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| The entire domain name that specifies the name of the computer as well as the domain in which it resides and the top-level DNS domain |
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| A method of controlling the amount of data that is transmitted within a given period of time |
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| A fast-packet-switching method that uses the first 64 bytes of a frame to determine whether the frame is corrupted. |
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| A grouping of information that is transmitted as a unit across the network at the data-link layer of the OSI model |
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| a field of a packet that holds a CRC value to ensure that all the frame's data arrives intact |
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| in a data frame, the field that specifies the length of a frame |
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| a high-speed data-link layer switching protocol that is used across multiple virtual circuits of a common carrior to give the end user the appearance of a dedicated line |
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| in a data frame, the field that names the protocol that is being sent in the frame |
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| the number of cycles of an alternating current signal over a unit of time. Frequency is expressed in Hertz |
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| A protocol that provides for the transfer of files between two systems. FTP is part of the TCP/IP protocol suite |
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| A backup in which files, regardless of whether they have been changed, are copied to the backup media. In a full backup, the archive bits of the files are reset. |
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| A system in which data is transmitted in two directions simultaneously. |
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| a hardware or software solution that enables communications between two dissimilar networking systems or protocols. A gateway can operate at any layer of the OSI model. |
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| one billion bits or 1000Mb |
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| the throughput of a given network medium in terms of 1 billion bps |
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| A backup strategy of maintaining backups on a daily, weekly, and monthly schedule. Backups are made on a five-day or seven-day schedule. A full backup is performed at least once a week. |
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| the IEEE 802.3z specification that defines standards for data transmissions of 1Gbps |
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| a method of flow control in which the sending and receiving hosts agree on a rate of data transmission. After the rate is determined, the communication takes place at the guaranteed rate until the sender is finished. No buffering takes place at the reveiver |
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| a person who carries out hacking on a computer software program |
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| the process of deconstructing computer software in an effor to understand how it works and to improve it |
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| A connection in which data is transmitted in both directions, but not simultaneously |
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| the initial communication between two data communication devices, during which they agree on protocol and transfer rules for the session |
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| The hardware-encoded MAC address that is burned into every NIC |
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| A device that is plugged into an interface for the purposes of simulating a network connection and thus enabling the interface to be tested as if it is operating while connected |
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| A cersion of Token Ring that has a maximum speed of 100Mbps. This is in contrast with other Token Ring standards, which have maximum speeds of 4Mbps or 16 Mbps |
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| The means by which routing protocols determine the shortest way to reach a given destination |
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| The DNS server that offers zome data from files that are stored on the machine |
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| a network to which access is limited, restricted, or controlled. Most corporate networks are private networks |
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| a standard or specification that is created by a single manufacturer, vendor, or other private enterprise |
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| a set of rules or standards that control data transmission and other interactions between networks, computers, peripheral devices, and operating systems |
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| two or more protocols that work together, such as TCP and IP or IPX and SPX |
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| Protocol Identification Field |
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Definition
| in a frame, a 5-byte field used to identify to the destination node the protocol that is being used in the data transmission |
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| a server that acts as a go-between for a workstation and that internet. A proxy server typically provids an increased level of security, caching, and administrative control |
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| a term that refers to all the telephone networks and services in the world. All the PSTN is digital, except the connection between local exchanges and customers, which remains analog |
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| a network, such as the internet, to which anyone can connect with most minimal of restrictions |
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| a set of ports that are connected to the network ports throughout a building. Connections to networking equipment, such as hubs or switchs, are established at the punchdown tool |
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