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AWS AWS Well-Architected Framework and Design Principles 5

A team holds 'pre-mortem' exercises to find potential failure sources before launch.
Which Operational Excellence design principle is this?

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. aws.amazon.com — Exam format, fees, registration, test dates, renewal, test delivery, eligibility, score validity, retake policy, passing score · verified Oct 2026