,Chapter 1:Introduction to Data Communications
ts t s t s t s
True-False Questions ts
Thet following
s are possible True/False questions
t s t s t s t s t s for tests. t Thes t s t s
statement is given and
t s t sthe answer t is s t s t s t s t s t s t s t s t s provided in t s t s t s t s
square t s brackets. t The
s level of t s t s t s t s t s t s t s t s difficulty (easy, ts t s t s
moderate, difficult)
t s and t the s page t s t s t s t s t s t s t s t s t s number(s) relevant t s t s
to the topic are also furnished.
t s t s t s ts t s
1. According to John Chambers, CEO of Cisco (a leading
t s t s t s t s t s t s t s t s t s
networking technology company), the information age is the second
t s ts t s t s t s t s t s t s
Industrial Revolution. t s
Answer:True Difficulty:Easy ts Reference: p. t s 4
2. Due to recent advances in high speed communication networks,
t s t s t s t s t s t s t s t s t s
the information lag, or the
t s time it takes for information to ts t s t s t s t s t s t s t s t s
be disseminated around the world, has been significantly
t s t s t s ts t s t s t s
shortened.
Answer:True Difficulty: Easy Reference: p.4
3. One perspective of data communications and networking as stated in
t s t s t s t s t s t s t s t s t s t s
the textbook, examines the management of networking technologies,
t s ts t s t s t s t s t s
including security, network design, and managing the network on
t s t s t s t s t s t s t s t s
a day-to-day basis and long term basis.
t s t s t s t s ts t s
Answer:True Difficulty: Moderate Reference: p. t s 5
4. The first electronic data communication system was the telephone
t s t s t s t s t s t s t s t s t s
developed by Alexander Graham Bell. t s t s t s
Answer:False Difficulty:Easy ts Reference: p. 5 t s
5. The first transcontinental telephone service
t s t s t s t s t s was t s established in the 1940s. t s t s t s
Answer:False Difficulty:Easy Reference: ts p. t s 6
6. An Inter-Exchange Carrier (IXC) provides only local telephone
t s t s t s t s t s t s t s t s
services to homes and businesses. t s t s t s
Answer: t s False Difficulty: Easy t s t s Reference: p. t s t s t s t s 6
7. Common t s carriers t s include the RBOCs, IXCs, t s t s t s t s and t s Cable TV companies. t s t s
Answer:True Difficulty:Moderate Reference: ts t s t s t s p.t s 7
8. The Telecommunications Act of 1996 now permits the RBOCs to
t s t s t s t s t s t s t s t s t s t s
provide long distance outside the region in which they provide local
ts ts t s ts t s ts ts t s ts ts t s
telephone services. ts
Answer: True t s Difficulty:Moderate Reference: ts t s t s t s p. t s 7
9. The Internet was t s t s t s started by the U.S. Department of t s t s t s t s t s t s
defense in 1969 t s t s t s as a network of four computers called
t s ts t s t s t s ts
ARPANET.
Answer: True Difficulty: Moderate
t s Reference: t s t s t s t s t s p.t s 9
10. Telecommunications is the transmission of voice and video as t s t s t s t s t s t s t s t s t s
well as data and implies
t s transmitting a longer distance than in
t s ts t s t s t s t s t s t s t s t s t s
a data communication network.
t s t s ts
,Answer:False Difficulty:Moderate
ts Reference: t s t s t s p.
t s 11
, 11. A local area network (LAN) connects other LANs and BNs
ts t s t s t s t s t s t s t s t s t s
located in different areas to each other and to wide area
t s t s ts t s t s t s t s t s t s t s
networks in a span from 3 to 30 miles. t s t s t s t s t s t s t s ts
Answer: False Difficulty:Moderate
t s Reference: ts p. t s 13
12. An intranet is a LAN that uses Internet technologies
t s t s t s t s t s t s t s t s t s
and is publicly available to people outside of the
t s t s ts t s t s t s t s t s
organization.
