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2
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Part of the TCP/IP model that performs the same function as the transport layer in the OSI model.
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5
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Software that frames the customer’s payload with the Frame Relay overhead information, including the first DLCI (data link connection identifier) address, to prepare it for delivery to the network.
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6
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Developed by Cisco to provide a robust protocol for rerouting within an autonomous system (AS); a type of IGP.
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10
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Set of routing protocols used within an autonomous system.
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12
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Table that the operating system uses to locate files on a disk; because a file may be divided into many sections that are scattered around the disk, the FAT keeps track of all the pieces.
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14
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Coordinates standards for telecommunications on behalf of the International Telecommunication Union (ITU).
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15
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Hardware used to enter and retrieve data from the system.
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16
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Early versions were actually floppy; today, they use hard 3.5 inch disk; also referred to as removable drive.
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17
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Businesses or organizations that provide consumers with access to the Internet and related services.
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18
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Service with standards and specifications designed to transmit data; some users have had success at transmitting voice.
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20
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Broad term that can refer to anything from mainframes to PDAs; any technology that moves information (voice, video, or data).
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21
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Non-profit corporation created to oversee Internet-related tasks previously performed for the U.S. Government by other organizations; tasks include managing the assignment of domain names and IP addresses, and introducing new generic top-level domain
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22
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Part of an IP address that is uniquely assigned by an administrator.
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23
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Network layer protocol provided with TCP/IP; connectionless, unreliable protocol that provides features for addressing, type or service specification, fragmentation and reassembly, and security.
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24
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Blending data into a carrier signal; a modem modulates data by converting it to audible tones that can be transmitted on a telephone wire, and demodulates received signals to get the data.
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25
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Protocol users interact with (by means of a browser) to access Web pages over an internet or intranet.
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27
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Unit of frequency; one hertz simply means one cycle per second, applied to any periodic event.
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29
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A feature that allows certain hardware subsystems in a computer to access system memory for reading and/or writing independently of the CPU; can include disk drive controllers, graphics cards, network cards, and sound cards.
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30
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Used to implement exterior protocols and interconnect autonomous systems.
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31
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A barrier between a network and the Internet through which only authorized users can pass; set of security policies to screen incoming and outgoing messages; also used to isolate one part of a network from another.
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32
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Allows groups to communicate interactively via keyboard and screen display.
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33
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Number of times a wave repeats a cycle in a one-second period; measured in cycles per second, or hertz.
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35
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Can hold over seven times as much information as CDs; drives are backward- compatible with CD-ROM drives.
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36
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Radiation that causes unwanted signals (interference or noise) to be induced in other circuits; also called radio frequency interference or RFI.
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38
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A lossy compression technique for color images.
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39
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Easy way of accessing applications with the use of a pointing device, such as a mouse.
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40
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Network layer protocol provided with TCP/IP; used to report errors and provide other information relevant to IP packet processing.
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41
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A telephone company that provides connections between local exchanges in different geographic areas.
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