The lower layers may drop packets, but the transport layer performs a sequence check on the data and ensures that if a 12MB file is sent, the full 12MB is received. "OSI transport services ...

The physical layer is the lowest layer (layer 1) of the OSI Reference Model. The OSI model was discussed in Chapter 2. What does the physical layer do? Before sending data on the network, the physical ...

The big challenge facing the Internet of Things (IoT) is the wide variety of devices expected to work together. One solution ...

The Open Systems Interconnect (OSI) seven-layer reference model is a framework for data communications. As seen in previous chapters, security can be breached by exploiting the flaws and weaknesses of ...

and the layered approach lets different protocols be swapped in and out to accommodate different network architectures. For more details about each layer, see OSI model. THIS DEFINITION IS FOR ...