Answer: False Difficulty:Moderate
t s Reference: ts p. t s 15
13. A car manufacturer may give access to certain portions of
t s t s t s t s t s t s t s t s t s t s
its network to some of its suppliers
t s via Internet. This is t s t s ts t s t s t s t s t s t s an t s
example of an Extranet. t s t s t s
Answer: True Difficulty:Moderate
t s ts Reference: p. t s 15
14. The OSI model is the most widely
t s t s t s t s t s t s t s used t s network model t s t s tot s
develop and build networks today. t s t s ts t s
Answer: True Difficulty:Moderate
t s Reference: ts p. t s 16
15. The network layer is responsible for routing messages
t s t s t s t s t s t s t s t s
from the source computer to the
t s destination computer.
t s ts t s t s t s
Answer: t s True Difficulty: Easy ts Reference: p. 17 t s
16. In t s the OSI
t s t s model, t s the t s application layer t s t s is t s the t s end t s user‟s access to t s t s t s
the network. t s
Answer: True Difficulty:Moderate
t s Reference: ts p. t s 18
17. The application layer is the seventh layer of the Internet
t s t s t s t s t s t s t s t s t s t s
model and provides the end user‟s access to the network.
t s t s ts t s t s t s t s t s
Answer: True Difficulty:Moderate
t s Reference: ts p. t s 18
18. At the transport layer in the Internet model, TCP is
t s t s t s t s t s t s t s t s t s t s
responsible for breaking large files received from the application
t s t s ts t s t s t s t s t s
layer into smaller packets and opening a connection to a server
t s t s t s t s ts t s t s t s t s t s
for transferring the packets. t s t s t s
Answer: t s True Difficulty: Difficult t s Reference: p. t s 17
19. Ethernet t s is an t s t s example of a network layer t s t s t s t s t s protocol.
Answer: False Difficulty:Easy
t s ts Reference: p. t s 17
20. Data communication standards enable each layer in
t s t s t s t s t s t s t s the sending t s t s
computer to communicate with its corresponding layer
t s ts t s t s t s t s in the t s t s
receiving computer. t s
Answer: True Difficulty: Easy
t s Reference: t s p. t s 22
21. The specification stage of the formal standardization process
t s t s t s t s t s t s t s t s
consists of developing nomenclature and identifying the
t s t s t s t s t s t s
problems to be addressed. t s t s t s
Answer: True t s Difficulty: Moderate t s Reference: p. t s 23
22. ANSI is a voting t s t s t s t s participant in the ISO. t s t s t s
Answer: True Difficulty: Easyt s t s Reference: p. t s 23
23. Passive optical networking, a key trend for
t s t s t s t s t s t s t s the future, means
t s t s t s
that virtually any computer will
t s be able to t s ts t s t s t s t s communicate with t s t s
ts t s t s t s
True-False Questions ts
Thet following
s are possible True/False questions
t s t s t s t s t s for tests. t Thes t s t s
statement is given and
t s t sthe answer t is s t s t s t s t s t s t s t s t s provided in t s t s t s t s
square t s brackets. t The
s level of t s t s t s t s t s t s t s t s difficulty (easy, ts t s t s
moderate, difficult)
t s and t the s page t s t s t s t s t s t s t s t s t s number(s) relevant t s t s
to the topic are also furnished.
t s t s t s ts t s
1. According to John Chambers, CEO of Cisco (a leading
t s t s t s t s t s t s t s t s t s
networking technology company), the information age is the second
t s ts t s t s t s t s t s t s
Industrial Revolution. t s
Answer:True Difficulty:Easy ts Reference: p. t s 4
2. Due to recent advances in high speed communication networks,
t s t s t s t s t s t s t s t s t s
the information lag, or the
t s time it takes for information to ts t s t s t s t s t s t s t s t s
be disseminated around the world, has been significantly
t s t s t s ts t s t s t s
shortened.
Answer:True Difficulty: Easy Reference: p.4
3. One perspective of data communications and networking as stated in
t s t s t s t s t s t s t s t s t s t s
the textbook, examines the management of networking technologies,
t s ts t s t s t s t s t s
including security, network design, and managing the network on
t s t s t s t s t s t s t s t s
a day-to-day basis and long term basis.
t s t s t s t s ts t s
Answer:True Difficulty: Moderate Reference: p. t s 5
4. The first electronic data communication system was the telephone
t s t s t s t s t s t s t s t s t s
developed by Alexander Graham Bell. t s t s t s
Answer:False Difficulty:Easy ts Reference: p. 5 t s
5. The first transcontinental telephone service
t s t s t s t s t s was t s established in the 1940s. t s t s t s
Answer:False Difficulty:Easy Reference: ts p. t s 6
6. An Inter-Exchange Carrier (IXC) provides only local telephone
t s t s t s t s t s t s t s t s
services to homes and businesses. t s t s t s
Answer: t s False Difficulty: Easy t s t s Reference: p. t s t s t s t s 6
7. Common t s carriers t s include the RBOCs, IXCs, t s t s t s t s and t s Cable TV companies. t s t s
Answer:True Difficulty:Moderate Reference: ts t s t s t s p.t s 7
8. The Telecommunications Act of 1996 now permits the RBOCs to
t s t s t s t s t s t s t s t s t s t s
provide long distance outside the region in which they provide local
ts ts t s ts t s ts ts t s ts ts t s
telephone services. ts
Answer: True t s Difficulty:Moderate Reference: ts t s t s t s p. t s 7
9. The Internet was t s t s t s started by the U.S. Department of t s t s t s t s t s t s
defense in 1969 t s t s t s as a network of four computers called
t s ts t s t s t s ts
ARPANET.
