,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 is
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provided in square brackets. The level of difficulty (easy, moderate, difficult) and the page
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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 the
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time it takes for information to be disseminated around the world, has been significantly
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shortened.
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Answer:True Difficulty: Easy Reference: p.4 s s
3. One perspective of data communications andnetworkingasstatedinthetextbook,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 datacommunication systemwas thetelephonedeveloped byAlexander
s s s s s s s s s
Graham Bell.
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Answer:False Difficulty:Easy Reference: p. 5 ss
5. The first transcontinental telephone servicewas established inthe 1940s.
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Answer:False Difficulty:Easy Reference: p. 6 ss
6. An Inter-ExchangeCarrier (IXC) providesonlylocal 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 includethe RBOCs, IXCs, and CableTVcompanies.
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Answer:True Difficulty:Moderate Reference: p. 7 ss
8. TheTelecommunications Actof 1996nowpermits theRBOCs toprovidelongdistance jj s ss s ss s ss s
outside the region in which they provide local telephone services.
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Answer: True Difficulty:Moderatess Reference: p. 7 ss
9. The Internet was started bytheU.S.Department ofdefense in 1969as anetwork offour
ss s ss ss s s ss s ss ss s ss s ss s
computers called ARPANET.
ss ss ss
Answer: True Difficulty: Moderate
ss Reference: s s p. 9 ss
10. Telecommunications is thetransmissionof voiceand videoas well as dataand implies ss s s ss s ss ss s s s
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) connectsother LANs andBNs locatedindifferent areas toeach
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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. Anintranet is aLAN that uses Internet technologies and is publiclyavailabletopeople
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outside of the organization.
ss ss ss ss
Answer: False Difficulty:Moderate ss Reference: p. 15 ss
13. Acar manufacturer may give accesstocertainportionsof itsnetwork tosome ofits suppliers via
ss ss ss ss s s s s ss s ss s ss s ss ss
Internet. This is an example of an Extranet.
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Answer: True Difficulty:Moderate ss Reference: p. 15 ss
14. TheOSI model isthe most widelyusednetworkmodel todevelop andbuild 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 tothe
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destination computer.
ss ss
Answer: True Difficulty:Easy ss Reference: p. 17 ss
16. Inthe OSI model, the application layer is the end user‟s access to the network.
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Answer: True Difficulty:Moderate ss Reference: p. 18 ss
17. Theapplicationlayer istheseventhlayer of theInternetmodel andprovidestheend user‟s
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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 files
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receivedfromtheapplicationlayer intosmaller packets andopeningaconnectiontoaserver for
ss s s s s ss s ss ss s s s s s s ss
transferring the packets.
ss ss ss
Answer: True Difficulty: Difficult ss ss Reference: p. 17 ss
19. Ethernetis an example of anetworklayer protocol. s ss ss ss ss s s ss
Answer: False Difficulty:Easy ss Reference: p. 17 ss
20. Data communication standards enableeachlayer in thesendingcomputer tocommunicate
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with its corresponding layer in the receiving computer.
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Answer: True Difficulty: Easy ss Reference: ss p. 22 ss
21. The specification stageoftheformal standardization process consistsofdeveloping
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nomenclature and identifying the problems to be addressed.
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Answer: True Difficulty: Moderate ss ss Reference: p. 23 ss
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, akeytrendfor the future, means that virtuallyanycomputer will be
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able to communicate with any other computer in the world.
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Answer: False ss Difficulty: Moderate ss Reference: p. 26 s s ss
,https://www.stuvia.com/
24. Thehighbandwidthrequirements (highcommunications needs)forvideohaveslowedits
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integration into computer networks.
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Answer: True Difficulty: Moderate
ss Reference: p. 28 ss s s ss
25. AnApplicationServiceProvider (ASP) developsaspecificsystemand 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 s s 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 the
ss ss ss ss ss ss ss ss ss ss ss ss ss ss ss
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 s s s s s s s s s s s s s s variety s s of
countries and spread around the world
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b. thetechnologies enableglobal communication
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c. thepolitical and regulatoryissues are exactlythe same ineverycountry
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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 by Bell ss ss ss ss ss ss ss ss ss ss
Telephone to be connected to AT&T‟s network
ss ss ss ss ss ss ss
d. divided AT&T into two parts: one part for long distance service, and a second part,ss ss ss ss ss ss ss ss ss ss ss ss ss ss
comprised of seven operating companies, for local telephone service
ss ss ss ss ss ss ss ss ss
e. setupderegulationfor internationaltelecommunications markets in68countries
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Answer: B Difficulty: Easy
ss Reference: p. 6 ss ss
3. In 1984, a federal judge broke up a highlycontested telephone service monopoly and:
ss 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 second ss ss ss ss ss ss ss ss ss ss ss ss ss
part, comprised of seven regional operating companies, for local telephone
ss ss ss ss ss ss ss ss ss ss
service ss
e. setupderegulationfor internationaltelecommunications markets in68countries s s ss s ss ss s s
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 is
ss ss ss ss ss ss ss ss ss ss ss ss ss ss ss
provided in square brackets. The level of difficulty (easy, moderate, difficult) and the page
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
number(s) relevant to the topic are also furnished.
