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| A digital network used to send data between computers. |
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| 1. Collection of computers, printers, routers, switches, and other devices that can communicate with each other over some transmission medium. 2. Command that assigns a NIC-based address to which the router is directly connected. |
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| The network that combines enterprise networks, individual users, and ISPs into a single global IP network. |
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| To transfer data from the computer functioning as a server to the client computer you are using. |
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| Real-time communication between two or more people through text. The text is conveyed through computers connected over a network such as the Internet. Files can also be transferred through the IM program to share files. A good example of an IM program is Microsoft Messenger. |
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| Events or signals that show output as fast as possible, or as they happen. |
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| A website where entries are made in journal style. A blog is created by the user, who can make changes to the blog through templates or by altering the HTML code of the blog itself. Visitors can leave posts to the blog. Blog is short for weblog. |
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| A digital media file or files that are distributed over the Internet using syndication feeds, for playback on portable media players and personal computers. |
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| A website that lets visitors add, edit, and delete content, typically without the need for registration. A good example of this is the site Wikipedia.com, where visitors can access the website and add their commentaries to already written articles or create a new article. |
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| Something that helps people collaborate. many people use the term collaboration tool in a software context, for example, collaboration software such as Google Docs and Microsoft Sharepoint Server. Going back in time, a collaboration tool was a piece of paper that many used and edited. |
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| A drag-and-drop network simulator developed by Cisco to design, configure, and troubleshoot network equipment within a controlled, simulated program environment. |
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| A corporate system such as a website that is explicitly used by internal employees. Can be accessed internally or remotely. |
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| Part of a company's intranet that is extended to users outside the company (that is, normally over the Internet). |
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| Technology that allows communication without needing physical connectivity. Examples of wireless technology include cellular telephones, personal digital assistants (PDA), wireless access points, and wireless NICs. |
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| An internationally recognized definition of technical specifications that ensure worldwide consistency. |
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| Binary digit used in the binary numbering system. Binary digits are units of information storage and communication in computing. Each bit can be either a 0 or a 1. |
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| A numbering system characterized by 1s and 0s. |
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| The origin of the PDU. This can be a process, a host, or a node, depending on the layer to which you are referring. |
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| A network device, typically connected to a range of LAN and WAN interfaces, that forwards packets based on their destination IP addresses. |
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| In networking, a symbol used when drawing network diagrams that represent a part of the network whose details can be ignored for the purposes of the diagram. |
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| Network layer protocol in the TCP/IP stack offering a connectionless internetwork service. IP provides features for addressing, type-of-service specification, fragmentation and reassembly, and security. Documented in RFC 791. |
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| TCP (Transmission Control Protocol) |
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Definition
| A Layer 4 protocol of the TCP/IP model, TCP lets applications guarantee delivery of data cross a network. |
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| Another form of the root word converge in the phrase "converged network." This kind of network aggregates various forms of traffic such as voice, video, and data on the same network infrastructure. A more common usage represents the process by which routers recognize that something has occurred that changes some routers' routes, reacts to the vent, and finds the now-currently best routes. |
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| The design on networks that can continue to operate without interruption in the case of hardware, software, or communications failures. |
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| A network architecture desinged to eliminate network downtime cause by a single point of failure. |
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| The ability of a protocol, system, or component to be modified to fit a new need. |
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| A combination of many IP subnets and networks, as created b y building a network using routers. The term internetwork is used to avoid confusion with the term network, because an internetwork can include several IP networks. |
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| When used generically, this term refers to end-user data along with networking headers and trailers that are transmitted through a network. When used specifically, it is end-user data, along with the network or Internet layer headers and any higher-layer headers, but no lower-layer headers or trailers. |
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| A control mechanism that can provide different priorities to different users or data flows, or guarantee a certain level of performance to a data flow in accordance with request from the application program. |
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| In networking, a measurement of the speed of bits that can be transmitted over a particular link. It is the amount of data that can be transmitted in a certain amount of time. For digital bandwidth, it is usually expressed in bits per second (bps). |
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| A routing feature in which frames in an interface output queue are prioritized based on various characteristics such as packet size and interface type. |
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| A process used to verify the identity of a person or process. |
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| Any combination of hardware device and/or software application designed to protect network devices from outside network users and or malicious applications and files. |
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| A system or network design characterized by one or more major components that are required to maintain operation. |
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