CompTIA NetPlus N1000-081-2-1 OSI and TCP/IP Models PDF
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This document provides an overview of the OSI and TCP/IP network models, describing their different layers and functionalities. It explains the traditional and new TCP/IP models and the key differences between them. Useful for people studying or working in the networking field.
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Open Systems Interconnection Model (OSI) o Developed by the International Organization for Standardization o Layered framework describing network functions TCP/IP Model o Named after two important protocols o Used as the “Internet” model o Developed by the Department of Defense (DARPA) o...
Open Systems Interconnection Model (OSI) o Developed by the International Organization for Standardization o Layered framework describing network functions TCP/IP Model o Named after two important protocols o Used as the “Internet” model o Developed by the Department of Defense (DARPA) o A suite of protocols o Developed before the OSI model Traditional TCP/IP Model Applicati on(4) Transport (Host-to- Host) (3) Internet (2) Network Interface (1) Traditional TCP/IP Model Provides application network access, Applicati SMTP, DNS, HTTP, encryption, on(4) FTP, RIP compression, formatting Transport (Host-to- Host) (3) Internet (2) Network Interface (1) Traditional TCP/IP Model Applicati on(4) Provides end-to-end Transport data integrity, reliable (Host-to- TCP, UDP communication Host) (3) Internet (2) Network Interface (1) Traditional TCP/IP Model Applicati on(4) Transport (Host-to- Host) (3) IP addressing, routing Internet IP, ICMP, NAT (2) Network Interface (1) Traditional TCP/IP Model Applicati on(4) Transport (Host-to- Host) (3) Internet (2) Electrical and Ethernet, mechanical Network Interface 802.11, characteristics, media access, transmits data (1) Fiber, on same network Copper New TCP/IP Model Applicati on(4) Transport (Host-to- Host) (3) Internet (2) Network Interface (1) New TCP/IP Model Applicati on(5) Transport (Host-to- Host) (4) Internet (3) Media access, frame Data Link Ethernet, CSMA/CD error-checking (2) Physical Electrical and (1) Copper, fiber, BASE mechanical standards characteristics OSI Model vs. Traditional TCP/IP Model Applicatio n Applicati on(4) Presentati on Transport Session (Host-to- Host) Transport (3) Internet (2) Network Network Data Link Interface Physical (1) OSI Model vs. New TCP/IP Model Applicatio n Applicati on(5) Presentati on Transport Session (Host-to- Host) Transport (4) Internet (3) Network Data Link Network (2) Data Link Interface Physical Physical (1) (1)
