Test Bank for Data and Computer Communications
10th Edition by William Stallings
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All Chapters Included
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♦️♦️♦️INSTANT DOWNLOAD
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♦️♦️♦️COMPLETE CHAPTERS
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♦️♦️♦️COMPLETE ANSWERS
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CHAPTER 1: DATA COMMUNICATIONS, DATA NETWORKS,
AND THE INTERNET
TRUE OR FALSE
T F 1. Data communications deals with the transmission of signals in a
reliable and efficient manner.
N
T F 2. There are several fundamental differences between data
processing and data communications.
T F 3. There are no fundamental differences among data, voice, and video
U
communications.
T F 4. Effective and efficient data communication and networking
R
facilities are vital to any enterprise.
T F 5. Growth in services and growth in traffic capacity go hand in hand.
SE
T F 6. The increasing use of optical fiber, while greatly increasing
capacity, has caused an increase in transmission prices as well.
T F 7. Convergence refers to the merger of previously distinct telephony
and information technologies and markets.
D
T F 8. Changes in corporate data traffic patterns are driving the creation
of high-speed WANs.
O
T F 9. It is not necessary for a device to interface with the transmission
system in order to communicate.
C
T F 10. A modem is required to establish communication between a
workstation and a server over a public telephone network.
S
T F 11. Compression refers to the ability of a number of devices to share a
transmission facility.
T F 12. The basic building block of any communications facility is the
transmission line.
T F 13. Developing switching systems with the capacity and rapid
response to support the demand requirements with the increased
use of fiber optic transmission is no longer a challenge.
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T F 14. Frame relay networks are commonly used for terminal-to-
computer and computer-to-computer communications.
T F 15. The LAN is owned by the same organization that owns the
attached devices.
MULTIPLE CHOICE
N
1. Enterprises have formed to reach customers, suppliers, and partners
while isolating their proprietary information from unwanted access.
U
A) intranets and extranets B) internets and extranets
C) WANS and extranets D) LANS and WANS
R
2. DWDM enables capacities of per second.
SE
A) terabits B) picobits
C) megabits D) gigabits
D
3. The growth of enhances the ability of employees to take their business
context with them as they move about, resulting in the ability to use enterprise
information resources and services from virtually anywhere.
O
A) extranets B) high-speed wireless access
C) WANS D) remote data access
C
4. An uses Internet and Web technology in an isolated facility internal to
S
an enterprise.
A) application network B) intranet
C) extranet D) Internet portal
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5. A network in which small chunks of data are passed through the network from
node to node, and at each node the entire data chunk is received, stored briefly,
and then transmitted to the next node, is a network.
A) packet switching B) ATM
C) circuit switching D) frame relay
6. A dominant architecture in the business environment and the more recent
Web-focused intranet trend is computing.
N
A) Ethernet B) GUI
U
C) token ring D) client/server
R
7. The rapid conversion of consumer electronics to digital technology is having an
impact on both the Internet and corporate intranets. Two examples of this
trend are .
SE
A) server farms and DVDs
B) power workgroups and server farms
C) DVDs and CD-ROMs
D
D) digital versatile disks and digital still cameras
O
8. The key elements of a simple communications model are .
A) source, transmission, destination
C
B) signal, transmission, receiver
C) source, signal, destination
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D) source, signal, receiver
9. Once an interface is established is required for communication.
A) digital conversion B) signal generation
C) synchronization D) transmission