,https://www.stuvia.com/
Chapter1
IntroductiontoDataCommunications s s s
True-False Questions ss
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
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page number(s) relevant to the topic are also furnished.
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1. Accordingto John Chambers, CEO of Cisco(a leading networkingtechnology company),
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the information age is the second Industrial Revolution.
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Answer:True Difficulty:Easy Reference: p. 4 ss
2. Due to recent advances inhigh speed communication networks, the information lag, or
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the time it takes for information to be disseminated around the world, has been
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significantly shortened.
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Answer:True Difficulty: Easy Reference: p.4 s s
3. One perspective of data communications and networkingas statedin thetextbook, examines
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the management of networking technologies, including security, network design, and
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managing the network on a day-to-day basis and long term basis.
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Answer:True Difficulty: Moderate Reference: p. 5 s s ss
4. Thefirst electronic data communication system was thetelephonedeveloped byAlexander
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Graham Bell.
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Answer:False Difficulty:Easy Reference: p. 5 ss
5. The first transcontinental telephone service was established in the 1940s.
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Answer:False Difficulty:Easy Reference: p. 6 ss
6. An Inter-Exchange Carrier (IXC) provides onlylocal telephoneservices tohomes and
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businesses.
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Answer: False Difficulty: Easy ss Reference: s s p. 6 ss
7. Common carriers include the RBOCs, IXCs, and Cable TV companies.
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Answer:True Difficulty:Moderate Reference: p. 7 ss
8. TheTelecommunications Act of 1996 nowpermits the RBOCs toprovide longdistance jj ss ss s ss s ss ss
outside the region in which they provide local telephone services.
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Answer: True Difficulty:Moderate
ss Reference: p. 7 ss
9. The Internet was started bythe U.S. Department of defense in 1969 as a network of four
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computers called ARPANET.
ss ss ss
Answer: True Difficulty: Moderate
ss Reference: p. 9 s s ss
10. Telecommunications is the transmissionof voiceand videoas well as data and implies ss ss s ss ss ss ss ss s ss
transmitting a longer distance than in a data communication network.
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Answer:False Difficulty:Moderate Reference: p.
,https://www.stuvia.com/
11. Alocalareanetwork(LAN) connects other LANs and BNs located in different areas to each
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other and to wide area networks in a span from 3 to 30 miles.
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Answer: False Difficulty:Moderate
ss Reference: p. 13 ss
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 ss Reference: p. 15 ss
13. Acar manufacturer may give access to certain portions of its network to some of its suppliers
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via Internet. This is an example of an Extranet.
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Answer: True Difficulty:Moderate ss Reference: p. 15 ss
14. TheOSI model is the most widelyused network model to develop and build networks today.
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Answer: True Difficulty:Moderate ss Reference: p. 16 ss
15. The network layer is responsible for routing messages fromthesourcecomputer to the
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destination computer.
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Answer: True Difficulty:Easy ss Reference: p. 17ss
16. In the OSI model, the application layer is the end user‟s access to the network.
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Answer: True Difficulty:Moderatess Reference: p. 18 ss
17. The applicationlayer is theseventh layer of the Internet model and provides theend user‟s
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access to the network.
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Answer: True Difficulty:Moderate
ss Reference: p. 18 ss
18. At the transport layer in the Internet model, TCP is responsible for breaking large
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files received from the application layer into smaller packets and opening a connection to a
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server for transferring the packets.
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Answer: True Difficulty: Difficult
ss ss Reference: p. 17ss
19. Ethernet is an example of a network layer protocol.
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Answer: False Difficulty:Easy ss Reference: p. 17ss
20. Data communication standards enableeachlayer in thesendingcomputer
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tocommunicate with its corresponding layer in the receiving computer.
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Answer: True Difficulty: Easy ss Reference: ss p. 22ss
21. The specification stageoftheformal standardization process
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consistsofdeveloping nomenclature and identifying the problems to be
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addressed.
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Answer: True Difficulty: Moderate
ss ss Reference: p. 23ss
22. ANSI is a voting participant in the ISO.
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Answer: True Difficulty: Easy ss Reference: p. 23 ss ss
23. Passive optical networking, a keytrendfor the future, means that virtuallyanycomputer will
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be able to communicate with any other computer in the world.
