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    Guided course · Cloud and Networking for .NET

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

    Module 1 · Network Foundations · Lesson 3 of 18

    DNS for .NET Developers: Records, TTL, Caching and the Stale-Connection Problem

    20 min readTechInterviewNotes Editorial TeamUpdated 14 Oct 2026Save

    This lesson comes with Full Access

    Its text, video and cheat sheet open with Full Access. This course's free lessons open without an account. Start with How a Request Crosses the Network: OSI, TCP/IP, IP Addresses and Ports for .NET Developers.

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