Deck 9: Communications and Networks

Question 1

On a network such as the one illustrated in the accompanying figure, some servers perform a specific task and can be placed with other servers to perform multiple tasks. What are these kind of servers call?

A) baseband
B) unique
C) multitasking
D) dedicated

Answer 1

D

Question 2

With which of the following do users type and send short text messages on a smart phone or mobile device?

A) WMS
B) XMS
C) SMS
D) TMS

Answer 2

C

Question 3

Computer communications describes a process in which two or more computers or devices transfer which of the following?

A) data
B) information
C) instructions
D) all of the above

Answer 3

D

Question 4

Which of the following is a wireless network that provides Internet connections to mobile computers and other devices?

A) wi-spot
B) hot link
C) quick spot
D) hot spot

Question 5

Which of the following allows users to send graphics, pictures, video clips, and sound files, as well as short text messages to another smart phone or mobile device?

A) SMS
B) TMS
C) MMS
D) XMS

Question 6

As shown in the accompanying figure, what is the term for a network that covers a large geographic area, such as a city, country, or the world, using a communications channel that combines many types of media?

A) local area network (LAN)
B) metropolitan area network (MAN)
C) wide area network (WAN)
D) variable area network (VAN)

Question 7

For hot spots that charge users, what do access fees average?

A) $3
B) $5
C) $7
D) $10

Question 8

On a network such as the one illustrated in the accompanying figure, what kind of computer controls access to the hardware, software, and other resources on the network and provides a centralized storage area for programs, data, and information?

A) host
B) indexed
C) client
D) master

Question 9

A voice mailbox plays which of the following roles in a voice mail system?

A) storage location on a hard disk
B) input device
C) processor
D) output device

Question 10

In many public locations, people connect wirelessly to the Internet using their mobile computers or devices through which of the following?

A) wi-spot
B) hot link
C) quick spot
D) hot spot

Question 11

Which of the following is a conversation that takes place over the Internet using a telephone connected to a computer, mobile device, or telephone adapter?

A) A chat room
B) A newsgroup
C) VoIP
D) An online meeting

Question 12

On what kind of network, such as that illustrated in the accompanying figure, do one or more computers act as a server and the other computers on the network request services from the server?

A) dedicated
B) client/server
C) integrated
D) indexed

Question 13

Which of the following is a collection of computers and devices connected together via communications devices and transmission media?

A) channel
B) medium
C) network
D) license

Question 14

Some services use which of the following terms to refer separately to the capability of sending video clips?

A) video circuiting
B) video posting
C) video messaging
D) video spotting

Question 15

Cable television lines and telephone lines are two examples of which of the following?

A) sending devices
B) communications channels
C) receiving devices
D) communications devices

Question 16

Which of the following is a coffeehouse or restaurant that provides computers with Internet access to its customers?

A) cybercafé
B) wi-spot
C) baseband
D) quick spot

Question 17

Which of the following is a transmission media on which data, instructions, or information travel?

A) communications route
B) communications channel
C) communications flow
D) communications path

Question 18

The design of computers, devices, and media in a network is categorized as either client/server or peer-to-peer. What is the term used to refer to this characterization?

A) network topology
B) network architecture
C) network standard
D) network protocol

Question 19

Businesses are the primary users of which of the following because this technology provides a means for departments to communicate with each other, suppliers, vendors, and with clients?

A) groupware
B) Web services
C) global positioning systems
D) short message services

Question 20

Which of the following is a software application that helps groups of people work together on projects and share information over a network?

A) Workware
B) Shareware
C) Groupware
D) Teamware

Question 21

Which of the following is a network standard that specifies no central computer or device on the network should control when data can be transmitted?

A) Ethernet
B) Telnet
C) IEEE
D) Gopher

Question 22

Which of the following is a device that provides a central point for cables in a network?

A) hub
B) packet
C) node
D) router

Question 23

Which of the following kinds of modems is a digital modem that sends and receives digital data over the cable television (CATV) network?

A) wireless
B) broadband
C) access
D) baseband

Question 24

For smaller business and home networks, which of the following allows multiple computers to share a single high-speed Internet connection such as through a cable modem or DSL modem?