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Answer: False ss Difficulty: Moderate ss Reference: p. 26 ss ss
,https://www.stuvia.com/
24. The high bandwidth requirements (highcommunications needs) for video have slowed its
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integration into computer networks.
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Answer: True Difficulty: Moderate
ss Reference: p. 28 ss ss ss
25. AnApplicationService Provider (ASP) develops aspecificsystem and companies purchase or
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rent the service without installing the system on their own computers.
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Answer: True ss Difficulty: Moderate ss Reference: p. 29 ss ss
MULTIPLECHOICE
The following are possible multiple-choice questions for tests. The question is posed and the
ss ss ss ss ss ss ss ss ss ss ss ss ss
answer is provided under the choices. The level of difficulty (easy, moderate, difficult) and
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
the page number(s) relevant to the topic is also furnished.
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1. Datacommunications and networking can be considered as a global area of studybecause: ss ss ss ss ss ss ss ss ss ss ss
a. new technologies and applications emerge from a
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of countries and spread around the world
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b. thetechnologies enableglobal communication
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c. the political and regulatoryissues are exactly the same in everycountry
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d. a and b ss ss
e. none of the above ss ss ss
Answer: D Difficulty: Easy
ss Reference: p. 4 ss ss
2. In 1970, a key decision regarding MCI:
ss ss ss ss ss ss
a. setuptheTelecommunications Competitionand DeregulationAct ss ss
b. permitted MCI to provide limited long distance service in the U.S. ss ss ss ss ss ss ss ss ss ss
c. permitted telephone and/or computer equipment that was not manufactured byss ss ss ss ss ss ss ss ss
Bell Telephone to be connected to AT&T‟s network
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d. divided AT&T into two parts: one part for long distance service, and a second
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part, comprised of seven operating companies, for local telephone service
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e. setup deregulation for international telecommunications markets in 68countries
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Answer: B ss Difficulty: Easy Reference: p. 6 ss ss
3. In 1984, a ss federal judge broke up a highlycontested telephone service monopoly and:
ss ss ss ss ss ss ss ss ss ss ss
a. setuptheTelecommunications Competitionand DeregulationAct ss ss
b. permitted MCI to provide limited long distance service in the U.S. ss ss ss ss ss ss ss ss ss ss
c. permitted telephone and/or computer equipment that was not manufactured by ss ss ss ss ss ss ss ss ss
Bell Telephone to be connected to AT&T‟s network
ss ss ss ss ss ss ss ss
d. divided AT&T into two parts: one part for long distance service, and a ss ss ss ss ss ss ss ss ss ss ss ss
second part, comprised of seven regional operating companies, for local
ss ss ss ss ss ss ss ss ss ss
telephone service ss ss
e. setup deregulation for international telecommunications markets in 68countries
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Answer: D ss Difficulty: Easy ss Reference: p.
Chapter1
IntroductiontoDataCommunications s s s
True-False Questions ss
The following are possible True/False questions for tests. The statement is given and the answer
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
is provided in square brackets. The level of difficulty (easy, moderate, difficult) and the
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
page number(s) relevant to the topic are also furnished.
ss ss ss ss ss ss ss ss ss
1. Accordingto John Chambers, CEO of Cisco(a leading networkingtechnology company),
ss ss ss ss ss ss ss ss
the information age is the second Industrial Revolution.
ss ss ss ss ss ss ss ss
Answer:True Difficulty:Easy Reference: p. 4 ss
2. Due to recent advances inhigh speed communication networks, the information lag, or
ss ss ss ss ss ss ss ss ss ss ss
the time it takes for information to be disseminated around the world, has been
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
significantly shortened.
ss ss
Answer:True Difficulty: Easy Reference: p.4 s s
3. One perspective of data communications and networkingas statedin thetextbook, examines
ss ss ss jj ss ss ss s ss s s
the management of networking technologies, including security, network design, and
ss ss ss ss ss ss ss ss ss ss
managing the network on a day-to-day basis and long term basis.
