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MGT520 PAST PAPERS
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Second, the inherent delay in providing reliable service may be unacceptable, especially in real time.
applications such as multimedia. For these reasons, both reliable and unreliable communication coexist.
A service is formally specified by a set of primitives (operations) that are available to the user process
Service. These primitives tell the service to take some action or report on the action taken by a peer entity. if
The protocol stack is located in the operating system, as is often the case, primitives are usually system calls.
These calls cause a trap in kernel mode, which then transfers control of the machine to the operating system.
Send the required packet.
The set of primitives available depends on the nature of the service being provided. primitive for
Connection-oriented service differs from connectionless service. As a minimal example of
Service primitives that can be provided to implement a reliable byte stream in a client-server environment,
Consider primitives These primitives can be used as follows. First, the server executes LISTEN to indicate that it is ready.
YOUR FILE WILL BE READY IN 60 SECONDS
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