Managing Information Technology, 7e (Brown)
Chapter 3 Telecommunications and Networking
1) Which of the following is a (are) primary reason(s) for networking an organization’s
computers together?
A) sharing of peripherals such as printers
B) sharing of data
C) enables client/server applications
D) all of the above
2) Which of the following is not a primary function performed by a telecommunications
network?
A) transmission of voice
B) archiving data
C) tracking of out-of-service devices
D) transmission of data
3) Which of the following most accurately describes the conversion function of
telecommunications?
A) checking for errors and putting the communication into a standardized format
B) changing coding system or speed when moving data between devices on the network
C) keeping track of the status of the network
D) choosing the most efficient path for a message to be sent over the Internet
4) Which of the following most accurately describes the routing function of
telecommunications?
A) checking for errors and putting the communication into a standardized format
B) changing coding system or speed when moving data between devices on the network
C) keeping track of the status of the network
D) choosing the most efficient path for a message to be sent over the Internet
5) Which of the following is a term used to describe transmission speed of a network?
A) parity
B) baud
C) MIPS
D) phase
6) When data can be transmitted in both directions on a telecommunications line, but not
simultaneously, the transmission type is referred to as:
A) switched-line.
B) simplex.
C) half-duplex.
D) full-duplex.
7) What is a key characteristic of a dedicated line versus a switched line?
A) requires fiber optic media
B) used only for transactions within a single building
C) provides a direct transmission between sender and receiver
D) all of the above
8) A common transmission medium that consists of a heavy copper wire at the center,
surrounded by insulating material, then a cylindrical conductor, and finally an outer protective
plastic covering is called a:
A) fiber-optic cable.
B) coaxial cable.
C) twisted pair of wires.
D) token ring.
9) Which statement about Wi-Fi is not true?
A) Wi-Fi is a wireless technology for local area networks.
B) Wi-Fi is used in buildings with wired LANs to enable mobile access to the organizational
networks.
C) Wi-Fi networks are replacing WiMAX networks due to their greater speed and geographic
coverage.
D) Wi-Fi networks use a CSMA/CA protocol to avoid message failures.
10) Which of the following is not an advantage of a wireless LAN versus a wired LAN?
A) faster transmission speed and more secure
B) takes planning, but relatively easy to install
C) enables users of mobile devices to connect to a LAN
D) can be used as an overlay network to permit employees to connect their laptops to the
corporate network from anywhere in the building
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11) Which transmission medium requires an unobstructed straight line between the transmitter
and the receiver?
A) coaxial cable
B) twisted pair of wires
C) microwave
D) wireless (as in a LAN)
12) Which of the following is not a characteristic of fiber-optic transmission?
A) faster transmission than twisted pair of wires
B) more secure than other media because it does not emit radiation
C) requires more space than coaxial cable because it has more insulation
D) not affected by power-line surges or electromagnetic interference
13) Which of the following is not a characteristic of a star network topology?
A) costly for small and medium-sized networks
B) relatively easy to identify which cable has failed
C) if central device fails, whole network fails
D) easy to add additional devices
14) Which type of file requires the greatest bandwidth?
A) a Word document page in small font
B) a complex graphic
C) one minute of a voice conversation
D) one minute of a video
15) Which type of technology relies on line-of-sight transmission?
A) Bluetooth
B) satellite
C) WiMAX
D) WiFi
16) Which statement about active RFID tags is not true?
A) They are much more commonly used today than passive tags.
B) They can transmit information continuously, on request, or on a predetermined schedule.
C) They have their own power supply.
D) They are more expensive than passive tags.
17) Which company was the most visible early adopter of using RFID for inventory
management?
A) Cisco Systems
B) Microsoft
C) Walmart
D) Facebook
18) Which statement about Bluetooth is not true?
A) It is named after a Viking queen.
B) It is short-range radio technology built into a microchip.
C) It enables cellular communication with home appliances as well as permitting wireless
communication between a computer and a mouse, keyboard, and printer.
D) Bluetooth technology standards are available free of royalties to any company that wishes to
use them.
19) The term Ethernet is often used as a synonym with which of the following types of local area
networks:
A) token bus network.
B) token ring network.
C) contention bus network.
D) contention ring network.
20) Which statement describes a major difference between a LAN and a WAN?
A) usage by a corporation
B) geographic distance between devices being networked
C) usage of wireless media
D) all of the above
21) The CSMA/CD and CSMA/CA protocols are designed to manage which of the following:
A) low bandwidth.
B) conversion of data from digital to analog.
C) message collisions.
D) passing of token from one device to another.
22) A private, packet-switched network using the public Internet is referred to as a(n):
A) VPN network.
B) SONET network.
C) ISDN network.
D) DDD network.
23) What is a key difference between 4G and 3G networks?
A) 4G is a wireless network, 3G is not.
B) 4G has higher data transmission rates than 3G.
C) AT&T has an exclusive patent on 4G, but not 3G.
D) 4G networks support smartphones, but 3G networks do not.
24) Which of the following statements about network topologies is not true?
A) A bus topology can be thought of as a simple “linear” topology.
B) A ring topology is wired like a bus, except the ends of the cable are connected.
C) A star topology is like a ring, except the hub is bigger.
D) In a mesh topology, devices are directly connected to two, three, or more other devices in a
seemingly irregular pattern.
25) Which of the following networking hardware devices forwards all messages it receives to all
devices that are connected to it, whether or not the messages need to go there?
A) gateway
B) hub
C) router
D) switch
26) A broadband service offered by telephone companies that uses copper wires already installed
in homes and offices to connect to the Internet is referred to as:
A) DSL.
B) cable modem.
C) T1.
D) VPN.
27) When considering network protocols, why is the multilayer OSI model still important?
A) It provides a conceptual framework for how communication takes place in networks.
B) It is specifically designed for Ethernet transmissions, which are quite common.
C) It describes a protocol that is gradually replacing TCP/IP.
D) It was designed by IBM.
28) Which of the following OSI model layers receives a packet of data from the transport layer
and adds header data to it to identify the route the packet is to take to its destination?
A) physical
B) data link
C) network
D) transport
29) Which of the following network protocols is used on the Internet and has become the de
facto standard protocol for networking around the world?
A) SNA
B) TCP/IP
C) VPN
D) OSI
30) In the United States, the two giants in the telephone industry in the decade of the 2010s are:
A) T-Mobile and Sprint Nextel.
B) Verizon and AT&T.
C) BellSouth and SBC.
D) GTE and Cingular.
31) Conversion of digital to analog signals so that the signals can travel over conventional
telephone lines is accomplished with a device called a modem.
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32) The term modem stands for Modulator of Digital Electronic Messages.
33) Early in the decade of the 2010s, two different technologies–WiMAX and LTE (Long Term
Evolution)–are competing to become the dominant 4G network technology.
34) A Universal Resource Locator (URL) is used to locate packets in a network.
35) By 2004, the number of cell phones in use in the United States was greater than the number
of wired phones in homes.
36) Using an Infrastructure as a Service provider can enable an organization to avoid major
capital investments for network equipment as well as computer servers and storage.