Marketing Department To The Marketing Group

By Author: jack jone
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The binding process can be used throughout the OSI layers to link one protocol stack to another. The device driver (which implements the Data-Link layer) is bound to the network interface card (which implements the Physical layer). TCP/IP can be bound to the device driver, and the NWLink Session layer can be bound to the device driver.

It’s important to understand the differences between them because different Windows Server 2008 services use both types.

Connectionless Protocols

It might seem odd to talk about a connectionless protocol for networks, but you use at least two of them just about every day: radio and television. Connectionless systems assume that all data will get through, so the protocol doesn’t guarantee delivery comptia security certification
or correct packet ordering. Think of shouting a message out of your window to someone walking by outside—there’s no guarantee that they’ll hear you, but it’s quick and easy. These optimistic assumptions mean that there’s no protocol overhead spent on these activities, so connectionless protocols ...
... tend to be fast. The User Datagram Protocol (UDP), which is part of the IP protocol suite, is an example of a connectionless Internet transport protocol. In fact, IP itself is connectionless, relying on upper-layer protocols such as TCP to provide the connection. The Domain Name System uses the UDP protocol.

Connection-oriented systems work more like your telephone—you have to dial a number and establish a connection to the other end before you can send a message. Connection-oriented protocols pessimistically assume that some data will be lost or disordered in most transmissions. They guarantee that transmitted data will reach its destination in the proper sequence and that all data will get through. To accomplish this, connection-oriented protocols that also are considered reliable retain the transmitted data and negotiate for a Mcitp
retransmission when needed. Once all the needed data has arrived at the remote end, it can be reassembled into its proper sequence and passed to the higher-level protocols. This means that any application can depend on a connection-oriented transport to reliably deliver data exactly as it was transmitted. TCP is an example of a reliable connection-oriented Internet protocol. Frame Relay is an example of an unreliable connection-oriented protocol. Unreliable does not imply undependable. It just means that the protocol does not support the retransmission of lost or errored data.