OSI layers

Network+ Preparation Series: All about seven layers of the OSI model

Data link layer, Network+, OSI layers, OSI model

Introduction To provide every item a common reference point, the International Organization for Standardization (ISO) established a framework into which the key network hardware and software components and protocols could be put. This framework, known as Open Systems Interconnection (OSI), is a seven-layer architecture that allows components and their functions to be linked as well

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CEH Preparation Series: An overview of OSI and TCP/IP architecture

Network+ Preparation Series: All about seven layers of the OSI model