Answer: True Difficulty: Moderate
t s Reference: t s t s t s t s t s p.t s 9
10. Telecommunications is the transmission of voice and video as t s t s t s t s t s t s t s t s t s
well as data and implies
t s transmitting a longer distance than in
t s ts t s t s t s t s t s t s t s t s t s
a data communication network.
t s t s ts
,Answer:False Difficulty:Moderate
ts Reference: t s t s t s p.
t s 11
, 11. A local area network (LAN) connects other LANs and BNs
ts t s t s t s t s t s t s t s t s t s
located in different areas to each other and to wide area
t s t s ts t s t s t s t s t s t s t s
networks in a span from 3 to 30 miles. t s t s t s t s t s t s t s ts
Answer: False Difficulty:Moderate
t s Reference: ts p. t s 13
12. An intranet is a LAN that uses Internet technologies
t s t s t s t s t s t s t s t s t s
and is publicly available to people outside of the
t s t s ts t s t s t s t s t s
organization.
Answer: False Difficulty:Moderate
t s Reference: ts p. t s 15
13. A car manufacturer may give access to certain portions of
t s t s t s t s t s t s t s t s t s t s
its network to some of its suppliers
t s via Internet. This is t s t s ts t s t s t s t s t s t s an t s
example of an Extranet. t s t s t s
Answer: True Difficulty:Moderate
t s ts Reference: p. t s 15
14. The OSI model is the most widely
t s t s t s t s t s t s t s used t s network model t s t s tot s
develop and build networks today. t s t s ts t s
Answer: True Difficulty:Moderate
t s Reference: ts p. t s 16
15. The network layer is responsible for routing messages
t s t s t s t s t s t s t s t s
from the source computer to the
t s destination computer.
t s ts t s t s t s
Answer: t s True Difficulty: Easy ts Reference: p. 17 t s
16. In t s the OSI
t s t s model, t s the t s application layer t s t s is t s the t s end t s user‟s access to t s t s t s
the network. t s
Answer: True Difficulty:Moderate
t s Reference: ts p. t s 18
17. The application layer is the seventh layer of the Internet
t s t s t s t s t s t s t s t s t s t s
model and provides the end user‟s access to the network.
t s t s ts t s t s t s t s t s
Answer: True Difficulty:Moderate
t s Reference: ts p. t s 18
18. At the transport layer in the Internet model, TCP is
t s t s t s t s t s t s t s t s t s t s
responsible for breaking large files received from the application
t s t s ts t s t s t s t s t s
layer into smaller packets and opening a connection to a server
t s t s t s t s ts t s t s t s t s t s
for transferring the packets. t s t s t s
Answer: t s True Difficulty: Difficult t s Reference: p. t s 17
19. Ethernet t s is an t s t s example of a network layer t s t s t s t s t s protocol.
Answer: False Difficulty:Easy
t s ts Reference: p. t s 17
20. Data communication standards enable each layer in
t s t s t s t s t s t s t s the sending t s t s
computer to communicate with its corresponding layer
t s ts t s t s t s t s in the t s t s
receiving computer. t s
Answer: True Difficulty: Easy
t s Reference: t s p. t s 22
21. The specification stage of the formal standardization process
t s t s t s t s t s t s t s t s
consists of developing nomenclature and identifying the
t s t s t s t s t s t s
problems to be addressed. t s t s t s
Answer: True t s Difficulty: Moderate t s Reference: p. t s 23
22. ANSI is a voting t s t s t s t s participant in the ISO. t s t s t s
Answer: True Difficulty: Easyt s t s Reference: p. t s 23
23. Passive optical networking, a key trend for
t s t s t s t s t s t s t s the future, means
t s t s t s
that virtually any computer will
t s be able to t s ts t s t s t s t s communicate with t s t s
