DynamoDB Global Table Decision Scenario
A scenario-driven decision lab: evaluate DynamoDB Global Tables against alternative resilience strategies using RPO, RTO, and cost analysis for three realistic workload profiles.
Lab Overview
In this scenario-only lab you will evaluate whether DynamoDB Global Tables are the right choice for three distinct workload profiles. No DynamoDB tables are created -- this lab focuses on analysis and decision-making.
You will:
- Read a fictional company scenario describing multi-region application requirements
- Analyze Global Tables concepts: eventual consistency, conflict resolution, replication latency, and throughput considerations
- Evaluate three workload profiles (real-time inventory, user sessions, log aggregation) against RPO and RTO requirements
- Build a structured decision matrix in markdown table format with clear justifications
- Calculate cost estimates for Global Tables versus alternatives (on-demand backup, PITR, Lambda-based replication)
- Document architecture tradeoffs including write conflicts and region management
- Write a final recommendation report with chosen approach, RPO/RTO numbers, estimated monthly cost, and operational considerations
Runs on a single AWS workstation. No multi-region DynamoDB resources are provisioned.
What You'll Learn
Explain DynamoDB Global Tables concepts including eventual consistency, conflict resolution, and replication latency
Evaluate workload RPO and RTO requirements to determine whether Global Tables are appropriate
Compare cost profiles of Global Tables versus on-demand backup, PITR, and Lambda-based replication
Document architecture tradeoffs including write conflicts, region additions/removals, and operational overhead
Produce a structured recommendation report with clear reasoning, RPO/RTO numbers, and cost estimates
Prerequisites
aws-devops-cli-operations-baseline
basic-dynamodb-knowledge
Technologies Covered
Part of a Course
This lab is part of the AWS Certified DevOps Engineer - Professional (DOP-C02) course
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