A) multiplexer
B) router
C) grid
D) baseband modem

Question 25

On a network such as the one illustrated in the accompanying figure, if one node fails, what happens?

A) only that node is affected
B) only the nodes before that node are affected
C) only the nodes after that node are affected
D) all the nodes are affected

Question 26

Which of the following lines is a temporary connection that uses one or more analog telephone lines for communications?

A) DSL
B) dial-up
C) T1
D) T3

Question 27

Many home users are connecting multiple computers and devices together into a system that saves money and provides many conveniences. What is the name for this system?

A) home grid
B) file share
C) residential multiplex
D) home network

Question 28

For best performance of a communications channel, which of the following should be true?

A) bandwidth and latency should be low
B) bandwidth should be low and latency high
C) bandwidth should be high and latency low
D) bandwidth and latency should be high

Question 29

Which of the following defines guidelines that specify the way computers access the medium to which they are attached, the type(s) of medium used, the speeds used on different types of networks, and the type(s) of physical cable and/or the wireless technology used?

A) network metric
B) network index
C) network matrix
D) network standard

Question 30

As shown in the accompanying figure, which of the following kinds of networks is a network topology in which a cable forms a closed loop, with all computers and devices arranged along it?

A) bus
B) star
C) ring
D) variable

Question 31

As illustrated in the accompanying figure, on what kind of network must all of the computers and devices (nodes) on the network connect to a central device?

A) bus network
B) ring network
C) star network
D) token ring network

Question 32

Which of the following is a central communications device that allows computers and devices to transfer data wirelessly among themselves or to transfer data wirelessly to a wired network?

A) wireless link
B) router
C) wireless access point
D) integral point

Question 33

The type of peer-to-peer network shown in the accompanying figure, describes an Internet network on which users connect directly to each other's hard disks and exchange files over the Internet. What is this kind of network called?

A) file
B) P2P
C) print
D) linked

Question 34

Which of the following terms identifies any network based on the 802.11 family of standards?

A) mesh
B) IEEE
C) Wi-Fi
D) FireWire

Question 35

Which of the following is a communications device that connects multiple computers together and transmits data to its correct destination on a network?

A) grid
B) multiplexer
C) baseband modem
D) router

Question 36

Which of the following is true of DSL?

A) It uses a modem that sends digital data and information from a computer to a DSL line.
B) It is much slower than dial-up service.
C) It uses a line that is shared with other users in the neighborhood.
D) all of the above

Question 37

Which of the following is a simple, inexpensive network that typically connects fewer than 10 computers?

A) peer-to-peer network
B) hard network
C) MAN
D) interpolated network

Question 38

Which of the following is true of the installation of a network like the one shown in the accompanying figure?

A) It must span a smaller distance than a bus network, and it is more difficult.
B) It must span a smaller distance than a bus network, but it is easier.
C) It can span a larger distance than a bus network, but it is more difficult.
D) It can span a larger distance than a bus network, and it is easier.

Question 39

Which of the following kinds of devices is any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device?

A) linkage
B) communications
C) dial-up
D) baseband

Question 40

Which of the following is the greatest risk to a bus network?

A) Devices attached or detached at any point on the bus disrupt the rest of the network.
B) Failure of one device usually affects the rest of the network.
C) The bus itself might become inoperable.
D) all of the above

Question 41

COGNITIVE ASSESSMENT What technology do smart phones and other mobile devices use for picture/video messaging?

A) CSC
B) WISP
C) AIM
D) MMS

Question 42

COGNITIVE ASSESSMENT SMS is another term for which type of communication?

A) VoIP
B) RSS
C) text messaging
D) chat rooms

Question 43

Which of the following are radio waves that provide a high-speed signal transmission?

A) Generations
B) Microwaves
C) Fixed access events
D) Indices

Question 44

Which of the following is an earth-based reflective dish that contains the antenna, transceivers, and other equipment necessary for microwave communications?

