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Test_Bank_For_Business_Data_Communications_and_Networking,_14th
Chapter 1 hz
Introduction to Data Communications hz hz hz
True-False Questions hz
The following are possible True/False questions for tests. The statement is given and the answer
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is provided in square brackets. The level of difficulty (easy, moderate, difficult) and the pag
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e number(s) relevant to the topic are also furnished.
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1. According to John Chambers, CEO of Cisco (a leading networking technology company), t
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he information age is the second Industrial Revolution.
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Answer:True Difficulty:Easy h
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2. Due to recent advances in high speed communication networks, the information lag, or the ti
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me it takes for information to be disseminated around the world, has been significantly short
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ened.
Answer:True Difficulty: Easy Reference: p.4 h z hzh z
3. One perspective of data communications and networking as stated in the textbook, examines t
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he management of networking technologies, including security, network design, and managin
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g the network on a day-to-day basis and long term basis.
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Answer:True Difficulty: Moderate Reference: p. 5 hz hzh z hz
4. The first electronic data communication system was the telephone developed byAlexander
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Graham Bell. hz
Answer:False Difficulty:Easy Reference: p. 5 h
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5. The first transcontinental telephone service was established in the 1940s.
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Answer:False Difficulty:Easy Reference: p. 6 h
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6. An Inter- hz
Exchange Carrier (IXC) provides only local telephone services to homes and businesses
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.
Answer: False Difficulty: Easy
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7. Common carriers include the RBOCs, IXCs, and Cable TV companies.
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Answer:True Difficulty:Moderate Reference: p. 7 h
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8. The Telecommunications Act of 1996 now permits the RBOCs to provide long distance o
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utside the region in which they provide local telephone services.
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Answer: True Difficulty:Moderate
hz Reference: p. 7 h
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9. The Internet was started by the U.S. Department of defense in 1969 as a network of four co
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mputers calledARPANET. hz z
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Answer: True Difficulty: Moderate
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10. Telecommunications is the transmission of voice and video as well as data and implies tr hz hz hz hz hz hz hz hz hz hz hz hz hz h z
ansmitting a longer distance than in a data communication network.
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Answer:False Difficulty:Moderate h
z Reference: p. 11 hzh z hz
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11. Alocal area network (LAN) connects other LANs and BNs located in different areas to each ot
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her and to wide area networks in a span from 3 to 30 miles.
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Answer: False Difficulty:Moderate hz Reference: p. 13 h
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12. An intranet is a LAN that uses Internet technologies and is publicly available to people o
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utside of the organization. hz hz hz
Answer: False Difficulty:Moderate hz Reference: p. 15 h
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13. A car manufacturer may give access to certain portions of its network to some of its suppliers vi
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a Internet. This is an example of an Extranet.
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Answer: True Difficulty:Moderate Reference: p. 15
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14. The OSI model is the most widely used network model to develop and build networks today.
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Answer: True Difficulty:Moderate hz Reference: p. 16 h
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15. The network layer is responsible for routing messages from the source computer to the d
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estination computer. hz
Answer: True Difficulty:Easy hz Reference: p. 17 h
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16. In the OSI model, the application layer is the end user’s access to the network.
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Answer: True Difficulty:Moderate hz Reference: p. 18 h
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17. The application layer is the seventh layer of the Internet model and provides the end user’s a
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ccess to the network. hz hz hz
Answer: True Difficulty:Moderate hz Reference: p. 18 h
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18. At the transport layer in the Internet model, TCP is responsible for breaking large files received
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from the application layer into smaller packets and opening a connection to a server for transfer
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ring the packets. hz hz
Answer: True Difficulty: Difficult hz hz Reference: p. 17 hzh z hz
19. Ethernet is an example of a network layer protocol. hz hz hz hz hz hz hz hz
Answer: False Difficulty:Easy Reference: p. 17
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20. Data communication standards enable each layer in the sending computer to communicate w
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ith its corresponding layer in the receiving computer.
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Answer: True Difficulty: Easy hz Reference: p. 22 hz hzh z hz
21. The specification stage of the formal standardization process consists of developing n
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omenclature and identifying the problems to be addressed. hz hz hz hz hz hz hz
Answer: True Difficulty: Moderate hz hz Reference: p. 23 hzh z hz
22. ANSI is a voting participant in the ISO. hz hz hz hz hz hz hz
Answer: True Difficulty: Easy hz Reference: p. 23 hz hzh z hz
23. Passive optical networking, a key trend for the future, means that virtually any computer will b
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e able to communicate with any other computer in the world.
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Answer: False hz Difficulty: Moderate hz Reference: p. 26 hz hz
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24. The high bandwidth requirements (high communications needs) for video have slowed its i
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ntegration into computer networks. hz hz hz
Answer: True Difficulty: Moderate
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25. AnApplication Service Provider (ASP) develops a specific system and companies purchase
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or rent the service without installing the system on their own computers.
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Answer: True hz Difficulty: Moderate hz Reference: p. 29 hz hz
MULTIPLE CHOICE hz
The following are possible multiple-
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choice questions for tests. The question is posed and the answer is provided under the choi
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ces. The level of difficulty (easy, moderate, difficult) and the page number(s) relevant to the topi
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c is also furnished.
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1. Data communications and networking can be considered as a global area of study because:
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a. new technologies and applications emerge from a variety of countries and spre
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ad around the world h z hz hz
b. the technologies enable global communication hz hz hz hz
c. the political and regulatory issues are exactly the same in every country
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d. a and b hz hz
e. none of the above hz hz hz
Answer: D Difficulty: Easy
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2. In 1970, a key decision regarding MCI:
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a. set up the Telecommunications Competition and Deregulation Act
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b. permitted MCI to provide limited long distance service in the U.S. hz hz hz hz hz hz hz hz hz hz
c. permitted telephone and/or computer equipment that was not manufactured by Bell hz hz hz hz hz hz hz hz hz hz
Telephone to be connected toAT&T’s network
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d. divided AT&T into two parts: one part for long distance service, and a second part, hz hz hz hz hz hz hz hz hz hz hz hz hz hz h
comprised of seven operating companies, for local telephone service
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e. set up deregulation for international telecommunications markets in 68 countries
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Answer: B Difficulty: Easy
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3. In 1984, a federal judge broke up a highly contested telephone service monopoly and:
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a. set up the Telecommunications Competition and Deregulation Act hz hz hz hz hz hz hz
b. permitted MCI to provide limited long distance service in the U.S. hz hz hz hz hz hz hz hz hz hz
c. permitted telephone and/or computer equipment that was not manufactured b h z h z h z h z h z h z h z h z h z
y Bell Telephone to be connected to AT&T’s network h z hz hz hz hz hz hz hz
d. divided AT&T into two parts: one part for long distance service, and a second hz h z h z h z h z h z h z h z h z h z h z h z h z
part, comprised of seven regional operating companies, for local telephone serv
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ice
e. set up deregulation for international telecommunications markets in 68 countries hz hz hz hz hz hz hz hz hz
Answer: D hz Difficulty: Easy hz Reference: p. 6 hzhz hz