Ubicomp is an abbreviation for the term "ubiquitous computing." Ubiquitous computing is an idea related to expanding an interface to make it seem "pervasive" in a given environment. Ubicomp is also the name of an annual conference on ubiquitous computing.
The transport layer is the layer in the open system interconnection (OSI) model responsible for end-to-end communication over a network. It provides logical communication between application processes running on different hosts within a layered architecture of protocols and other network components.
The transport layer is also responsible for the management of error correction, providing quality and reliability to the end user. This layer enables the host to send and receive error corrected data, packets or messages over a network and is the network component that allows multiplexing.
In the OSI model, the transport layer is the fourth layer of this network structure.
Transport layers work transparently within the layers above to deliver and receive data without errors. The send side breaks application messages into segments and passes them on to the network layer. The receiving side then reassembles segments into messages and passes them to the application layer.
The transport layer can provide some or all of the following services:
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