What is data link layer?
Introduction The Data Link Layer is the second layer in the OSI (Open Systems Interconnection) reference model. It acts as a bridge between the physical hardware (Layer 1) and higher-layer software protocols.
What is physical layer?
Introduction The physical layer of the OSI model is the cornerstone of data communication. It handles the raw transmission of data bits through various media, ensuring that the foundation for all network activities is stable …
Presentation layer
Introduction The presentation layer is the layer 6 of the OSI reference model. It is responsible for defining how information is transmitted and presented to the user interface.