A company is deploying an application that processes large quantities of data in parallel. The company plans to use Amazon EC2 instances for the workload. The network architecture must be configurable to prevent groups of nodes from sharing the same underlying hardware. Which networking solution meets these requirements?
Select an option, then click Submit answer.
Reference / correct answer:
Run the EC2 instances in a spread placement group.
Most accepted answer: A. Run the EC2 instances in a spread placement group.
Community votes: A=12, C=2
Selected Answer: A A spread placement group is a group of instances that are each placed on distinct hardware. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html upvoted 12 times
Selected Answer: C C is the correct answer. Configuring the EC2 instances with dedicated tenancy ensures that each instance will run on isolated, single-tenant hardware. This meets the requirement to prevent groups of nodes from sharing underlying hardware. A spread placement group only provides isolation at the Availability Zone level. Instances could still share hardware within an AZ. upvoted 5 times pentium75 2 years, 7 months ago No. C ensures that your EC2 instances run on hardware that is not shared with other customers (!). It is still shared among YOUR instances. upvoted 6 times ...
No. C ensures that your EC2 instances run on hardware that is not shared with other customers (!). It is still shared among YOUR instances. upvoted 6 times
Selected Answer: A Option A: Run the EC2 instances in a spread placement group. Spread Placement Group: This placement group strategy ensures that EC2 instances are distributed across distinct hardware to reduce the risk of correlated failures. Instances in a spread placement group are placed on different underlying hardware, which aligns with the requirement to prevent groups of nodes from sharing the same underlying hardware. This is a good fit for the scenario where you need to ensure high availability and fault tolerance. upvoted 2 times
Selected Answer: A Spread – Strictly places a small group of instances across distinct underlying hardware to reduce correlated failures. upvoted 2 times