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c6
Student: ___________________________________________________________________________
1. A common application of middleware is to allow programs written for access to one database to access
another database.
True False
2. A change in technology often induces social, political, and economic system changes long before a critical
mass of users is reached.
True False
3. The telecommunications industry has changed from a deregulated market to government-regulated
monopolies.
True False
4. Middleware is an essential component of any IT infrastructure because it allows disparate systems to be
isolated.
True False
5. Business-to-business electronic commerce websites can be used by businesses to establish strategic
relationships with their customers and suppliers.
True False
6. The Internet has a central computer system that is the most powerful in the world.
True False
7. The Internet provides electronic discussion forums and bulletin board systems that are formed and managed
by special-interest newsgroups.
True False
8. Booking a reservation over the Internet costs an airline about 50 percent less than booking the same
reservation over the telephone.
True False
9. An extranet is a network inside an organization that uses Internet technologies to provide an Internet-like
environment within the enterprise.
True False
10. Intranets seldom have much impact on communications and collaboration within an enterprise.
True False
11. Software that is installed on intranet Web servers can be accessed by employees within the company or by
external business partners who are using Web browsers, if access is allowed by the company.
True False
12. If access to data is not restricted with passwords and other security mechanisms, the integrity of the data can
be easily compromised.
True False
13. An extranet is a network inside a company that uses Internet technologies to provide a private Internet-like
network environment to the firm.
True False
14. Web browser technology makes customer and supplier access of intranet resources a lot easier and faster
than with previous business methods.
True False
15. Supersol discovered that sharing business intelligence with their competition improved the quality of the
goods in their warehouses.
True False
16. A client/server network of several interconnected local area networks can replace a large mainframe-based
network with many end user terminals.
True False
17. The network-centric concept views the PC as the central computing resource of any computing
environment.
True False
18. In the central server architecture of P2P networking, the P2P software connects your PC to a central server
with the directory of all users of the network.
True False
19. In the pure peer-to-peer architecture of P2P networking, the P2P software connects your PC to a central
server with the directory of all users of the network.
True False
20. The Internet, as originally conceived in the late 1960s, was a pure peer-to-peer system.
True False
21. The unique achievement of Napster was the empowerment of the peers, in association with a central index,
to quickly and efficiently locate available content.
True False
22. Output from analog devices must be converted into digital form in order to input it into a computer.
True False
23. Today, ordinary telephone wire is the least used medium for telecommunications.
True False
24. Newly developed optical routers will be able to send optical signals up to 2,500 miles without regeneration.
True False
25. Communications satellites can use microwave radio as their telecommunications medium.
True False
26. According to the Real World case, in the Nevada Department of Corrections out of date information poses a
threat to security.
True False
27. According to the Real World case, in the Nevada Department of Corrections the issue of latency was never
an issue because they decided to use a satellite system.
True False
28. PCS phone systems cost substantially more to operate and use than cellular systems, but have lower power
consumption requirements.
True False
29. Wi-Fi is faster and less expensive than Standard Ethernet and other common wire-based LAN technologies.
True False
30. A Bluetooth chip is designed to replace cables; it takes the information normally carried by a cable and
transmits it to a receiver Bluetooth chip.
True False
31. In frequency division multiplexing (FDM), a multiplexer effectively divides one high-speed channel into
multiple high-speed channels.
True False
32. Multiplexers work to increase the number of transmissions possible, while also increasing the number of
physical data channels.
True False
33. Telecommunications and network management software can reside in communications processors, such as
multiplexers and routers.
True False
34. Mainframe-based wide area networks frequently use telecommunications monitors or teleprocessing
monitors.
True False
35. The Open System Interconnection (OSI) model was officially adapted as an international standard by the
International Organization of Standards (ISO).
True False
36. The Internet uses a system of telecommunications protocols that have become so widely used that they are
now accepted as a network architecture.
True False
37. An IP address is expressed as four decimal numbers separated by periods, such as 127.154.95.6.
True False
38. IP addressing can identify a particular PC connected to the Internet, but not the network to which it is
attached.
