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					  Network Relationships to the OSI Model
OSI       OSI
Model     Model Name   Pneumonic Equipment   Equipment   Data   Protocols   Words to   TCP/IP Model
Layer                                        Purpose                        Remember
Layer 7                    A                                                Browsers   Application

                                                                                       Application
Layer 6                 P                                D

Layer 5                 S
                                                                                       Application


Layer 4                    T                             S                             Transport




Layer 3                    N                             P                             Internet



Layer 2                    D                                                           Network Access

                                                         F



Layer 1                P                                 B                             Network Access
  Network Relationships to the OSI Model Answers

OSI       OSI
Model     Model Name     Pneumonic Equipment         Equipment            Data      Protocols    Words to        TCP/IP Model
Layer                                                Purpose                                     Remember
Layer 7   Application      All                       Regular Computer               Redirector,  Browsers        Application
                                                     or                             FTP, Telnet,
                                                     A Special Gateway.             SMTP,        Common          Application
Layer 6   Presentation    People                     Used to combine      Data      SNMP,        Data Format
                                      Computer       networks using                 Netware
                                                     different                      Core,
Layer 5   Session         Seem                       communication                  NFS, SQL,    Dialogues and
                                                     protocols                      RPC, X-Win   Conversations   Application
                                                                                                 Quality of
Layer 4   Transport        To         Computer                            Segment   TCP and      Service, and    Transport
                                                                                    UDP          Reliability
                                                     Segment Network
                                                     into Smaller                   Routable     Path
                                                                                    Protocols.   Selection,
Layer 3   Network         Need        Router         Broadcast Domains Packet       (IP, IPX,    Routing, and
                                                                                                                 Internet
                                                                                    AppleTalk)   Addressing


Layer 2   Data Link        Data       Bridge (2      Segment Network                NDIS, ODI,   Frames and      Network Access
                                                                                    MAC          Media Access
             a) LLC                   Ports) or      into Smaller                   Address,     Control (MAC)
             b) MAC                   Switch         Collision Domains    Frame     Ether Talk
                                      (Multi-port)
                                      and NIC
                                      Repeater (2    One Collision AND
Layer 1   Physical       Processing   Ports), Hub    One Broadcast     Bit          Physical     Signals and     Network Access
                                                                                                 Media
                                      (Multi-        Domain
                                      port),
                                      Cabling

				
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