Computer Networking

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Computer Networking

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    Wrap up - Computer Networking

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    OSI - Computer Networking

    The Open Systems Interconnection model (OSI model) is a conceptual model that characterises and standardises the communication functions of a telecommunication or computing system without regard to its underlying internal structure and technology. Its goal is the interoperability of diverse communication systems with standard communication protocols. The model partitions a communication system into abstraction layers.

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    Secure Transport - Computer Networking

    Transport Layer Security (TLS), and its now-deprecated predecessor, Secure Sockets Layer (SSL),[1] are cryptographic protocols designed to provide communications security over a computer network.[2] Several versions of the protocols find widespread use in applications such as web browsing, email, instant messaging, and voice over IP (VoIP). Websites can use TLS to secure all communications between their servers and web browsers.

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    Application Layer - Computer Networking

    An application layer is an abstraction layer that specifies the shared communications protocols and interface methods used by hosts in a communications network.[1] The application layer abstraction is used in both of the standard models of computer networking: the Internet Protocol Suite (TCP/IP) and the OSI model.[2] Although both models use the same term for their respective highest level layer, the detailed definitions and purposes are different.

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    Transport Layer - Computer Networking

    In computer networking, the transport layer is a conceptual division of methods in the layered architecture of protocols in the network stack in the Internet protocol suite and the OSI model. The protocols of this layer provide host-to-host communication services for applications.[1]:§1.1.3 It provides services such as connection-oriented communication, reliability, flow control, and multiplexing.

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    DNS - Computer Networking

    The Domain Name System (DNS) is a hierarchical and decentralized naming system for computers, services, or other resources connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities. Most prominently, it translates more readily memorized domain names to the numerical IP addresses needed for locating and identifying computer services and devices with the underlying network protocols. By providing a worldwide, distributed directory service, the Domain Name System has been an essential component of the functionality of the Internet since 1985.

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    Internet Layer - Computer Networking

    The internet layer is a group of internetworking methods, protocols, and specifications in the Internet protocol suite that are used to transport network packets from the originating host across network boundaries; if necessary, to the destination host specified by an IP address. The internet layer derives its name from its function facilitating internetworking, which is the concept of connecting multiple networks with each other through gateways.

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    Link Layer - Computer Networking

    In computer networking, the link layer is the lowest layer in the Internet protocol suite, the networking architecture of the Internet. The link layer is the group of methods and communications protocols confined to the link that a host is physically connected to. The link is the physical and logical network component used to interconnect hosts or nodes in the network and a link protocol is a suite of methods and standards that operate only between adjacent network nodes of a network segment.

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    Architecture - Computer Networking

    Computer Network Architecture is defined as the physical and logical design of the software, hardware, protocols, and media of the transmission of data. Simply we can say that how computers are organized and how tasks are allocated to the computer.

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    Packets - Computer Networking

    A network packet is a formatted unit of data carried by a packet-switched network. A packet consists of control information and user data,[1] which is also known as the payload. Control information provides data for delivering the payload, for example: source and destination network addresses, codes, and sequencing information. Typically, control information is found in packet headers and trailers.

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