Placement Groups and IAM Roles with EC2

Learn about placement groups, IAM roles, and jump hosts with EC2.

Placement groups

Placement groups are a logical grouping of instances in one of the following configurations:

Cluster placement groups cluster instances into a low-latency group in a single AZ.

  • A cluster placement group is a logical grouping of instances within a single Availability Zone.
  • Cluster placement groups are recommended for applications that benefit from low network latency, high network throughput, or both, and if the majority of the network traffic is between the instances in the group.

The image below gives an overview of the cluster placement group.

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