True False
39. Skype software allows telephone conversations through a PC and over the Internet instead of a separate
phone connection.
True False
40. Each IP address is divided into three address classes, which are A, B, and C. Class C addresses are normally
owned by large Internet service providers or major corporations.
True False
41. New technologies are extending IP addresses beyond computers to TVs, toasters, and coffeemakers.
True False
42. Developed to work Internet2, IPv6 increases the IP address size from 32 bits to 256 bits to support more
levels of the address hierarchy.
True False
43. IPv6 supports over 300 trillion trillion trillion addresses.
True False
44. Voice over IP is a technology that allows a remote worker to function as if he or she were directly connected
to a regular telephone network, even while at home or in a remote office.
True False
45. Skype users can call to any non-computer-based landline or mobile telephone in the world for just pennies a
minute.
True False
46. "Bandwidth" is typically measured in characters per second (CPS).
True False
47. Narrow-band channels typically use microwave, fiber optics, or satellite transmission.
True False
48. Frame relay technology is slower than X.25 and not as well suited to handle the heavy communications
traffic of interconnected local area networks.
True False
49. Although we tend to think of the FCC as the oversight body for radio and television, it is equally involved in
all aspects of data and voice communications.
True False
50. Regular telephone service relies on Packet Switching, while the Internet relies on Circuit Switching.
True False
51. Packet Switching involves dividing a message into multiple packets which are transmitted over a network to
the receiver.
True False
52. The Internet is owned by the government of the United States.
True False
53. Telecommunications and network technologies are internetworking and revolutionizing _______________.
A. business and society
B. business and globalization
C. society and politics
D. globalization and politics
54. Which of the following statements best defines a network?
A. The usefulness or utility that comes from linking computers together
B. An interrelated or interconnected chain, group, or system
C. Computers linked together via cabling or wireless technology
D. A group of individuals linked via hardware and software
55. A network with 100 nodes has 9,900 possible connections. A network with 1,000 nodes has
_______________ possible connections.
A. 9,900,000
B. 999,000
C. 99,000
D. over one million
56. Metcalfe's law states that:
A. The usefulness or utility of a network equals the square of the number of users
B. More network nodes equals more usefulness to network members
C. Networks with too many nodes rapidly lose their effectiveness
D. The usefulness or utility of a network equals the number of users times the number of nodes
57. Open systems are a recent telecommunications trend. Open systems:
A. Use common standards for hardware, software, applications, and networking
B. Create a computing environment that is easily accessed by end users and their networked computer systems
C. Provide greater connectivity, and a high degree of network interoperability
D. All of the choices are correct.
58. Programming that serves to "glue together" or mediate between two separate, and usually already existing,
programs is known as _______________.
A. front-line software
B. software handshaking
C. middleware
D. back-line software
59. Local and global telecommunications networks are rapidly converting to digital transmission technologies.
Digital technology provides all of the following benefits over analog technology except:
A. Much lower error rates
B. Equivalent transmission speeds
C. Movement of larger amounts of information
D. Greater economy
60. Telecommunications networks now play vital and pervasive roles in Web-enabled _______________.
A. e-business processes
B. electronic commerce
C. enterprise collaboration
D. All of the choices are correct.
61. Which of the following statements regarding Internet2 is true?
A. Internet2, like the first Internet, is open to all users
B. Internet2 uses the same infrastructure as the current Internet, so it will be easy to learn
C. The purpose of Internet2 is to build a roadmap that can be followed during the next stage of innovation for
the current Internet
D. Internet2 will someday replace the original Internet
62. Most of the institutions and commercial partners on the Internet2 network are connected via
_______________, a network backbone that will soon support throughput of 10 Gbps.
A. Abilene
B. Phoenix
C. Enterprise
D. Indiana
63. Traveling salespeople and those at regional sales offices can use the Internet, extranets, and other networks
to transmit customer orders from their laptop or desktop PCs, thus breaking _______________ barriers.
