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