A) domestic carrier
B) interstellar transport
C) microwave station
D) planetary dish

Question 45

COGNITIVE ASSESSMENT What communications type enables real-time typed conversation among two or more people that takes place on a computer connected to a network?

A) e-mail
B) FTP
C) chat room
D) newsgroup

Question 46

COGNITIVE ASSESSMENT What is a receiving device?

A) a device that initiates an instruction to transmit data, instructions, or information
B) a device that connects to a communications channel
C) a device on which data, instructions, and information travel
D) a device that accepts the transmission of data, instructions, or information

Question 47

Microwave transmission involves sending signals from one microwave station to another. What is this often called?

A) line-of-sight transmission
B) flexed-point wireless
C) out-of-sight transmission
D) fixed wireless

Question 48

COGNITIVE ASSESSMENT What term describes the process in which two or more computers or devices transfer data, instructions, and information?

A) cybering
B) communication
C) channeling
D) connecting

Question 49

The amount of data, instructions, and information that can travel over a communications channel sometimes is called which of the following?

A) broadband
B) latency
C) baseband
D) bandwidth

Question 50

COGNITIVE ASSESSMENT What is the definition of RSS?

A) a specification that enables Web content to be distributed to subscribers
B) a conversation that takes place over the Internet using a telephone
C) Web sites that provide a means for users to share personal information or modify Web site content
D) a real-time meeting between two or more geographically separated people who use a network

Question 51

Which of the following terms is the time it takes a signal to travel from one location to another on a network?

A) Latency
B) Symmetry
C) Frequency
D) Delay register

Question 52

COGNITIVE ASSESSMENT What is a sending device?

A) a device that initiates an instruction to transmit data, instructions, or information
B) a device that connects to a communications channel
C) a device on which data, instructions, and information travel
D) a device that accepts the transmission of data, instructions, or information

Question 53

COGNITIVE ASSESSMENT Your favorite television program solicits votes for its contestants from its audience. What communication technology do you use to cast your vote?

A) CSC
B) WISP
C) AIM
D) MMS

Question 54

Which of the following is true of broadcast radio with regard to physical transmission media?

A) It is slower and more susceptible to noise.
B) It is slower and less susceptible to noise.
C) It is faster and more susceptible to noise.
D) It is faster and less susceptible to noise.

Question 55

Which of the following kinds of cable consists of one or more twisted-pair wires bundled together?

A) Dual
B) Coaxial
C) Twisted-pair
D) Fiber-optic

Question 56

Which of the following is a wireless transmission medium that distributes radio signals through the air over long distances?

A) Mobile transmission
B) Optical resolution
C) Bandless transmission
D) Broadcast radio

Question 57

COGNITIVE ASSESSMENT Which of the following are examples of hot spot technologies?

A) Wi-Fi and ExpressCard
B) WiMAX and Bluetooth
C) MMS and Wi-Fi
D) VoIP and Bluetooth

Question 58

Which of the following kinds of cable consists of a single copper wire surrounded by at least three layers: an insulating material, a woven or braided metal, and a plastic outer coating?

A) Coaxial
B) Integrated
C) Twisted-pair
D) Fiber-optic

Question 59

Which of the following terms is an electrical disturbance that can degrade communications?

A) Latency
B) Noise
C) Coax
D) Hub

Question 60

COGNITIVE ASSESSMENT What is an example of a communications device that connects a communications channel to a sending or receiving device?

A) a network
B) a modem
C) a hub
D) a switch

Question 61

COGNITIVE ASSESSMENT You love to take pictures of your family. What standard do you use to print pictures directly from your camera?

A) USB
B) WBA
C) IBW
D) UWB

Question 62

COGNITIVE ASSESSMENT Which of the following statements best describes a BAN?

A) a network that covers a broad area
B) a network type that is not allowed because of concerns about invasion of privacy
C) a set of wearable or implanted body sensors that turns the body into a human router
D) a device that uses Bluetooth technology to set up a network

Question 63

COGNITIVE ASSESSMENT What does the G in GPS stand for?

A) general
B) geographical
C) graphic
D) global

Question 64

COGNITIVE ASSESSMENT What term describes software the helps people work together on projects and share information over a network?

