The Open Systems Interconnection (OSI) model describes seven layers that computer … See more

The OSI model consists of seven abstraction layers arranged in a top-down order: 1. Physical Layer 2. Data Link Layer 3. Network Layer 4. Transport Layer 5. Session La… See more

The lowest layer of the OSI reference model is the physical layer. It is responsible for the actual physical connection between the devices. The physical layer contains informatio… See more

The data link layer is responsible for the node-to-node delivery of the message. The main function of this layer is to make sure data transfer is error-free from one node to another, ov… See more

The network layer works for the transmission of data from one host to the other located in different networks. It also takes care of packet routing i.e. selection of the shortes… See more

The transport layer provides services to the application layer and takes services from the network layer. The data in the transport layer is referred to as Segments. It is responsibl… See more