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1. Electronic systems that transmit data over communications lines from one location to another are called
A.transmission systems
B.communications systems
C.microcomputer systems
D.mainframe transmission systems


2. Connectivity is a concept related to
A.transmitting information, either by computer or by phone
B.the interconnections within a computer
C.using computer networks to link people and resources
D.being in an active session with your computer


3. A relatively new technology that allows wireless connectivity is called
A.Bluetooth
B.Blacktooth
C.Blueband
D.Broadband


4. Voiceband
A.allows the user to download messages
B.is used for standard telephone communication
C.is used in special leased lines to connect minicomputers and mainframes
D.provides a high-speed communication channel


5. Communication systems are
A.electronic systems that transcribe information from one location to another
B.available only to large corporations that can afford the connection costs
C.electronic systems that transmit data from one location to another
D.available only on large mainframes with huge storage devices


6. One of the most dramatic changes in connectivity and communications in the past five years has been
A.mobile or wireless telephones
B.public and private discussion
C.satellite uplinks
D.running programs on remote computers


7. The four basic elements of any communication systems include
A.Peer to peer, Videoconferencing, Online photo-conferencing, Net optical
B.Sending and receiving devices, Communication channel, Connection device, and Data transmission specifications
C.Telephone lines, coaxial cables, fiber-optics cables, and communication channel
D.Star, bus, ring, and hierarchical


8. An example of a connection device would be
A.peer to peer
B.printer
C.modem
D.your computer


9. An example of a sending and receiving device might include
A.peer to peer
B.modem
C.printer
D.your computer


10. The telephone is an example of a(n) __________ signal.
A.analog
B.digital
C.modulated
D.demodulated


11. Computers, in contras, send and receive __________ signals.
A.analog
B.digital
C.modulated
D.demodulated


12. A credit card-sized expansion board that is inserted into portable computers that connects the modem to the telephone wall jack is the
A.Internal modem
B.External modem
C.PC Card modem
D.Wireless modem


13. A modem that is contained within the system unit is called a(n) __________ modem.
A.external
B.internal
C.wireless
D.fax


14. A modem that uses the telephone lines and connects to the computer through a serial port is a(n) __________ modem.
A.external
B.internal
C.wireless
D.fax


15. A modem that doesn't need to be connected to a telephone line is the __________ modem.
A.external
B.internal
C.wireless
D.fax


16. An older type of data communications channel, using multiple copper wires, is called __________ technology.
A.microwave
B.fiber-optic cable
C.coaxial cable
D.twisted pair


17. A communications channel that is made up of a single copper core with a ground sheath around it is called a
A.twisted pair channel
B.microwave
C.coaxial cable
D.fiber-optic cable


18. Data is transmitted using light through a(n) __________ cable.
A.twisted pair
B.fiber-optic
C.coaxial
D.microwave


19. An affordable technology that uses existing telephone lines to provide high-speed connections is called
A.ISDN
B.microwave
C.cable modem
D.DSL


20. Communication in a straight line is accomplished using
A.twisted pairs
B.fiber-optics
C.coaxial cables
D.microwaves


21. Another type of microwave data transmission uses __________.
A.towers
B.satellites
C.telephone twisted pair
D.cellular phones


22. The capacity of a communication channel is measured in
A.bandwidth
B.bit capacity
C.baud rate
D.data flow


23. The greatest capacity for data transmission happens in __________ devices.
A.vioceband
B.medium band
C.broadband
D.mega-band


24. Data transmission in which bits flow simultaneously through separate lines is called __________ data transmission.
A.serial
B.parallel
C.simplex
D.asynchronous


25. Data transmission in which the bits flow in a series or continuous stream is __________ data transmission.
A.serial
B.parallel
C.simplex
D.asynchronous


26. Data transmission in which the data flows in one direction only is called
A.full-duplex
B.half-duplex
C.simplex
D.asynchronous


27. Data transmission in which data flows in both directions, alternating in direction, is called
A.full-duplex
B.half-duplex
C.simplex
D.asynchronous


28. Data transmission in which data flows in both directions at the same time is called
A.full-duplex
B.half-duplex
C.simplex
D.asynchronous


29. A special high-speed line used by large corporations to support digital communications is known as
A.Satellite/air connection service lines
B.Cable modems
C.Digital subscriber lines
D.T1, T2, T3 and T4 lines


30. Clearly the fastest and most efficient form of two-way communication in which data is transmitted back and forth at the same time is
A.hybrid duplex
B.half-duplex
C.full-duplex
D.simplex


