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Explain services of Application Layer.
Application Layer:
As the highest layer within the OSI reference model, the application layer gives services to the users of OSI environment. The layer gives services as follows:
a. Electronic mail or message handling service
b. Directory services
c. Cost allocation
d. Determination of quality of service
e. File transfer and management
f. Editors and terminal support services
g. Telematic services like videotext.
Explain all the categories that are served by Common Control switching. Common Control Switching System: It is a functional block diagram of a common control switching system i
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LAN is a privately - owned computer networks confined to small geographical area, like a factory or an office widely used to connect office PCs to share resources and information.
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