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