Tag: transport layer

Transport & Application Layers (CCNA Quiz)

Free Cisco CCNA Quiz

Test your Cisco Networking knowledge and skills by practicing this free online Transport & Application Layers Quiz.         You might also be interested in our free Online Quizzes on all IT topics including Cisco CCNA, Cyber Security, Python Programming, Linux & Ethical Hacking: Free Online Quizzes (Best for Cisco CCNA, Huawei HCNA, N+) You can also view free study notes (Cheat sheets) for long term memory: Networkwalks Summary Cheatsheets Follow our Facebook Page & YouTube Channel for more updated Cheatsheets & Quizzes after doing this Transport & Application Layers Quiz:  

Transport Layer of OSI Model (Layer-4)

Transport Layer of OSI Model

Transport Layer is the fourth layer in 7 Layer OSI Model after Network Layer. Similar to Layer-2 and Layer-3, this layer also performs addressing & multiplexing but in different domain through TCP and UDP. OSI Model divides the network communication processes into seven layers in order to simplify it. Each layer performs specific functions to support the layers above it. The seven Layer model starts from Physical till Application Layer & Transport layer is in the middle. The core concept behind Transport layer is the “support of Multitasking”. It allows same computer, browser & internet connection to work on multiple Read More …

OSI Model

OSI-Model

“OSI Model (Open Systems Interconnection Model) is a reference tool and a reference model for data communications in networks”. It was the first conceptual model for standardized communication in computer Network systems.   Why do we need OSI Model? We need OSI Model for solution to our multiple problems; few of them are described here. Firstly, it is a vendor neutral model. Before OSI Model, each vendor had to use its own network model to manufacture network equipment. So, one vendor’s equipment & the network was not compatible with another vendor’s equipment. Clients and buyers were forced to buy all Read More …

TCP/IP Model Study Notes Cheatsheet

TCP/IP

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