intermediate~2h
EC2 Placement Groups, Tenancy, and Purchase Options
Learn how placement groups control physical instance placement for network performance or fault isolation, how tenancy options trade cost against compliance isolation, and how purchase options turn EC2 pricing into a financial decision rather than a technical afterthought.
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Subtopics
🎓 Learning objectives
- •Distinguish cluster, spread, and partition placement groups by the specific problem each solves
- •Choose the right tenancy model (shared, dedicated instance, dedicated host) for a given compliance or licensing requirement
- •Compare On-Demand, Reserved Instances, Savings Plans, and Spot to pick the financially correct purchase option per workload
- •Explain the physical and billing tradeoffs behind each placement and tenancy decision
- •Avoid common mistakes when combining placement groups with Auto Scaling or multi-AZ designs
- •Read an EC2 bill and placement strategy critically enough to justify the choice in a design review
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Related concepts
ec2-fundamentalsauto-scaling-load-balancingelastic-load-balancing-deep-diveec2-instance-types-and-sizing