31. The rules for exchanging data between computers are called
A.interconnections
B.synchronous packages
C.protocols
D.data transmission synchronization


32. The standard protocol for the Internet is
A.TCP
B.IP protocol
C.IP address
D.TCP/IP


33. A device that is connected to a network is called a
A.client
B.node
C.server
D.host


34. A device, connected to a network, that requests resources available from other devices is called a
A.client
B.server
C.host
D.NOS


35. A device, connected to a network, that shares resources with other nodes is called a
A.client
B.server
C.host
D.NOS


36. The NOS refers to the
A.operating system on the clients
B.Network Order System, or topology
C.operating system of the network
D.network architecture


37. The arrangement of the computers in a network is called the
A.NOS
B.topology
C.node layout
D.protocol


38. A network configuration in which each computer is attached to a central unit is called a(n) __________ network.
A.star
B.bus
C.ring
D.hierarchical


39. A network configuration in which each device is attached to a central cable is called a __________ network.
A.star
B.bus
C.ring
D.hierarchical


40. In a(n) __________ network, each computer is connected to two others.
A.star
B.bus
C.ring
D.hierarchical


41. A network in which the central computer is a host to a cluster of other computers that in turn are hosts is called a(n) __________ network.
A.star
B.bus
C.ring
D.hierarchical


42. If the majority of the processing power is centralized in one large computer and the nodes connected to it have little or no processing capability, it is called a(n) __________ network.
A.hybrid
B.terminal
C.peer-to-peer
D.hierarchical


43. If the nodes can serve as both servers and clients, the network is said to be
A.hybrid
B.terminal
C.peer-to-peer
D.hierarchical


44. The term used to describe the system where one computer is used to coordinate and supply services to other notes on the network is
A.peer-to-peer
B.client/server
C.hybrid
D.client/master


45. A network of devices in close physical proximity is called a
A.LAN
B.WAN
C.MAN
D.SPAN


46. A network linking several buildings in the same general location is called a
A.LAN
B.WAN
C.MAN
D.SPAN


47. A network that spans a nation or the world is called a
A.LAN
B.WAN
C.MAN
D.SPAN


48. ________ is the process of breaking down information sent or transmitted across the Internet into small parts called packets.
A.protocol
B.bandwidth
C.reformatting
D.identification


49. The systems developed to automatically convert text-based addresses to numeric IP addresses is called
A.DSL
B.DNS
C.SNL
D.SDN


50. _______ is the process of integrating or connecting a wide range of different network configurations, operating systems, and strategies so that a user on one network can access resources available throughout the company.
A.Extreme computing
B.All-ways computing
C.Organized computing
D.Enterprise computing


51. The term data communications system refers to electronic systems that transmit data over distances.
A.True
B.False


52. Connectivity is a concept related to using computer networks to link people and resources.
A.True
B.False


53. Connectivity requires the use of the telephone.
A.True
B.False


54. Telephones typically send and receive analog data.
A.True
B.False


55. A computer sends and receives analog signals.
A.True
B.False


56. Connectivity enables microcomputer users to share data.
A.True
B.False


57. The telephone is an example of a digital signal.
A.True
B.False


58. Computers use digital signals to communicate within the system unit.
A.True
B.False


59. A modem converts digital signals to analog.
A.True
B.False


60. A modem converts analog signals to digital.
A.True
B.False


61. Demodulation is the process of converting analog signals to digital.
A.True
B.False


62. Modulation is the process of converting digital signals to analog.
A.True
B.False


63. Modem stands for modulator/demodulator.
A.True
B.False


64. Data communications are measured in bits per second.
A.True
B.False


65. Data communications are measure in bytes per second.
A.True
B.False


66. An external modem is plugged directly into the system motherboard.
A.True
B.False


67. An external modem stands apart from the computer and typically is connected by a cable plugged into a serial port.
A.True
B.False


68. An internal modem consists of a plug-in circuit board inside the system unit.
A.True
B.False


69. T1, T2, T3 and T4 lines support all digital communications and provide very high capacity.
A.True
B.False


70. Cable modems are as fast as T1 lines.
A.True
B.False


71. Cable modems are slower than regular modems but more reliable.
A.True
B.False


72. Fiber-optic cable transmission is more secure, lighter, less expensive and more reliable than coaxial cable.
A.True
B.False


