7 Layer / OSI Layer

  1. Physical
    Electrical signals and cabling
  2. Data Link
    Transmits packets from node to node based on station address
  3. Network
    Route data to different LANs and WANs based on network address
  4. Transport
    Ensures delivery of entire file or message.
  5. Session
    Start or stop session, maintains order (NetBIOS, SQL, ZIP, ect)
  6. Presentation
    Encryption, data conversion. (ASCII, MPEG, MIDI, ect)
  7. Application
    Type of communication (FTP, SNMP, HTTP, telnet, DHCP, ect)
Model referensi ini merupakan modal dasar untuk memahami cara network bekerja.

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