,https://www.stuvia.com/
Chapter1 ky
Introduction toData Communications ky ky ky
True-False Questions ky
The following are possible True/False questions for tests. The statement is given and the answer is
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provided in square brackets. The level of difficulty (easy, moderate, difficult) and the page number(s)
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
relevant to the topic are also furnished.
ky ky ky ky ky ky ky
1. According to John Chambers, CEO of Cisco (aleading networking technology company), the
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information age is the second Industrial Revolution.
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Answer:True Difficulty:Easy y
k Reference: p. 4 k y ky
2. Due torecent advances inhighspeed communication networks, theinformation lag, or the time
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it takes for information to be disseminated around the world, has been significantly shortened.
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Answer:True Difficulty: Easy Reference: p.4 k y k y
3. One perspective of datacommunications and networking as stated in the textbook, examines the
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management of networking technologies, including security, network design, and managing the
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network on a day-to-day basis and long term basis.
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Answer:True Difficulty: Moderate Reference: p. 5 k y k y ky
4. The first electronic data communication system was thetelephonedeveloped byAlexander
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Graham Bell.
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Answer:False Difficulty:Easy Reference: p. 5 y
k k y ky
5. The first transcontinental telephone service was established inthe 1940s.
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Answer:False Difficulty:Easy Reference: p. 6 y
k k y ky
6. AnInter-Exchange Carrier (IXC) provides onlylocal telephone services tohomes and
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businesses.
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Answer: False Difficulty: Easy k y k y Reference: p. 6 k y ky
7. Common carriers include the RBOCs, IXCs, and Cable TVcompanies. ky ky ky ky ky ky ky ky ky
Answer:True Difficulty:Moderate Reference: p. 7 y
k k y ky
8. TheTelecommunicationsAct of 1996 nowpermits the RBOCs toprovide longdistance
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outside the region in which they provide local telephone services.
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Answer: True Difficulty:Moderate ky Reference: p. 7 y
k k y ky
9. The Internet was started by the U.S. Department of defense in 1969 as a network of four
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computers called ARPANET.
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Answer: True Difficulty: Moderate ky Reference: p. 9 k y k y ky
10. Telecommunications is thetransmission of voiceand video as well as data andimplies ky ky ky ky ky ky ky ky ky ky ky ky ky
transmitting a longer distance than in a data communication network.
ky ky ky ky ky ky ky ky ky ky
Answer:False Difficulty:Moderate y
k Reference: p. 11 k y ky
,https://www.stuvia.com/
11. Alocal area network (LAN) connects other LANs and BNs located in different areas to each other
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and to wide area networks in a span from 3 to 30 miles.
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Answer: False Difficulty:Moderate Reference: p. 13 ky y
k k y ky
12. An intranet is a LAN that uses Internet technologies and is publicly available to people
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outside of the organization.
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Answer: False Difficulty:Moderate Reference: p. 15 ky y
k k y ky
13. Acar manufacturer may give access to certain portions of its network to some of its suppliers via
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Internet. This is an example of an Extranet.
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Answer: True Difficulty:Moderate Reference: p. 15 ky y
k k y ky
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 Reference: p. 16 ky y
k k y ky
15. The network layer is responsible for routing messages from the source computer to the
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destination computer.
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Answer: True Difficulty:Easy Reference: p. 17 ky y
k k y ky
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 Reference: p. 18 ky y
k k y ky
17. The application layer is theseventh layer of theInternet model and provides theend user’s access
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to the network.
ky ky ky
Answer: True Difficulty:Moderate Reference: p. 18 ky y
k k y ky
18. At the transport layer in the Internet model, TCP is responsible for breaking large files received
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
from the application layer into smaller packets and opening a connection to a server for
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
transferring the packets.
ky ky ky
Answer: True Difficulty: Difficult ky ky Reference: p. 17 k y ky
19. Ethernet is an example of a network layer protocol. ky ky ky ky ky ky ky ky
Answer: False Difficulty:Easy Reference: p. 17 ky y
k k y ky
20. Data communication standards enable each layer in thesending computer tocommunicate with
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its corresponding layer in the receiving computer.
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Answer: True Difficulty: Easy Reference: p. 22 ky ky k y ky
21. The specification stageof theformal standardization process consists of developing
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nomenclature and identifying the problems to be addressed.