73. Most telephone lines are coaxial cable.
A.True
B.False


74. One coaxial cable can handle many times the amount of data that can be sent over a twisted pair.
A.True
B.False


75. A twisted pair can handle many times the amount of data that can be sent over a coaxial cable.
A.True
B.False


76. With a single, direct microwave transmission you can send a message from the United States to England.
A.True
B.False


77. Microwave transmission is in a straight line only.
A.True
B.False


78. Using satellites, it is always possible to perform data transmission.
A.True
B.False


79. The term bandwidth refers to the measurement of the capacity of the communication channel.
A.True
B.False


80. The term bandwidth refers to the way data travels.
A.True
B.False


81. Voiceband is the slowest data transmission bandwidth.
A.True
B.False


82. The channel with the greatest bandwidth is called broadband.
A.True
B.False


83. In parallel transmission, the bits move down a single wire.
A.True
B.False


84. In serial transmission, the bits move down a single wire.
A.True
B.False


85. In parallel transmission, several bits move down a single wire at the same time.
A.True
B.False


86. In simplex communication, data travels in one direction.
A.True
B.False


87. Half-duplex communication allows the data to move in both directions, but it can only move one way at a time.
A.True
B.False


88. Half-duplex communication allows data to flow in both directions at the same time.
A.True
B.False


89. Full-duplex communication allows data to flow in both directions at the same time.
A.True
B.False


90. Most microcomputer users use simplex data transmission.
A.True
B.False


91. Most microcomputer users use full-duplex data transmission.
A.True
B.False


92. The set of rules that govern data transmission is called prototype.
A.True
B.False


93. The set of rules that govern data transmission is called a protocol.
A.True
B.False


94. A computer protocol is a communications system connecting two or more computers allowing them to share data and resources.
A.True
B.False


95. The standard protocol for the Internet is TCP/IP (transmission control protocol/Internet protocol.
A.True
B.False


96. The essential features of this protocol (TCP/IP) involve identifying sending and receiving devices and converting text-based addresses to numeric IP addresses.
A.True
B.False


97. Converting text-based addresses to numeric IP addresses is called reformatting.
A.True
B.False


98. The arrangement and coordination of resources in a network is described by its architecture.
A.True
B.False


99. On a network, a server can be a node.
A.True
B.False


100. Any device attached to a network could be considered a node.
A.True
B.False


101. A client provides resources for the servers on a network.
A.True
B.False


102. The NOS controls and coordinates the activities of all computers and other devices on a network.
A.True
B.False


103. The topology of a network is the arrangement of the computers within it.
A.True
B.False


104. Distributed data processing means that the resources from one computer are distributed across many clients in the network.
A.True
B.False


105. In a distributed data processing system, computers can perform processing tasks at their own dispersed locations yet share programs, data, and other resources.
A.True
B.False


106. A host computer is generally a centralized, mini or mainframe that provides resources and processing for several terminals.
A.True
B.False


107. A network must contain machines of similar type and processing speed.
A.True
B.False


108. A network can connect all types of computers from supercomputers to desktop units.
A.True
B.False


109. When all the terminal devices are connected to a central unit, the configuration is called a star network.
A.True
B.False


110. When all the terminal devices are connected to a central unit, the configuration is called a ring network.
A.True
B.False


111. The most common time-sharing system is a star configuration.
A.True
B.False


112. The most common time-sharing system is a bus configuration.
A.True
B.False


113. Each device is in charge of its own communication control in a bus network.
A.True
B.False


114. Each device is in charge of its own communication control in a hierarchical network.
A.True
B.False


115. If each device in the network is connected to two other devices, the network configuration is a ring.
A.True
B.False


116. If each device in the network is connected to two other devices, the network configuration is a star.
A.True
B.False


117. If each device in the network is connected to two other devices, the network configuration is a hierarchy.
A.True
B.False


118. A network of several computers linked to a central host computer is called a hierarchical network.
A.True
B.False


119. A network of several computers linked to a central host computer is called a bus network.
A.True
B.False


120. A network of networked hosts is called a hybrid network.
A.True
B.False


121. In a terminal network system, the computing power is centralized and the remote computers have little or no processing capability.
A.True
B.False


122. In a peer-to-peer network system, the computing power is centralized and the nodes have little or no processing capability.
A.True
B.False


123. In a client/server network, the computing power is centralized and the remote computers have little or no processing capability.
A.True
B.False


124. In a peer-to-peer network, only the central host computer supplies the resources, the other computers request resources from this host.
A.True
B.False


125. A network in which the computers and other devices are in close physical proximity is called a MAN.
A.True
B.False


126. A LAN can benefit a company by allowing workers to share equipment like printers and file servers.
A.True
B.False


127. A WAN can benefit a company by allowing workers to share equipment like printers and file servers.
A.True
B.False


128. LANs can be connected to other LANs using a gateway.
A.True
B.False


129. A network that connects buildings within a city is called a MAN.
A.True
B.False


130. The Internet is an example of a LAN.
A.True
B.False


131. Electronic systems that transmit data over communications lines from one location to another are called __________ systems.

