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TCP/IP Model-OSI Model (Physical Layer (Encapsulation BITS, Cable Media,…
TCP/IP Model-OSI Model
Physical Layer
Encapsulation BITS
Cable Media, NIC, Hubs
Definition: Provides services for the transmission of bits over the cable media
Data LInk Layer
Two Sub Layers: MAC Layer and LLC Layer
Encapsulation Frames
Switches manage the network transmissions based on MAC Address (MAC Address Table)
Definition: Protocols and function to help transmit data between network links
Network Layer
Routers and Layer 3 Switches
Encapsulation PACKETS
Definition: Best path Determination
Protocol: IP (Internet Protocol)
Transport Layer
Encapsulation SEGMENTS
Protocols: TCP/UDP
Definition: Provides Services for end-to-end transmission and determines if it is reliable or unreliable based on Protocols used.
Session Layer
Encapsulation: DATA
Definition: Establishes a session and exchanges information with both the Presentation and Transport Layer
Presentation Layer
Definition: Provides Services to the Application Layer in the proper format of the message (ie JPEG)
Application Layer
Definition: Includes all the services of the users Application, including interaction with the end user
Protocols: HTTP, HTTPS, SMTP, POP3, IMAP, FTP, TFTP, DHCP, DNS, BOOTP
Link Layer
Ethernet Layer: encompasses the physical and data link layer of the OSI Model
Internet Layer
Is the Network Layer of the OSI Model
Transport Layer
Transport Layer is the Layer four of the OSI Model
Application Layer
The Application is all three of the DATA Layer of the OSI Model (Application, Pretension and Session Layers)
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