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Answer: True Difficulty: Moderate ky ky Reference: p. 23 k y ky
22. ANSI is a voting participant in the ISO. ky ky ky ky ky ky ky
Answer: True Difficulty: Easy Reference: p. 23 ky ky k y ky
23. Passive optical networking, akey trend for the future, means that virtually anycomputer will be
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able to communicate with any other computer in the world.
ky ky ky ky ky ky ky ky ky ky
Answer: False ky Difficulty: Moderate ky Reference: p. 26 k y ky
,https://www.stuvia.com/
24. The high bandwidth requirements (high communications needs) for video have slowed its
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integration into computer networks.
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Answer: True Difficulty: Moderate ky Reference: p. 28 ky k y ky
25. AnApplication Service Provider (ASP) develops aspecific system and companies purchase or
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rent the service without installing the system on their own computers.
ky ky ky ky ky ky ky ky ky ky ky
Answer: True ky Difficulty: Moderate ky Reference: p. 29 k y ky
MULTIPLECHOICE ky
The following are possible multiple-choice questions for tests. The question is posed and the answer is
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
provided under the choices. The level of difficulty (easy, moderate, difficult) and the page number(s)
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
relevant to the topic is also furnished.
ky ky ky ky ky ky ky
1. Data communications and networking can be considered as a global area of studybecause:
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a. new technologies and applications emerge from a variety of countries and
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spread around the world
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b. thetechnologies enable global communication ky ky ky ky
c. the political and regulatory issues are exactly the same in everycountry
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d. a and b ky ky
e. none of the above ky ky ky
Answer: D Difficulty: Easy ky Reference: p. 4 ky k y ky
2. In 1970, a key decision regarding MCI:
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a. setup theTelecommunications Competition andDeregulationAct ky ky ky ky ky ky ky
b. permitted MCI to provide limited long distance service in the U.S. ky ky ky ky ky ky ky ky ky ky
c. permitted telephone and/or computer equipment that was not manufactured by Bell ky ky ky ky ky ky ky ky ky ky
Telephone to be connected to AT&T’s networkky ky ky ky ky ky ky
d. divided AT&T into two parts: one part for long distance service, and a second part, ky ky ky ky ky ky ky ky ky ky ky ky ky ky
comprised of seven operating companies, for local telephone service
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e. set up deregulation for international telecommunications markets in 68countries
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Answer: B Difficulty: Easy Reference: p. 6
ky ky k y k y ky
3. In 1984, a federal judge broke up ahighlycontested telephone service monopoly and:
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a. setup theTelecommunications Competition andDeregulationAct ky ky ky ky ky ky ky
b. permitted MCI to provide limited long distance service in the U.S. ky ky ky ky ky ky ky ky ky ky
c. permitted telephone and/or computer equipment that was not manufactured by Bell ky ky ky ky ky ky ky ky ky ky
Telephone to be connected to AT&T’s network ky ky ky ky ky ky ky
d. divided AT&T into two parts: one part for long distance service, and a second part, ky ky ky ky ky ky ky ky ky ky ky ky ky ky
comprised of seven regional operating companies, for local telephone service ky ky ky ky ky ky ky ky ky ky
e. set up deregulation for international telecommunications markets in 68countries ky ky ky ky ky ky ky ky ky
Answer: D ky Difficulty: Easy ky Reference: p. 6 k y ky
Chapter1 ky
Introduction toData Communications ky ky ky
True-False Questions ky
The following are possible True/False questions for tests. The statement is given and the answer is
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
provided in square brackets. The level of difficulty (easy, moderate, difficult) and the page number(s)
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
relevant to the topic are also furnished.
ky ky ky ky ky ky ky
1. According to John Chambers, CEO of Cisco (aleading networking technology company), the
ky ky ky ky ky ky ky ky ky ky ky ky
information age is the second Industrial Revolution.
ky ky ky ky ky ky ky
Answer:True Difficulty:Easy y
k Reference: p. 4 k y ky
2. Due torecent advances inhighspeed communication networks, theinformation lag, or the time
ky ky ky ky ky ky ky ky ky ky ky ky ky ky
it takes for information to be disseminated around the world, has been significantly shortened.