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 the
ss ss ss ss ss ss ss ss ss ss ss ss
time it takes for information to be disseminated around the world, has been significantly
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
shortened.
ss
Answer:True Difficulty: Easy Reference: p.4 s s
3. One perspective of data communications andnetworkingasstatedinthetextbook,examines
ss s ss jj ss s s s s 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 datacommunication systemwas thetelephonedeveloped byAlexander
s s s s s s s s s
Graham Bell.
ss ss
Answer:False Difficulty:Easy Reference: p. 5 ss
5. The first transcontinental telephone servicewas established inthe 1940s.
ss ss ss ss s ss ss s ss
Answer:False Difficulty:Easy Reference: p. 6 ss
6. An Inter-ExchangeCarrier (IXC) providesonlylocal telephoneservices tohomes and
s s ss ss s ss ss ss
businesses.
ss
Answer: False Difficulty: Easy ss Reference: s s p. 6 ss
7. Common carriers includethe RBOCs, IXCs, and CableTVcompanies.
ss ss s ss ss ss ss s s
Answer:True Difficulty:Moderate Reference: p. 7 ss
8. TheTelecommunications Actof 1996nowpermits theRBOCs toprovidelongdistance jj s ss s ss s ss s
outside the region in which they provide local telephone services.
ss ss ss ss ss ss ss ss ss ss
Answer: True Difficulty:Moderatess Reference: p. 7 ss
9. The Internet was started bytheU.S.Department ofdefense in 1969as anetwork offour
ss s ss ss s s ss s ss ss s ss s ss s
computers called ARPANET.
ss ss ss
Answer: True Difficulty: Moderate
ss Reference: s s p. 9 ss
10. Telecommunications is thetransmissionof voiceand videoas well as dataand implies ss s s ss s ss ss s s s
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) connectsother LANs andBNs locatedindifferent areas toeach
s s ss s ss ss s ss s s s ss s
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. Anintranet is aLAN that uses Internet technologies and is publiclyavailabletopeople
s ss ss s s s s s s s ss s s s
outside of the organization.
ss ss ss ss
Answer: False Difficulty:Moderate ss Reference: p. 15 ss
13. Acar manufacturer may give accesstocertainportionsof itsnetwork tosome ofits suppliers via
ss ss ss ss s s s s ss s ss s ss s ss ss
Internet. This is an example of an Extranet.
ss ss ss ss ss ss ss ss
Answer: True Difficulty:Moderate ss Reference: p. 15 ss
14. TheOSI model isthe most widelyusednetworkmodel todevelop andbuild networks today.
s ss ss s ss ss s s 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 tothe
ss s ss ss ss ss ss ss ss s
destination computer.
ss ss
Answer: True Difficulty:Easy ss Reference: p. 17 ss
16. Inthe 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:Moderate ss Reference: p. 18 ss
17. Theapplicationlayer istheseventhlayer of theInternetmodel andprovidestheend user‟s
s s ss s s ss ss s s ss s s s
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 files
ss ss ss ss ss ss ss ss ss ss ss ss ss ss
receivedfromtheapplicationlayer intosmaller packets andopeningaconnectiontoaserver for
ss s s s s ss s ss ss s s s s s s ss
transferring the packets.
ss ss ss
Answer: True Difficulty: Difficult ss ss Reference: p. 17 ss
19. Ethernetis an example of anetworklayer protocol. s ss ss ss ss s s ss
Answer: False Difficulty:Easy ss Reference: p. 17 ss
20. Data communication standards enableeachlayer in thesendingcomputer tocommunicate
jj ss ss ss ss ss
with its corresponding layer in the receiving computer.
ss ss ss ss ss ss ss ss
Answer: True Difficulty: Easy ss Reference: ss p. 22 ss
21. The specification stageoftheformal standardization process consistsofdeveloping
ss ss ss ss ss
nomenclature and identifying the problems to be addressed.
ss ss ss ss ss ss ss ss
Answer: True Difficulty: Moderate ss ss Reference: p. 23 ss
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, akeytrendfor the future, means that virtuallyanycomputer will be
ss ss ss s ss ss ss ss ss ss ss
able to communicate with any other computer in the world.
ss ss ss ss ss ss ss ss ss ss
Answer: False ss Difficulty: Moderate ss Reference: p. 26 s s ss
,https://www.stuvia.com/
24. Thehighbandwidthrequirements (highcommunications needs)forvideohaveslowedits
s s s ss s s s s s s
integration into computer networks.
ss ss ss ss
Answer: True Difficulty: Moderate
ss Reference: p. 28 ss s s ss
25. AnApplicationServiceProvider (ASP) developsaspecificsystemand companies purchase or
s s ss s s s s s 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 s s 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 the
ss ss ss ss ss ss ss ss ss ss ss ss ss ss ss
page number(s) relevant to the topic is also furnished.
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 s s of
countries and spread around the world
s s s s ss ss ss ss
b. thetechnologies enableglobal communication
s ss ss
c. thepolitical and regulatoryissues are exactlythe same ineverycountry
s ss ss ss ss s ss ss s
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 by Bell ss ss ss ss ss ss ss ss ss ss
Telephone to be connected to AT&T‟s network
ss ss ss ss ss ss ss
d. divided AT&T into two parts: one part for long distance service, and a second part,ss ss ss ss ss ss ss ss ss ss ss ss ss ss
comprised of seven operating companies, for local telephone service
ss ss ss ss ss ss ss ss ss
e. setupderegulationfor internationaltelecommunications markets in68countries
s s ss s ss ss s s
Answer: B Difficulty: Easy
ss Reference: p. 6 ss ss
3. In 1984, a federal judge broke up a highlycontested telephone service monopoly and:
ss 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 second ss ss ss ss ss ss ss ss ss ss ss ss ss
part, comprised of seven regional operating companies, for local telephone
ss ss ss ss ss ss ss ss ss ss
service ss
e. setupderegulationfor internationaltelecommunications markets in68countries s s ss s ss ss s s
Answer: D ss Difficulty: Easy ss Reference: p.