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132. The concept of using your computer to connect with other computers to share resources is known as __________.

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133. The technology __________ promises to allow a wide variety of nearby devices to communicate with one another without any physical connection.

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134. The single most dramatic change in connectivity and communications in the past five years has been the use of __________.

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135. The four basic elements of any communication system, whether wired or wireless, are sending and receiving devices, __________, connection devices, and __________.

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136. An example of a common communication channel would be _________

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137. A(n) __________ is a device that translates digital signals to analog, and also translates analog signals back to digital.

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138. Most communications specialists measure the speed of communications in ______.

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139. __________ is the term used to describe converting digital signals into analog signals.

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140. __________ is the term used to describe converting analog signals into digital signals.

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141. Telephone lines are made up of hundreds of copper wires called __________.

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142. A high-frequency cable that has a solid core and an outer shield is called __________.

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143. __________ is a transmission medium that transmits data as pulses of lights through tiny tubes of glass.

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144. __________ are high-frequency radio waves used to transmit data in straight lines.

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145. The term used to describe the bits-per-second transmission capacity of a communication channel is __________.

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146. The slowest channels, used for standard telephone communications, are called the __________ band.

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147. The data transmission in which bits flow in a continuous stream is __________.

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148. The data transmission in which bits flow through a series of separate lines simultaneously is __________.

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149. Data traveling only one direction in a communication medium is an example of __________ communication.

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150. Data traveling in both directions in a communication medium, but only moving one direction at a time, is an example of __________ communication.

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151. In __________ communication, data flows through the medium in both directions at the same time.

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152. The rules for exchanging data between computers are known as __________.

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153. The standard protocol for the Internet is __________.

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154. __________ is the term used on the Internet to deliver e-mail and to locate Web sites.

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155. Breaking down messages into small parts called packets is referred to as __________.

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156. The rules for exchanging data between computers are called line __________.

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157. __________ describes how a network is arranged as well as how the resources are shared.

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158. The term __________ describes any device connected to a network.

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159. A device that requests and uses resources from another computer is called a(n) __________.

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160. A device that shares resources with other nodes is called a(n) __________.

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161. In a(n) __________ network, the computing power is located and shared at different locations.

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162. A large centralized computer that supplies computing needs for a series of other computers is called a(n) __________.

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163. The arrangement of the elements of a network is the called the network's __________.

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164. In a(n) __________ network, a number of small computers or peripheral devices are linked to a central computer.

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165. In a(n) __________ network, all the devices are connected to a common, central cable.

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166. The network in which each device is connected to two others is a(n)__________ network.

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167. A network design that links several networks of computers is called a(n) __________ network.

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168. In a(n) __________ network system, all the computing power is centralized in a single computer, usually a mainframe.

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169. If nodes in the network have equal authority and can act as either a client or a server, the network system is called __________.

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170. When one computer in a network supplies the software or other services to the rest of the devices in the network, the network system is __________.

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171. A network of devices in close physical proximity is commonly called a(n) __________ area network.

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172. A network of devices located in several buildings in the same town is called a(n) __________ area network.

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173. A network that spans countries or continents is called a(n) __________ area network.

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174. Define and describe communications systems.

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175. Define connectivity.

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176. Describe the four basic elements of most communication systems.

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177. Describe the differences between the three major physical connection mediums: telephone lines, coaxial cable, and fiber-optic cable.

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178. List and briefly describe the four different types of modems.

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179. Explain the difference between analog and digital signals.

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180. Describe the differences between DSL and cable modems.

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181. Explain the purpose of a modem.

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182. Differentiate between serial and parallel transmissions.

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183. Explain the term bandwidth.

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184. Differentiate between full- and half-duplex transmission.

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185. Explain what a network protocol is.

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186. Explain the following terms: node, client, server, and NOS.

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187. List the two essential features of TCP/IP and what they do.

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188. Define the term topology and then list three common network topologies.

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189. Explain the difference between a terminal network and a peer-to-peer network.

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190. Describe the client/server relationship.

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191. Explain how a LAN differs from a WAN, and how a LAN differs from a MAN.

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