ky ky ky ky ky ky ky ky ky ky ky ky ky ky
Answer:True Difficulty: Easy Reference: p.4 k y k y
3. One perspective of datacommunications and networking as stated in the textbook, examines the
ky ky ky ky ky ky ky ky ky ky ky ky ky
management of networking technologies, including security, network design, and managing the
ky ky ky ky ky ky ky ky ky ky ky
network on a day-to-day basis and long term basis.
ky ky ky ky ky ky ky ky ky
Answer:True Difficulty: Moderate Reference: p. 5 k y k y ky
4. The first electronic data communication system was thetelephonedeveloped byAlexander
ky ky ky ky ky ky ky ky ky ky ky
Graham Bell.
ky ky
Answer:False Difficulty:Easy Reference: p. 5 y
k k y ky
5. The first transcontinental telephone service was established inthe 1940s.
ky ky ky ky ky ky ky ky ky
Answer:False Difficulty:Easy Reference: p. 6 y
k k y ky
6. AnInter-Exchange Carrier (IXC) provides onlylocal telephone services tohomes and
ky ky ky ky ky ky ky ky ky ky ky
businesses.
ky
Answer: False Difficulty: Easy k y k y Reference: p. 6 k y ky
7. Common carriers include the RBOCs, IXCs, and Cable TVcompanies. ky ky ky ky ky ky ky ky ky
Answer:True Difficulty:Moderate Reference: p. 7 y
k k y ky
8. TheTelecommunicationsAct of 1996 nowpermits the RBOCs toprovide longdistance
ky ky ky ky ky ky ky ky ky ky ky ky
outside the region in which they provide local telephone services.
ky ky ky ky ky ky ky ky ky ky
Answer: True Difficulty:Moderate ky Reference: p. 7 y
k k y ky
9. The Internet was started by the U.S. Department of defense in 1969 as a network of four
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
computers called ARPANET.
ky ky ky
Answer: True Difficulty: Moderate ky Reference: p. 9 k y k y ky
10. Telecommunications is thetransmission of voiceand video as well as data andimplies ky ky ky ky ky ky ky ky ky ky ky ky ky
transmitting a longer distance than in a data communication network.
ky ky ky ky ky ky ky ky ky ky
Answer:False Difficulty:Moderate y
k Reference: p. 11 k y ky
,https://www.stuvia.com/
11. Alocal area network (LAN) connects other LANs and BNs located in different areas to each other
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
and to wide area networks in a span from 3 to 30 miles.
ky ky ky ky ky ky ky ky ky ky ky ky ky
Answer: False Difficulty:Moderate Reference: p. 13 ky y
k k y ky
12. An intranet is a LAN that uses Internet technologies and is publicly available to people
ky ky ky ky ky ky ky ky ky ky ky ky ky ky
outside of the organization.
ky ky ky ky
Answer: False Difficulty:Moderate Reference: p. 15 ky y
k k y ky
13. Acar manufacturer may give access to certain portions of its network to some of its suppliers via
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
Internet. This is an example of an Extranet.
ky ky ky ky ky ky ky ky
Answer: True Difficulty:Moderate Reference: p. 15 ky y
k k y ky
14. The OSI model is the most widely used network model to develop and build networks today.
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
Answer: True Difficulty:Moderate Reference: p. 16 ky y
k k y ky
15. The network layer is responsible for routing messages from the source computer to the
ky ky ky ky ky ky ky ky ky ky ky ky ky
destination computer.
ky ky
Answer: True Difficulty:Easy Reference: p. 17 ky y
k k y ky
16. In the OSI model, the application layer is the end user’s access to the network.
ky ky ky ky ky ky ky ky ky ky ky ky ky ky
Answer: True Difficulty:Moderate Reference: p. 18 ky y
k k y ky
17. The application layer is theseventh layer of theInternet model and provides theend user’s access
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
to the network.
ky ky ky
Answer: True Difficulty:Moderate Reference: p. 18 ky y
k k y ky
18. At the transport layer in the Internet model, TCP is responsible for breaking large files received
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
from the application layer into smaller packets and opening a connection to a server for
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
transferring the packets.
ky ky ky
Answer: True Difficulty: Difficult ky ky Reference: p. 17 k y ky
19. Ethernet is an example of a network layer protocol. ky ky ky ky ky ky ky ky
Answer: False Difficulty:Easy Reference: p. 17 ky y
k k y ky
20. Data communication standards enable each layer in thesending computer tocommunicate with
ky ky ky ky ky ky ky ky ky ky ky ky
its corresponding layer in the receiving computer.
