Details Title: A+ Ch06 Description: Data Communications Total Flash Cards: 48 Created: 11/03/2008 07:37:40		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Computer Science Flashcards
Cards in this set: Term Router Definition Connectivity device used to seperate or join different network segments together. Term Bandwidth Definition The meda's total ability to carry data at a given distance Term WPA Definition Advanced encryption used in wireless networks. Term Hotspot Definition Range of transmission around teh access point. Term Bus Definition Topology is which the nodes, or stations, of the network connect to a central communication link, or backbone. Term Bridge Definition Connectivity device that connects two local area networks, or two segments of the LAN. Term Appletalk Definition Protocol used in Apple Network, routable. Term Half-Duplex Definition Data can travel in both directions, but only one at a time. Term Full-Duplex Definition Data can travel in both directions at the same time. Term Simplex Definition Data can travel in only one direction. Term Single Mode Fiber Definition Light travels in one path from transmitter to receiver, longer distances, more expensive. Term Switch Definition A relatively complicated connectivity device used to connect multiple nodes together. Dedicated bandwidth. Term Bluetooth Definition Wireless specification used to connect devices such as PDA's, cell phones, digital cameras, PC's, notebooks, cars, and printers Term RG-59 Definition Cable is widely used for CATV and video services Term RG-6 Definition Cable type preferred for satellite antenna's and HDTV receivers. Term Crosstalk Definition When data wires lie in parallel, data jumps from wire to wire, corrupting data. Term CAT5 Definition UTP, Rated for 100Mbps transmission, can travel 100 meters Term Thicknet Definition RG-8, 10Base5, 500 Meters Term Thinnet Definition RG-58, 10Base2, 185 meters Term Plenum Cable Definition Cables suitable for use in ducts because they have low smoke producing characteristics Term Straight-Through Cable Definition Cable used to connect two unlike devices together Term Client-Server Network Definition Control of a Network where workstations operate in conjunction with a master computer. Term 802.11b Definition Wireless specification capable of transmitting at 11 Mbps at a frequency of 2.4GHz Term Class A Definition IP address class range from 001-126. Supports nearly 17 million nodes. Term Peer to Peer Network Definition Control of a network where each computer is equal to the other units on the network. Term Crossover Cable Definition Cable used to connect two like devices together Term 802.11g Definition Wireless specification capable of transmitting at 54Mbps at a frequency of 2.4Ghz Term Class C Definition IP address class range from 192-223. Supports nearly 254 nodes. Term Access Point Definition A device used in networks to connect wireless devices together. Term Topology Definition Hardware connection method that describes the arrangement of a network. Term 802.11a Definition Wireless specification capable of transmitting at 54 Mbps at a frequency of 5.0 GHz Term WEP Definition Basic encryption used in wireless networks. Term Class B Definition IP address class range from 128-191. Supports nearly 65 thousand nodes. Term LAN Definition sustems designed to connect computers together in relatively close proximity. Term Types of FO connectors Definition ST, SC, LC, MT-RG Term NWLink, IPX/SPX Definition Protocol used in Novell networks, Routable. Term NetBEUI Definition Fast, efficient protocol, suitable for use on smaller networks. Not Routable. Term Protocol Definition A set of rules that governs how communications are conducted across a network Term Mesh Definition Topology in which each node has a direct physical connection to all the other nodes in the network. Term Ring Definition Topology in which all devices are connected together in the shape of a closed loop. Term Hub Definition A relatively simple connectivity device used to connect multiple nodes together. Shared Bandwidth. Term Star Definition Topology in which all the links eventually lead back to a central unit, or focused point. Term Multi-Mode Fiber Definition Light travels in many paths from the transmitter to the receiver, cheaper, shorter distances. Term Attenuation Definition A measure of how much signal loss occurs as the information moves across the medium. Term MAC Address Table Definition Address Table that keeps track of devices attached to the switch. Term TCP/IP Definition Protocol used by the internet. Most OS's support it. Routable. Term WAN Definition systems designed to connect computers together over large geographical areas. Term ISP Definition company that assigns an IP address to it's customers.