Open System Interconnection (OSI) is a reference model that specifies how information from one computer's software application passes through a physical media to another computer's software application. The OSI is made up of seven levels, each of which performs a different network function.
The OSI reference model's goal is to help technology suppliers and developers construct interoperable digital communications goods and software programmes by providing a clear framework that explains the capabilities of a networking or telecommunications system in use.
Physical Layer (Layer 1)
Data Link Layer (DLL) (Layer 2)
Network Layer (Layer 3)
Transport Layer (Layer 4)
Session Layer (Layer 5)
Presentation Layer (Layer 6)
Application Layer (Layer 7)
It clearly distinguishes between services, interfaces, and protocols. As a result, it is adaptable. Depending on the nature of the network, each layer's protocols can be easily modified. Both connection-oriented and connectionless services are supported.
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Rashid Khan
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Great learning experience about the networking concepts..
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Best teacher
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Mohammad Koushar
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This course is very helpful for learner specially I get very benefit of this course. well-done keep it up.
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Mohammad tayyeb
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networking course is very very helpful and very easiest for understanding
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Ranga
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Very easily understandable. Please also make CCNP , CCIE and CCArch videos available.
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Anurag Nigam
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The method of teaching is very simple and easy to understand,all the important topics are defined very well.I have cleared my all doubts throughout the course study.
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Sumit Pakhira
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good
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Vivek Kumar basant
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Sir cirtificate download ni ho rha error sir I'm course complete 💯✅ issue this cirtificate plz help me sir
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MASUM ANSARI
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Dear Sir,
I have seen all the videos and it is complete but when I am applying for the certificate the error is coming. So please solve this problem as soon as possible.
Ranjeet Kumar
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Nice Content Provide LearnVern
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