A. physical
B. competition
C. structural
D. geographic
64. Telecommunications-based business applications can help a company overcome all of the following barriers
to business success except:
A. Time barriers
B. Geographic barriers
C. Human resource barriers
D. Cost barriers
65. All of the following statements about the Internet revolution are true except:
A. The Internet has become the largest and most important network today, and has evolved into a global
information superhighway
B. The central computer system of the Internet is the most powerful communications center in the world
C. The Internet is constantly expanding, as more and more businesses and other organizations join its global
web
D. The Internet does not have a headquarters or governing body
66. Which of the following statements regarding Internet Service Providers is correct?
A. ISPs provide individuals and organizations with access to the Internet for a fee
B. ISPs are independent organizations; they have no connection to one another
C. ISPs are no longer necessary for access to the Internet
D. ISPs provide an indirect connection between a company's networks and the Internet
67. ISPs are connected to one another through network _______________.
A. touch points
B. portals
C. access points
D. hubs
68. Which of the following is a key business use of the Internet?
A. Internet websites for interactive marketing and electronic commerce
B. E-mail, file transfer, and discussion forums
C. Intranet links with remote employee sites
D. All of the choices are correct.
69. Applications that use the Internet and Internet-based technologies are typically less expensive to
_______________ than traditional systems.
A. develop
B. operate
C. maintain
D. All of the choices are correct.
70. Most companies are building e-business and e-commerce websites to achieve all of the following goals
except:
A. Generate new revenue from online sales
B. Increase foot traffic at brick and mortar locations
C. Reduce transaction costs
D. Increase the loyalty of existing customers via Web customer service and support
71. All of the following would typically be supported by an organization's intranet information portal except:
A. Communication and collaboration
B. Business operations and management
C. Web publishing
D. Recruitment
72. The comparative _______________ of publishing and accessing multimedia business information internally
via intranet websites has been one of the primary reasons for the explosive growth in the use of intranets in
business.
A. attractiveness
B. lower cost
C. ease
D. All of the choices are correct.
73. Based on the information presented in the text, telecommunications terminals are best described as:
A. Any input/output device that uses telecommunications networks to transmit or receive data, including
telephones
B. Devices that support data transmission and reception between terminals and computers
C. Channels over which data are transmitted and received
D. Programs that control telecommunications activities and manage the functions of telecommunications
networks
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74. The text lists five basic categories of components in a telecommunications network. One of these categories
includes telecommunications processors, which:
A. Support data transmission and reception between terminals and computers
B. Are channels over which data are transmitted and received
C. Consist of programs that control telecommunications activities and manage the functions of
telecommunications networks
D. Include input/output terminals
75. The five basic categories of components in a telecommunications network include:
A. Protocols, telecommunications channels, computers, telecommunications control software, and modems
B. Terminals, telecommunications processors, telecommunications channels, computers, and
telecommunications control software
C. Terminals, telecommunications channels, computers, and modems
D. Terminals, telecommunications processors, computers, modems, and protocols
76. A network that covers a large geographic distance, such as a state or a country, is considered a
_______________ network.
A. client/server
B. local area
C. small area
D. wide area
77. Which of the following best describes a local area network?
A. A network that covers a large geographic area, such as a city or state
B. A network that connects computers within a limited physical area, such as inside a single building
C. A network that covers no more than a single state
D. A private network that uses the Internet as its main backbone
78. To communicate over a network, each PC usually has a circuit board called a _______________.
A. printed circuit card
B. modem
C. router
D. network interface card
79. All of the following statements about a virtual private network are correct except:
A. Uses the Internet as its main backbone network
B. Connects the intranets of a company's different locations, or establishes extranet links between a company
and its customers, suppliers, and business partners
C. Relies on modem, twisted-pair wire, and router technology
D. Relies on network firewalls, encryption, and other security features to provide a secure network
80. All the following describe a VPN except:
A. A VPN uses the Internet as its main backbone network.
B. A VPN relies on network firewalls, encryption, and other Internet and intranet security features.
C. A VPN uses the Internet to establish secure intranets between its distant offices and locations.
D. A VPN is available for use by anyone with access to the Internet.
81. Older, traditional mainframe-based business information systems are called _______________ systems.
A. historical
B. standard
C. legacy
D. application
82. Most Linux distributions are released via BitTorrent to help with _______________ needs.
A. security
B. bandwidth
C. user registration
D. file compression
83. In telecommunications networks, twisted-pair wire:
A. Is the least commonly used medium
B. Facilitates mobile data communication
C. Is used for both voice and data transmission
D. Is commonly laid on the floors of lakes and oceans
84. A communications medium that consists of one or more central wires surrounded by thick insulation is
called _______________ cable.
A. coaxial
B. fiber optic
C. twisted-pair
D. packet-transmission
85. Compared to coaxial cable, standard twisted-pair telephone lines:
A. Support lower data transmission speeds
B. Are virtually the same as coaxial cable in speed and service provided
C. Have less interference and distortion because of their insulation
D. None of the choices are correct.
86. Fiber optics uses cables consisting of one or more hair-thin filaments of __________ fiber wrapped in a
protective jacket.
A. glass
B. plastic
C. ceramic
D. nylon
87. Fiber optics is regarded as the communications media of the future, primarily due to its _______________.
A. availability
B. greater speed and capacity
C. lower installation costs
D. greater compatibility with existing communications media
88. As it relates to telecommunications media, the problem of the last mile is:
A. A low voltage drop at the end of the line
B. Tying into older technology
C. Finding the money to complete the project
D. None of the choices is correct.
89. The Nevada Department of Corrections uses which of the following technologies to distribute and deliver its
information?
A. Fibre optic cables
B. Satellite system
C. T1 lines
D. All of the choices are correct.
90. Which of the following technologies transmits data at the fastest rate?
A. Modem
B. Cable modem
C. ISDN
D. Home satellite
91. An internetworking unit that connects networks with somewhat dissimilar communications aspects is a
_______________.
A. bridge
B. router
C. gateway
D. hub
92. In a telecommunications network, a hub is a communications processor that:
A. Connects two LANS based on the same network standards or protocols
B. Connects different communications architectures
C. Facilitates port switching
D. None of the choices are correct.
93. In a telecommunications network, a gateway is a communications processor that:
A. Is used for port switching
B. Connects different communications architectures
C. Connects two LANS based on the same network standards or protocols
D. Connects LANs to Wi-Fi networks
94. In telecommunications networks, multiplexers:
A. Convert digital signals to analog and vice versa
B. Allow a single communications channel to carry multiple simultaneous data transmissions
C. Include bridges, routers, hubs, and gateways, which interconnect a local area network with other local and
wide area networks
D. Make connections between communications circuits in a network
95. Network management package functions include all of the following except:
A. Managing network resources and traffic to avoid congestion
B. Providing security
C. Informing network administrators of potential problems before they occur
D. All of the choices are functions of network management packages.
96. Security is a top concern of network management today, so telecommunications software must provide all
of the following except:
A. Authentication
B. Central processing
C. Firewalls
D. Encryption
97. A network configuration that consists of a central computer system with a number of smaller computers tied
directly to it, but not to each other, is a _______________ network.
A. bus
B. ring
C. central processing
D. star
98. Which of the following best describes how star, ring, and bus networks differ?
A. Performance and reliability
B. Performance, reliability, and cost
C. Reliability and cost
D. Performance and cost
99. A(n) _______________ is a standard set of rules and procedures for the control of communication in a
network.
