Questions 58 to 60

Explanations for questions 58 to 60

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Question 58

An application that you will be deploying in your VPC requires 14 EC2 instances that must be placed on distinct underlying hardware to reduce the impact of the failure of a hardware node. The instances will use varying instance types. What configuration will cater to these requirements taking cost-effectiveness into account?

  1. You cannot control which nodes your instances are placed on.
  2. Use dedicated hosts, and deploy each instance on a dedicated host.
  3. Use a Spread Placement Group across two AZs.
  4. Use a Cluster Placement Group within a single AZ.

Correct Answer: 3

Explanation: A spread placement group is a group of instances that are each placed on distinct underlying hardware. Spread placement groups are recommended for applications that have a small number of critical instances that should be kept separate from each other. Launching instances in a spread placement group reduces the risk of simultaneous failures that might occur when instances share the same underlying hardware.

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