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A2.1 Network fundamentalsA2.1.4

Network protocols for transport and application

Describe the network protocols used for transport and application

SL + HL≈ 50 minCommand term: DescribePremium

In this lesson

  • What a protocol is, and the difference between transport and application protocols
  • TCP and UDP: how they deliver data and when each is used
  • HTTP, HTTPS and DHCP: what they do and how they work

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What's inside

  1. LearnWhat a protocol is
  2. LearnTCP and UDP
  3. LabTCP and UDP on a lossy network
  4. CheckTCP or UDP?
  5. LearnHTTP and HTTPS
  6. CheckHTTP status codes
  7. LearnDHCP
  8. CheckOrder the steps
  9. ExamWorked exam answer
  10. ReviewMistakes examiners see
  11. Exam practiceExam-style questions

Ends with 5 exam-style questions worth 14 marks, with a self-marking markscheme.