A. amplification
B. algorithm
C. protocols
D. transponders
100. Which one of the following statements regarding a telecommunications network is false?
A. A protocol is a standard set of rules and procedures for the control of communications in a network
B. The communications control information needed for "handshaking" between terminals and computers is a
protocol
C. A protocol deals with the control of data transmission/reception in a network
D. Protocols are not applicable to hardware, such as cables and modems
101. The _______________ layer in an OSI model provides communications services for end users.
A. application
B. data link
C. network
D. transport
102. In an OSI model, the _______________ layer does the routing and forwarding.
A. physical
B. data link
C. network
D. application
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  • 5. c6 Student: ___________________________________________________________________________ 1. A common application of middleware is to allow programs written for access to one database to access another database. True False 2. A change in technology often induces social, political, and economic system changes long before a critical mass of users is reached. True False 3. The telecommunications industry has changed from a deregulated market to government-regulated monopolies. True False 4. Middleware is an essential component of any IT infrastructure because it allows disparate systems to be isolated. True False 5. Business-to-business electronic commerce websites can be used by businesses to establish strategic relationships with their customers and suppliers. True False 6. The Internet has a central computer system that is the most powerful in the world. True False 7. The Internet provides electronic discussion forums and bulletin board systems that are formed and managed by special-interest newsgroups. True False
  • 6. 8. Booking a reservation over the Internet costs an airline about 50 percent less than booking the same reservation over the telephone. True False 9. An extranet is a network inside an organization that uses Internet technologies to provide an Internet-like environment within the enterprise. True False 10. Intranets seldom have much impact on communications and collaboration within an enterprise. True False 11. Software that is installed on intranet Web servers can be accessed by employees within the company or by external business partners who are using Web browsers, if access is allowed by the company. True False 12. If access to data is not restricted with passwords and other security mechanisms, the integrity of the data can be easily compromised. True False 13. An extranet is a network inside a company that uses Internet technologies to provide a private Internet-like network environment to the firm. True False 14. Web browser technology makes customer and supplier access of intranet resources a lot easier and faster than with previous business methods. True False 15. Supersol discovered that sharing business intelligence with their competition improved the quality of the goods in their warehouses. True False
  • 7. 16. A client/server network of several interconnected local area networks can replace a large mainframe-based network with many end user terminals. True False 17. The network-centric concept views the PC as the central computing resource of any computing environment. True False 18. In the central server architecture of P2P networking, the P2P software connects your PC to a central server with the directory of all users of the network. True False 19. In the pure peer-to-peer architecture of P2P networking, the P2P software connects your PC to a central server with the directory of all users of the network. True False 20. The Internet, as originally conceived in the late 1960s, was a pure peer-to-peer system. True False 21. The unique achievement of Napster was the empowerment of the peers, in association with a central index, to quickly and efficiently locate available content. True False 22. Output from analog devices must be converted into digital form in order to input it into a computer. True False 23. Today, ordinary telephone wire is the least used medium for telecommunications. True False 24. Newly developed optical routers will be able to send optical signals up to 2,500 miles without regeneration. True False
