To fix this issue, you can use a larger EC2 instance type such as m1.medium, m1.large or m1.xlarge. Alternatively, you can launch a new EC2 instance type from a Current Generation of EC2 instances and avoid using the ones in the Previous Generation.

    Attaching an additional ENI to the EC2 instance in the UAT environment is incorrect because simply attaching an ENI will not increase the network bandwidth of the instance.

    Using a Reserved m1.small EC2 instance instead of an On-Demand instance is incorrect because a Reserved Instance is basically just an instance purchasing Option and would not affect the network performance.

    Enabling Enhanced Networking is incorrect because the m1.small instance type does not support Enhanced Networking.

    I went to AWS Documentation that clearly states that all instances except T2 can use Enhanced Networking. So I do not know why in this scenario Enabling Enhaced Networking is incorrect? Link

    I would like to see the official documentation saying m1.small cannot use enhanced networking. Will appreciate if there is a reference. Thank you

  • Tutorials-Dojo

    December 31, 2021 at 4:44 pm

    Hi Asad,

    In the provided explanation, we actually added the references that you can use to verify the provided answer. The M1 instance type does NOT support Enhanced Networking based on this reference link from the official AWS website:

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Original Post
0 of 0 posts June 2018