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Capture The Flag

UDP Packet Analysis – DNS Response

COURSE LESSON

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Network Layer Structures and Operations

In this session, you'll examine a DNS response packet using Wireshark. You’ll understand how DNS works over UDP and learn to interpret answers, TTLs, and domain resolution behavior.

Key topics:

  • DNS over UDP behavior

  • Query/response format

  • DNS flags and sections

  • TTL and caching implications