ss ss ss ss ss ss ss ss ss ss ss
Answer:True Difficulty: Moderate Reference: p. 5 s s ss
4. Thefirst electronic data communication system was thetelephonedeveloped byAlexander
ss ss s ss s ss s s ss
Graham Bell.
ss ss
Answer:False Difficulty:Easy Reference: p. 5 ss
5. The first transcontinental telephone service was established in the 1940s.
ss ss ss ss ss ss ss ss ss
Answer:False Difficulty:Easy Reference: p. 6 ss
6. An Inter-Exchange Carrier (IXC) provides onlylocal telephoneservices tohomes and
ss ss ss ss s ss ss ss
businesses.
ss
Answer: False Difficulty: Easy ss Reference: s s p. 6 ss
7. Common carriers include the RBOCs, IXCs, and Cable TV companies.
ss ss ss ss ss ss ss s s
Answer:True Difficulty:Moderate Reference: p. 7 ss
8. TheTelecommunications Act of 1996 nowpermits the RBOCs toprovide longdistance jj ss ss s ss s ss ss
outside the region in which they provide local telephone services.
ss ss ss ss ss ss ss ss ss ss
Answer: True Difficulty:Moderate
ss Reference: p. 7 ss
9. The Internet was started bythe U.S. Department of defense in 1969 as a network of four
ss ss ss ss ss ss ss ss ss ss s ss ss ss ss
computers called ARPANET.
ss ss ss
Answer: True Difficulty: Moderate
ss Reference: p. 9 s s ss
10. Telecommunications is the transmissionof voiceand videoas well as data and implies ss ss s ss ss ss ss ss s ss
transmitting a longer distance than in a data communication network.
ss ss ss ss ss ss ss ss ss ss
Answer:False Difficulty:Moderate Reference: p.
,https://www.stuvia.com/
11. Alocalareanetwork(LAN) connects other LANs and BNs located in different areas to each
s s ss ss ss ss ss ss ss ss ss ss ss
other and to wide area networks in a span from 3 to 30 miles.
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
Answer: False Difficulty:Moderate
ss Reference: p. 13 ss
12. An intranet is a LAN that uses Internet technologies and is publicly available to people
ss ss ss ss ss ss ss ss ss ss ss s s ss
outside of the organization.
ss ss ss ss
Answer: False Difficulty:Moderate ss Reference: p. 15 ss
13. Acar manufacturer may give access to certain portions of its network to some of its suppliers
ss ss ss ss ss ss ss ss ss ss ss s ss ss ss
via Internet. This is an example of an Extranet.
ss ss ss ss ss ss ss ss ss
Answer: True Difficulty:Moderate ss Reference: p. 15 ss
14. TheOSI model is the most widelyused network model to develop and build networks today.
s ss ss ss ss ss s ss ss s ss s ss ss
Answer: True Difficulty:Moderate ss Reference: p. 16 ss
15. The network layer is responsible for routing messages fromthesourcecomputer to the
ss ss ss ss ss ss ss ss ss s
destination computer.
ss ss
Answer: True Difficulty:Easy ss Reference: p. 17ss
16. In the OSI model, the application layer is the end user‟s access to the network.
s ss ss ss ss ss ss ss ss ss ss ss ss ss
Answer: True Difficulty:Moderatess Reference: p. 18 ss
17. The applicationlayer is theseventh layer of the Internet model and provides theend user‟s
ss s ss s ss ss ss s ss ss ss ss ss
access to the network.
ss ss ss ss
Answer: True Difficulty:Moderate
ss Reference: p. 18 ss
18. At the transport layer in the Internet model, TCP is responsible for breaking large
ss ss ss ss ss ss ss ss ss ss ss ss ss
files received from the application layer into smaller packets and opening a connection to a
ss ss ss s ss ss ss s ss ss ss s ss ss ss
server for transferring the packets.
ss ss ss ss ss
Answer: True Difficulty: Difficult
ss ss Reference: p. 17ss
19. Ethernet is an example of a network layer protocol.
ss ss ss ss ss ss s ss
Answer: False Difficulty:Easy ss Reference: p. 17ss
20. Data communication standards enableeachlayer in thesendingcomputer
jj ss ss ss ss
tocommunicate with its corresponding layer in the receiving computer.