A) PIM
B) collaborative software
C) groupware
D) conferencing

Question 65

COGNITIVE ASSESSMENT Which of the following statements best describes the Ethernet network standard?

A) no central computer or device on the network should control when data can be transmitted
B) describes rules for dividing messages into small pieces, called packets
C) computers and devices on the network share or pass a special signal in an undirectional manner and in a preset order
D) computers on a network cannot communicate unless they share the same form of translation

Question 66

COGNITIVE ASSESSMENT How are standards such as EDI used by businesses?

A) to secure their network
B) to define how data transmits across telephone lines or other means
C) as a service for transferring funds
D) to classify their network cable types in order to connect devices

Question 67

COGNITIVE ASSESSMENT What is another term for an Internet peer-to-peer network?

A) a file sharing network
B) a client/server network
C) a WLAN
D) an interconnected webwork

Question 68

COGNITIVE ASSESSMENT Your school computer library has a network that connects computers and devices within a few small rooms. What type of network does it likely use?

A) LAN
B) WAN
C) MAN
D) VAN

Question 69

COGNITIVE ASSESSMENT What term describes a coffeehouse that provides Internet access to users with mobile computers and devices?

A) a hot coffee spot
B) a Wi-Fi bistro
C) a cybercafe
D) a java joint

Question 70

COGNITIVE ASSESSMENT Which network type connects each computer and device to a central device, such as a hub or a switch?

A) a bus network
B) a ring network
C) a star network
D) a core network

Question 71

COGNITIVE ASSESSMENT Which of the following statements is not true of Wi-Fi?

A) When a Wi-Fi network accesses the Internet, it works in conjunction with the TCP/IP network standard.
B) Wi-Fi sometimes is referred to as wireless Ethernet.
C) Even if two products are Wi-Fi Certified, they must share the same platform in order to communicate.
D) In open or outdoor areas free from interference, computers or devices should be within 300 feet of each other to be able to communicate.

Question 72

COGNITIVE ASSESSMENT What is the definition of a protocol, as it applies to networks?

A) the language used to translate analog signals into digital signals
B) a method for connecting nodes on a network
C) the rules governing acceptable network use by employees or other users
D) a standard that outlines characteristics of how two network devices communicate

Question 73

COGNITIVE ASSESSMENT What is geocaching?

A) a form of outdoor recreation where participants search for containers left by others
B) a navigation system that people use to locate alternate travel routes
C) a service provided by car manufacturers to help unlock cars when owners lose their keys
D) a mapping system that capture images of the earth and provides birds-eye views on the Internet

Question 74

COGNITIVE ASSESSMENT Print servers, file servers, and database servers are examples of what type of server?

A) client servers
B) dedicated servers
C) device servers
D) resource servers

Question 75

COGNITIVE ASSESSMENT Which of the following statements is not true of peer-to-peer networks?

A) Each computer has equal responsibilities and capabilities.
B) The network operating system is stored on a network server.
C) They are simple, inexpensive networks that typically connect fewer than 10 computers.
D) Each computer stores files on its own storage device.

Question 76

COGNITIVE ASSESSMENT What is another term for servers that control access to the hardware, software, and other network resources?

A) client computers
B) node computers
C) receiver computers
D) host computers

Question 77

COGNITIVE ASSESSMENT What is the approximate distance most Bluetooth devices can be from each other to communicate, without using additional equipment?

A) 8 feet
B) 33 feet
C) 80 feet
D) 100 feet

Question 78

COGNITIVE ASSESSMENT What is the term for a small version of the Internet that exists within an organization for such purposes as project management and group scheduling?

A) a mininet
B) a businet
C) an extranet
D) an intranet

Question 79

COGNITIVE ASSESSMENT What does EFT stand for?

A) external fee transfer
B) external funds transportation
C) electronic fee transportation
D) electronic funds transfer

Question 80

COGNITIVE ASSESSMENT GoToMeeting and WebEX are examples of what kind of software?

A) conversion
B) collaborative
C) collation
D) co-computing