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    Guided course · Architecture and Design in .NET

    System Design for .NET Developers: An Interview Guide: back to the course

    Module 3 · Messaging and Reliability · Lesson 11 of 20

    Idempotency, the Outbox Pattern and Exactly-Once Myths

    24 min readTechInterviewNotes Editorial TeamUpdated 14 Oct 2026Save

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    Its text, video and cheat sheet open with Full Access. This course's free lessons open without an account. Start with How to Run a System Design Interview as a .NET Developer.

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