ss ss ss ss ss ss ss ss ss
Answer: True Difficulty: Easy ss Reference: ss p. 22ss
21. The specification stageoftheformal standardization process
ss ss ss ss
consistsofdeveloping nomenclature and identifying the problems to be
ss ss ss ss ss ss ss ss
addressed.
ss
Answer: True Difficulty: Moderate
ss ss Reference: p. 23ss
22. ANSI is a voting participant in the ISO.
ss ss ss ss ss ss ss
Answer: True Difficulty: Easy ss Reference: p. 23 ss ss
23. Passive optical networking, a keytrendfor the future, means that virtuallyanycomputer will
ss ss ss ss ss ss ss ss ss ss
be able to communicate with any other computer in the world.
ss ss ss ss ss ss ss ss ss ss ss
Answer: False ss Difficulty: Moderate ss Reference: p. 26 ss ss
,https://www.stuvia.com/
24. The high bandwidth requirements (highcommunications needs) for video have slowed its
s ss ss ss ss ss ss ss ss ss
integration into computer networks.
ss ss ss ss
Answer: True Difficulty: Moderate
ss Reference: p. 28 ss ss ss
25. AnApplicationService Provider (ASP) develops aspecificsystem and companies purchase or
s s ss ss ss s s ss ss ss
rent the service without installing the system on their own computers.
ss ss ss ss ss ss ss ss ss ss ss
Answer: True ss Difficulty: Moderate ss Reference: p. 29 ss ss
MULTIPLECHOICE
The following are possible multiple-choice questions for tests. The question is posed and the
ss ss ss ss ss ss ss ss ss ss ss ss ss
answer is provided under the choices. The level of difficulty (easy, moderate, difficult) and
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
the page number(s) relevant to the topic is also furnished.
ss ss ss ss ss ss ss ss ss ss
1. Datacommunications and networking can be considered as a global area of studybecause: ss ss ss ss ss ss ss ss ss ss ss
a. new technologies and applications emerge from a
s s s s s s s s s s s s s s variety
of countries and spread around the world
s s s s s s ss ss ss ss
b. thetechnologies enableglobal communication
s ss ss
c. the political and regulatoryissues are exactly the same in everycountry
s ss ss ss ss s ss ss ss
d. a and b ss ss
e. none of the above ss ss ss
Answer: D Difficulty: Easy
ss Reference: p. 4 ss ss
2. In 1970, a key decision regarding MCI:
ss ss ss ss ss ss
a. setuptheTelecommunications Competitionand DeregulationAct ss ss
b. permitted MCI to provide limited long distance service in the U.S. ss ss ss ss ss ss ss ss ss ss
c. permitted telephone and/or computer equipment that was not manufactured byss ss ss ss ss ss ss ss ss
Bell Telephone to be connected to AT&T‟s network
ss ss ss ss ss ss ss ss
d. divided AT&T into two parts: one part for long distance service, and a second
ss ss ss ss ss ss ss ss ss ss ss ss ss
part, comprised of seven operating companies, for local telephone service
ss ss ss ss ss ss ss ss ss ss
e. setup deregulation for international telecommunications markets in 68countries
s ss ss s ss ss ss s
Answer: B ss Difficulty: Easy Reference: p. 6 ss ss
3. In 1984, a ss federal judge broke up a highlycontested telephone service monopoly and:
ss ss ss ss ss ss ss ss ss ss ss
a. setuptheTelecommunications Competitionand DeregulationAct ss ss
b. permitted MCI to provide limited long distance service in the U.S. ss ss ss ss ss ss ss ss ss ss
c. permitted telephone and/or computer equipment that was not manufactured by ss ss ss ss ss ss ss ss ss
Bell Telephone to be connected to AT&T‟s network
ss ss ss ss ss ss ss ss
d. divided AT&T into two parts: one part for long distance service, and a ss ss ss ss ss ss ss ss ss ss ss ss
second part, comprised of seven regional operating companies, for local
ss ss ss ss ss ss ss ss ss ss
telephone service ss ss
e. setup deregulation for international telecommunications markets in 68countries
s ss ss s ss ss ss s
Answer: D ss Difficulty: Easy ss Reference: p.
