ocr: Figure 1Seven-layer Open Systems Interconnect (OSI) Model OSI MODEL Protocols Protocols E-Mail Peers E-Mail Application, Application DOS Peers DOS NOS Presentation Presentation: NOS Peers NetBIOS Session Session NetBIOS Peers Transport Transport IPX/SPX IPX/SPX TCP/IP Network Peers Network TCP/IP Ethernet Adapter MAC LLC Peers LLC MAC Data Link Adapter Ethernet Token-ring Token-ring Data Link ARCNET ARCNET FDDI FDDI Media Media Peers Physical Physical
