70.
(p. 235)
Based on the information presented in the text, telecommunications terminals are best described
as:
71.
(p. 235)
The text lists five basic categories of components in a telecommunications network. One of these
categories includes telecommunications processors, which:
72.
The five basic categories of components in a telecommunications network include:
73.
(p. 238)
A network that covers a large geographic distance, such as a state or a country, is considered a
_______________ network.
74.
Which of the following best describes a local area network?
75.
To communicate over a network, each PC usually has a circuit board called a _______________.
76.
All of the following statements about a virtual private network are correct except:
77.
All the following describe a VPN except:
78.
(p. 242)
Older, traditional mainframe-based business information systems are called _______________
systems.
79.
Most Linux distributions are released via BitTorrent to help with _______________ needs.
80.
In telecommunications networks, twisted-pair wire:
81.
(p. 266)
A communications medium that consists of one or more central wires surrounded by thick insulation
is called _______________ cable.
82.
Compared to coaxial cable, standard twisted-pair telephone lines:
83.
(p. 246)
Fiber optics uses cables consisting of one or more hair-thin filaments of __________ fiber wrapped in
a protective jacket.
84.
(p. 246)
Fiber optics are regarded as the communications media of the future, primarily due to its
_______________.
85.
As it relates to telecommunications media, the problem of the last mile is:
86.
Which of the following technologies transmits data at the fastest rate?
87.
(p. 252)
An internetworking unit that connects networks with somewhat dissimilar communications aspects is
a _______________.
88.
In a telecommunications network, a hub is a communications processor that:
89.
In a telecommunications network, a gateway is a communications processor that:
90.
In telecommunications networks, multiplexers:
91.
Network management package functions include all of the following except:
92.
(p. 254)
Security is a top concern of network management today, so telecommunications software must
provide all of the following except:
93.
(p. 254)
A network configuration that consists of a central computer system with a number of smaller
computers tied directly to it, but not to each other, is a _______________ network.
94.
Which of the following best describes how star, ring, and bus networks differ?
95.
(p. 255)
A(n) _______________ is a standard set of rules and procedures for the control of communication in a
network.
96.
Which one of the following statements regarding a telecommunications network is false?
97.
The _______________ layer in an OSI model provides communications services for end users.
98.
In an OSI model, the _______________ layer does the routing and forwarding.
99.
(p. 257)
When IP was first standardized, the specification required that each system attached to the Internet be
assigned a unique, _______________ Internet address value.
100.
All of the following statements regarding Internet telephony are correct except:
101.
(p. 260)
Communications channels such as microwave, fiber optics, or satellite transmission that provide high-
speed transmission rates typically use _______________ channels.
102.
(p. 261)
ATM (asynchronous transfer mode) is an emerging high-capacity __________ switching
technology.
103.
(p. 258)
VoIP works by digitizing a voice signal, chopping it into __________, and then sending them over a
company’s computer network or the Internet, much like data or email.
104.
(p. 257)
IPv4, the current Internet addressing protocol, can accommodate about _______________
addresses.
105.
(p. 222)
_______________ systems are information systems that use common standards for hardware,
software, applications, and networking.
106.
(p. 222)
Open systems provide greater _______________. That is, the ability of networked computers and
other devices to easily access and communicate with each other and share information.
107.
Internet2 is all about high-speed telecommunications and infinite _______________.
108.
(p. 225)
We can think of the _______________ as a network made up of millions of smaller, private networks,
each with the ability to operate independent of, or in harmony with, all the other millions of connected
networks.
109.
(p. 232)
Companies can create private secure Internet links between themselves, called _______________
private networks.
110.
(p. 235)
A communications network is any arrangement where a sender transmits a message to a receiver over
a _______________, consisting of some type of medium.
111.
(p. 235)
Devices such as modems, switches, and routers, which support data transmission and reception
between terminals and computers, are known as telecommunications _______________.
112.
(p. 242)
Thin clients provide a browser-based user interface for processing small application programs called
_______________.
113.
(p. 243)
Network computing is sometimes called a _______________ client/server model, because it consists
of thin clients, application servers, and database servers.
114.
(p. 244)
The terms analog and _______________ refer to the methods used to convert information into an
electrical signal so that it can be transmitted or processed.
115.
(p. 244-
If the temperature being measured by an electronic analog thermometer is 83 degrees, the analog
system would put out __________ volts.
116.
(p. 246)
Dense wave division multiplexing (DWDM) can split a strand of glass fiber into _____ channels,
which enables each strand to carry 5 million calls.
117.
(p. 247)
Terrestrial microwave involves earthbound microwave systems that transmit high-speed
_______________ signals in a line-of-sight path between relay stations spaced approximately 30
miles apart.
118.
(p. 248)
All cellular and PCS telephone systems divide a geographic area into small areas, or __________,
typically from one to several square miles in area.
119.
(p. 249)
Smart telephones, pagers, PDAs, and other portable communications devices have become very thin
clients in _______________ networks.
120.
(p. 249)
The WAP standard specifies how Web pages in HTML and XML are translated into a wireless
markup language (WML) by __________ software.
121.
_______________ are the most common type of communications processor.
122.
(p. 251)
A modem converts digital signals into analog frequencies and then back again. This process is known
as modulation and _______________.
123.
(p. 255)
The main idea in OSI is that the process of communication between two endpoints in a
telecommunication network can be divided into _______________.
124.
(p. 257)
The first part of an Internet address identifies the network on which the host resides, while the second
part identifies the particular __________ on the given network.
125.
(p. 260)
Regular telephone service relies on circuit _______________, in which a switch opens a circuit to
establish a link between a sender and receiver. It remains open until the communication session is
completed.
126.
(p. 260)
In the X.25 protocol, packets are _____ characters long, while in frame relay technology they are of
variable length.
ch6 Summary
Category # of Questions
AACSB: Technology 126
Blooms: Knowledge 126
Difficulty: Easy 23
Difficulty: Hard 34
Difficulty: Medium 69
Learning Objective: 1 2
Learning Objective: 10 21
Learning Objective: 11 12
Learning Objective: 12 18
Learning Objective: 13 5
Learning Objective: 2 1
Learning Objective: 3 11
Learning Objective: 4 15
Learning Objective: 5 7
Learning Objective: 6 23
Learning Objective: 7 4
Learning Objective: 8 3
Learning Objective: 9 4
OBrien – Chapter 06 126