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A2.1 Network fundamentalsA2.1.3

Function of network devices

Describe the function of network devices

SL + HL≈ 50 minCommand term: DescribePremium

In this lesson

  • The function of gateways, hardware firewalls, modems, network interface cards, routers, switches and wireless access points
  • The difference between MAC addresses and IP addresses, and which devices use each
  • How the devices map to the layers of the TCP/IP model

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What's inside

  1. LearnTwo kinds of address
  2. LabA school network
  3. LabHow a switch learns
  4. LearnDevices and the TCP/IP layers
  5. CheckName the device
  6. CheckQuick check
  7. ExamWorked exam answer
  8. ReviewMistakes examiners see
  9. Exam practiceExam-style questions

Ends with 5 exam-style questions worth 12 marks, with a self-marking markscheme.