  • 8. 25. Communications satellites can use microwave radio as their telecommunications medium. True False 26. According to the Real World case, in the Nevada Department of Corrections out of date information poses a threat to security. True False 27. According to the Real World case, in the Nevada Department of Corrections the issue of latency was never an issue because they decided to use a satellite system. True False 28. PCS phone systems cost substantially more to operate and use than cellular systems, but have lower power consumption requirements. True False 29. Wi-Fi is faster and less expensive than Standard Ethernet and other common wire-based LAN technologies. True False 30. A Bluetooth chip is designed to replace cables; it takes the information normally carried by a cable and transmits it to a receiver Bluetooth chip. True False 31. In frequency division multiplexing (FDM), a multiplexer effectively divides one high-speed channel into multiple high-speed channels. True False 32. Multiplexers work to increase the number of transmissions possible, while also increasing the number of physical data channels. True False 33. Telecommunications and network management software can reside in communications processors, such as multiplexers and routers. True False
  • 9. 34. Mainframe-based wide area networks frequently use telecommunications monitors or teleprocessing monitors. True False 35. The Open System Interconnection (OSI) model was officially adapted as an international standard by the International Organization of Standards (ISO). True False 36. The Internet uses a system of telecommunications protocols that have become so widely used that they are now accepted as a network architecture. True False 37. An IP address is expressed as four decimal numbers separated by periods, such as 127.154.95.6. True False 38. IP addressing can identify a particular PC connected to the Internet, but not the network to which it is attached. True False 39. Skype software allows telephone conversations through a PC and over the Internet instead of a separate phone connection. True False 40. Each IP address is divided into three address classes, which are A, B, and C. Class C addresses are normally owned by large Internet service providers or major corporations. True False 41. New technologies are extending IP addresses beyond computers to TVs, toasters, and coffeemakers. True False 42. Developed to work Internet2, IPv6 increases the IP address size from 32 bits to 256 bits to support more levels of the address hierarchy. True False
  • 10. 43. IPv6 supports over 300 trillion trillion trillion addresses. True False 44. Voice over IP is a technology that allows a remote worker to function as if he or she were directly connected to a regular telephone network, even while at home or in a remote office. True False 45. Skype users can call to any non-computer-based landline or mobile telephone in the world for just pennies a minute. True False 46. "Bandwidth" is typically measured in characters per second (CPS). True False 47. Narrow-band channels typically use microwave, fiber optics, or satellite transmission. True False 48. Frame relay technology is slower than X.25 and not as well suited to handle the heavy communications traffic of interconnected local area networks. True False 49. Although we tend to think of the FCC as the oversight body for radio and television, it is equally involved in all aspects of data and voice communications. True False 50. Regular telephone service relies on Packet Switching, while the Internet relies on Circuit Switching. True False 51. Packet Switching involves dividing a message into multiple packets which are transmitted over a network to the receiver. True False
  • 11. 52. The Internet is owned by the government of the United States. True False 53. Telecommunications and network technologies are internetworking and revolutionizing _______________. A. business and society B. business and globalization C. society and politics D. globalization and politics 54. Which of the following statements best defines a network? A. The usefulness or utility that comes from linking computers together B. An interrelated or interconnected chain, group, or system C. Computers linked together via cabling or wireless technology D. A group of individuals linked via hardware and software 55. A network with 100 nodes has 9,900 possible connections. A network with 1,000 nodes has _______________ possible connections. A. 9,900,000 B. 999,000 C. 99,000 D. over one million 56. Metcalfe's law states that: A. The usefulness or utility of a network equals the square of the number of users B. More network nodes equals more usefulness to network members C. Networks with too many nodes rapidly lose their effectiveness D. The usefulness or utility of a network equals the number of users times the number of nodes 57. Open systems are a recent telecommunications trend. Open systems: A. Use common standards for hardware, software, applications, and networking B. Create a computing environment that is easily accessed by end users and their networked computer systems C. Provide greater connectivity, and a high degree of network interoperability D. All of the choices are correct.
