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In computer network programming, the application layer is an abstraction layer reserved for communications protocols and methods designed for process-to-process communications across an IP network. Application layer protocols use the underlying transport layer protocols to establish host-to-host connections for network services.
Network services are applications hosted by servers on a computer network, to provide some functionality for members or users of the network, or to help the network itself to operate. The World Wide Web, E-mail, [72] printing and network file sharing are examples of well-known network services.
A service network can also be defined as a collection of people and information brought together on the internet to provide a specific service or achieve a common business objective. It is an evolving extension of service systems and applies Enterprise 2.0 technologies, also known as enterprise social software , to enable corporations to ...
Convergence is about services and about new ways of doing business and interacting with society. The basic type of network convergence is the combination and connection across platforms and networks, which allows several types of networks to connect within certain common standards and protocols.
In computing, a directory service or name service maps the names of network resources to their respective network addresses.It is a shared information infrastructure for locating, managing, administering and organizing everyday items and network resources, which can include volumes, folders, files, printers, users, groups, devices, telephone numbers and other objects.
Differentiated services code point (DSCP) markings use the first 6 bits in the ToS field (now renamed as the DS field) of the IP(v4) packet header. Early work used the integrated services (IntServ) philosophy of reserving network resources. In this model, applications used RSVP to request and reserve resources through a network.
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Network-as-a-Service(NaaS) is a term used to describe the provision of computer networking technology to an organisation as an integrated service.It is related to terms like Infrastructure as a Service (IaaS), Platform as a Service (PaaS), Software as a Service (SaaS), and Software-Defined Networking (SDN).