ky ky ky ky ky ky ky
Answer: True Difficulty: Easy Reference: p. 22 ky ky k y ky
21. The specification stageof theformal standardization process consists of developing
ky ky ky ky ky ky ky ky ky ky
nomenclature and identifying the problems to be addressed.
ky ky ky ky ky ky ky ky
Answer: True Difficulty: Moderate ky ky Reference: p. 23 k y ky
22. ANSI is a voting participant in the ISO. ky ky ky ky ky ky ky
Answer: True Difficulty: Easy Reference: p. 23 ky ky k y ky
23. Passive optical networking, akey trend for the future, means that virtually anycomputer will be
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
able to communicate with any other computer in the world.
ky ky ky ky ky ky ky ky ky ky
Answer: False ky Difficulty: Moderate ky Reference: p. 26 k y ky
,https://www.stuvia.com/
24. The high bandwidth requirements (high communications needs) for video have slowed its
ky ky ky ky ky ky ky ky ky ky ky
integration into computer networks.
ky ky ky ky
Answer: True Difficulty: Moderate ky Reference: p. 28 ky k y ky
25. AnApplication Service Provider (ASP) develops aspecific system and companies purchase or
ky ky ky ky ky ky ky ky ky ky ky ky
rent the service without installing the system on their own computers.
ky ky ky ky ky ky ky ky ky ky ky
Answer: True ky Difficulty: Moderate ky Reference: p. 29 k y ky
MULTIPLECHOICE ky
The following are possible multiple-choice questions for tests. The question is posed and the answer is
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
provided under the choices. The level of difficulty (easy, moderate, difficult) and the page number(s)
ky ky ky ky ky ky ky ky ky ky ky ky ky ky ky
relevant to the topic is also furnished.
ky ky ky ky ky ky ky
1. Data communications and networking can be considered as a global area of studybecause:
ky ky ky ky ky ky ky ky ky ky ky ky ky
a. new technologies and applications emerge from a variety of countries and
k y k y k y k y k y k y k y k y k y k y
spread around the world
k y ky ky ky
b. thetechnologies enable global communication ky ky ky ky
c. the political and regulatory issues are exactly the same in everycountry
ky ky ky ky ky ky ky ky ky ky ky
d. a and b ky ky
e. none of the above ky ky ky
Answer: D Difficulty: Easy ky Reference: p. 4 ky k y ky
2. In 1970, a key decision regarding MCI:
ky ky ky ky ky ky
a. setup theTelecommunications Competition andDeregulationAct ky ky ky ky ky ky ky
b. permitted MCI to provide limited long distance service in the U.S. ky ky ky ky ky ky ky ky ky ky
c. permitted telephone and/or computer equipment that was not manufactured by Bell ky ky ky ky ky ky ky ky ky ky
Telephone to be connected to AT&T’s networkky ky ky ky ky ky ky
d. divided AT&T into two parts: one part for long distance service, and a second part, ky ky ky ky ky ky ky ky ky ky ky ky ky ky
comprised of seven operating companies, for local telephone service
ky ky ky ky ky ky ky ky ky
e. set up deregulation for international telecommunications markets in 68countries
ky ky ky ky ky ky ky ky ky
Answer: B Difficulty: Easy Reference: p. 6
ky ky k y k y ky
3. In 1984, a federal judge broke up ahighlycontested telephone service monopoly and:
ky ky ky ky ky ky ky ky ky ky ky ky ky
a. setup theTelecommunications Competition andDeregulationAct ky ky ky ky ky ky ky
b. permitted MCI to provide limited long distance service in the U.S. ky ky ky ky ky ky ky ky ky ky
c. permitted telephone and/or computer equipment that was not manufactured by Bell ky ky ky ky ky ky ky ky ky ky
Telephone to be connected to AT&T’s network ky ky ky ky ky ky ky
d. divided AT&T into two parts: one part for long distance service, and a second part, ky ky ky ky ky ky ky ky ky ky ky ky ky ky
comprised of seven regional operating companies, for local telephone service ky ky ky ky ky ky ky ky ky ky
e. set up deregulation for international telecommunications markets in 68countries ky ky ky ky ky ky ky ky ky
Answer: D ky Difficulty: Easy ky Reference: p. 6 k y ky