  • 12. 58. Programming that serves to "glue together" or mediate between two separate, and usually already existing, programs is known as _______________. A. front-line software B. software handshaking C. middleware D. back-line software 59. Local and global telecommunications networks are rapidly converting to digital transmission technologies. Digital technology provides all of the following benefits over analog technology except: A. Much lower error rates B. Equivalent transmission speeds C. Movement of larger amounts of information D. Greater economy 60. Telecommunications networks now play vital and pervasive roles in Web-enabled _______________. A. e-business processes B. electronic commerce C. enterprise collaboration D. All of the choices are correct. 61. Which of the following statements regarding Internet2 is true? A. Internet2, like the first Internet, is open to all users B. Internet2 uses the same infrastructure as the current Internet, so it will be easy to learn C. The purpose of Internet2 is to build a roadmap that can be followed during the next stage of innovation for the current Internet D. Internet2 will someday replace the original Internet 62. Most of the institutions and commercial partners on the Internet2 network are connected via _______________, a network backbone that will soon support throughput of 10 Gbps. A. Abilene B. Phoenix C. Enterprise D. Indiana
  • 13. 63. Traveling salespeople and those at regional sales offices can use the Internet, extranets, and other networks to transmit customer orders from their laptop or desktop PCs, thus breaking _______________ barriers. A. physical B. competition C. structural D. geographic 64. Telecommunications-based business applications can help a company overcome all of the following barriers to business success except: A. Time barriers B. Geographic barriers C. Human resource barriers D. Cost barriers 65. All of the following statements about the Internet revolution are true except: A. The Internet has become the largest and most important network today, and has evolved into a global information superhighway B. The central computer system of the Internet is the most powerful communications center in the world C. The Internet is constantly expanding, as more and more businesses and other organizations join its global web D. The Internet does not have a headquarters or governing body 66. Which of the following statements regarding Internet Service Providers is correct? A. ISPs provide individuals and organizations with access to the Internet for a fee B. ISPs are independent organizations; they have no connection to one another C. ISPs are no longer necessary for access to the Internet D. ISPs provide an indirect connection between a company's networks and the Internet 67. ISPs are connected to one another through network _______________. A. touch points B. portals C. access points D. hubs 68. Which of the following is a key business use of the Internet? A. Internet websites for interactive marketing and electronic commerce B. E-mail, file transfer, and discussion forums C. Intranet links with remote employee sites D. All of the choices are correct.
  • 14. 69. Applications that use the Internet and Internet-based technologies are typically less expensive to _______________ than traditional systems. A. develop B. operate C. maintain D. All of the choices are correct. 70. Most companies are building e-business and e-commerce websites to achieve all of the following goals except: A. Generate new revenue from online sales B. Increase foot traffic at brick and mortar locations C. Reduce transaction costs D. Increase the loyalty of existing customers via Web customer service and support 71. All of the following would typically be supported by an organization's intranet information portal except: A. Communication and collaboration B. Business operations and management C. Web publishing D. Recruitment 72. The comparative _______________ of publishing and accessing multimedia business information internally via intranet websites has been one of the primary reasons for the explosive growth in the use of intranets in business. A. attractiveness B. lower cost C. ease D. All of the choices are correct. 73. Based on the information presented in the text, telecommunications terminals are best described as: A. Any input/output device that uses telecommunications networks to transmit or receive data, including telephones B. Devices that support data transmission and reception between terminals and computers C. Channels over which data are transmitted and received D. Programs that control telecommunications activities and manage the functions of telecommunications networks
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  • 16. 74. The text lists five basic categories of components in a telecommunications network. One of these categories includes telecommunications processors, which: A. Support data transmission and reception between terminals and computers B. Are channels over which data are transmitted and received C. Consist of programs that control telecommunications activities and manage the functions of telecommunications networks D. Include input/output terminals 75. The five basic categories of components in a telecommunications network include: A. Protocols, telecommunications channels, computers, telecommunications control software, and modems B. Terminals, telecommunications processors, telecommunications channels, computers, and telecommunications control software C. Terminals, telecommunications channels, computers, and modems D. Terminals, telecommunications processors, computers, modems, and protocols 76. A network that covers a large geographic distance, such as a state or a country, is considered a _______________ network. A. client/server B. local area C. small area D. wide area 77. Which of the following best describes a local area network? A. A network that covers a large geographic area, such as a city or state B. A network that connects computers within a limited physical area, such as inside a single building C. A network that covers no more than a single state D. A private network that uses the Internet as its main backbone 78. To communicate over a network, each PC usually has a circuit board called a _______________. A. printed circuit card B. modem C. router D. network interface card
