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OSI Model

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johnrunge316's version from 2016-03-15 15:51

Section 1

Question Answer
Application 7Interacts with application programs that incorporate a communication component such as your Internet browser and email
Presentation 6Accepts and structures the messages for the application
Session 5Provides the control functions necessary to establish, manage, and terminate the connections
Transport 4Is concerned with message integrity between source and destination
Network 3Accepts outgoing messages and combines messages or segments into packets, adding a header that includes routing information
Data link 2Handles error recovery, flow control (synchronization), and sequencing
Physical 1Provides the electrical and mechanical connection to the network
memorize

Section 2

Question Answer
ApplicationHTTP, FTP, SMTP
PresentationASCII, JPEG
SessionNFS, SQL
TransportTCP, UDP
NetworkIP, IPX
Data linkMAC addresses
PhysicalNICs, twisted-pair cable, fiber
memorize

Section 3

Question Answer
Application7
Presentation6
Session5
Transport4
Network3
Data link2
Physical1
memorize

Section 4

Question Answer
Layer 1Physical
Layer 2Data link
Layer 3Network
Layer 4Transport
Layer 5Session
Layer 6Presentation
Layer 7Application
memorize