Presentation layer makes sure that the communications going through devices are in the appropriate form for the receiver. For example, a presentation layer program may format a file transfer request in binary code to make sure a file transfered successfully. There are three aspect of presentation layer. Data formats – Example, Postscript, ASCII, or binary formats Compatibility with […]
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The session layer, provides various services, including tracking the number of bytes that each end of the session has acknowledged receiving from the other end of the session. This session layer allows applications functioning on devices to establish, manage, and terminate a dialog through a network. Session layer functionality includes: • Virtual connection between application […]
This Part of article is copied directly from wikipedia because it has the best way of interpretation. Establishing a normal TCP connection requires three separate steps: The first host (Alice) sends the second host (Bob) a “synchronize” (SYN) message with its own sequence number x, which Bob receives. Bob replies with a synchronize-acknowledgment (SYN-ACK) message […]
Handshaking – according to wikipedia: A handshake is an automated process of negotiation between two communicating participants using human being has example(e.g. “Alice and Bob”) through the exchange of information that establishes the protocols of a communication link at the start of the communication, before full communication begins. In Other words the handshaking process happens […]
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Since there are many processes running on a given host (e.g. multiple Internet browsers). UDP uses a simple transmission model without implicit hand-shaking dialogues for guaranteeing reliability, ordering, or data integrity. Thus, UDP provides an unreliable service and datagrams may arrive out of order, appear duplicated, or go missing without notice. UDP assumes that error […]
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This chapter provides an overview of the most important and common protocols of the TCP/IP transport layer. These include: • User Datagram Protocol (UDP) • Transmission Control Protocol (TCP) Each process that wants to communicate with another process identifies itself to the TCP/IP protocol suite by one or more ports. The best-known transport protocol of […]
The network layer is the third level of the Open Systems Interconnection Model (OSI Model) and the layer that provides data routing paths for network communication. Data is transferred in the form of packets (https://www.solarexinstitute.com.ng/network-layer-packet-data/) via logical network paths in an ordered format controlled by the network layer. The network layer is considered the backbone […]
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