  • 17. 79. All of the following statements about a virtual private network are correct except: A. Uses the Internet as its main backbone network B. Connects the intranets of a company's different locations, or establishes extranet links between a company and its customers, suppliers, and business partners C. Relies on modem, twisted-pair wire, and router technology D. Relies on network firewalls, encryption, and other security features to provide a secure network 80. All the following describe a VPN except: A. A VPN uses the Internet as its main backbone network. B. A VPN relies on network firewalls, encryption, and other Internet and intranet security features. C. A VPN uses the Internet to establish secure intranets between its distant offices and locations. D. A VPN is available for use by anyone with access to the Internet. 81. Older, traditional mainframe-based business information systems are called _______________ systems. A. historical B. standard C. legacy D. application 82. Most Linux distributions are released via BitTorrent to help with _______________ needs. A. security B. bandwidth C. user registration D. file compression 83. In telecommunications networks, twisted-pair wire: A. Is the least commonly used medium B. Facilitates mobile data communication C. Is used for both voice and data transmission D. Is commonly laid on the floors of lakes and oceans 84. A communications medium that consists of one or more central wires surrounded by thick insulation is called _______________ cable. A. coaxial B. fiber optic C. twisted-pair D. packet-transmission
  • 18. 85. Compared to coaxial cable, standard twisted-pair telephone lines: A. Support lower data transmission speeds B. Are virtually the same as coaxial cable in speed and service provided C. Have less interference and distortion because of their insulation D. None of the choices are correct. 86. Fiber optics uses cables consisting of one or more hair-thin filaments of __________ fiber wrapped in a protective jacket. A. glass B. plastic C. ceramic D. nylon 87. Fiber optics is regarded as the communications media of the future, primarily due to its _______________. A. availability B. greater speed and capacity C. lower installation costs D. greater compatibility with existing communications media 88. As it relates to telecommunications media, the problem of the last mile is: A. A low voltage drop at the end of the line B. Tying into older technology C. Finding the money to complete the project D. None of the choices is correct. 89. The Nevada Department of Corrections uses which of the following technologies to distribute and deliver its information? A. Fibre optic cables B. Satellite system C. T1 lines D. All of the choices are correct. 90. Which of the following technologies transmits data at the fastest rate? A. Modem B. Cable modem C. ISDN D. Home satellite
  • 19. 91. An internetworking unit that connects networks with somewhat dissimilar communications aspects is a _______________. A. bridge B. router C. gateway D. hub 92. In a telecommunications network, a hub is a communications processor that: A. Connects two LANS based on the same network standards or protocols B. Connects different communications architectures C. Facilitates port switching D. None of the choices are correct. 93. In a telecommunications network, a gateway is a communications processor that: A. Is used for port switching B. Connects different communications architectures C. Connects two LANS based on the same network standards or protocols D. Connects LANs to Wi-Fi networks 94. In telecommunications networks, multiplexers: A. Convert digital signals to analog and vice versa B. Allow a single communications channel to carry multiple simultaneous data transmissions C. Include bridges, routers, hubs, and gateways, which interconnect a local area network with other local and wide area networks D. Make connections between communications circuits in a network 95. Network management package functions include all of the following except: A. Managing network resources and traffic to avoid congestion B. Providing security C. Informing network administrators of potential problems before they occur D. All of the choices are functions of network management packages. 96. Security is a top concern of network management today, so telecommunications software must provide all of the following except: A. Authentication B. Central processing C. Firewalls D. Encryption
  • 20. 97. A network configuration that consists of a central computer system with a number of smaller computers tied directly to it, but not to each other, is a _______________ network. A. bus B. ring C. central processing D. star 98. Which of the following best describes how star, ring, and bus networks differ? A. Performance and reliability B. Performance, reliability, and cost C. Reliability and cost D. Performance and cost 99. A(n) _______________ is a standard set of rules and procedures for the control of communication in a network. A. amplification B. algorithm C. protocols D. transponders 100. Which one of the following statements regarding a telecommunications network is false? A. A protocol is a standard set of rules and procedures for the control of communications in a network B. The communications control information needed for "handshaking" between terminals and computers is a protocol C. A protocol deals with the control of data transmission/reception in a network D. Protocols are not applicable to hardware, such as cables and modems 101. The _______________ layer in an OSI model provides communications services for end users. A. application B. data link C. network D. transport 102. In an OSI model, the _______________ layer does the routing and forwarding. A. physical B. data link C. network D. application
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