Quiz 14: Module E: Network Basics
Business
Q 1Q 1
A(n)_____ is two or more computers connected so that they can communicate with each other and share information,software,peripheral devices,and/or processing power.
A)OLED
B)computer system
C)network
D)DS3
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Multiple Choice
C Explanation: A computer network is two or more computers connected so that they can communicate with each other and share information,software,peripheral devices,and/or processing power.
Q 2Q 2
Which of the following is a basic principle that applies to all networks,large or small?
A)At least one computer on a network must have a network interface that provides the doorway for all computers for information exchange.
B)One of the computers on the network must act as a connecting device that ties the other computers together.
C)There must be communications media like cables or radio waves connecting network hardware devices.
D)At least one computer on the network must have software supporting the movement of information in and out of the network.
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Multiple Choice
C Explanation: There must be communications media like cables or radio waves connecting network hardware devices.The communications media transport information around the network between computers and the connecting device(s).
Q 3Q 3
Which of the following is NOT typically a component of a home network?
A)An Ethernet network card for each computer on the network
B)Network cables or wireless devices to transmit signals
C)A router that passes messages and information to each computer
D)A computer dedicated to being a database server
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Multiple Choice
D Explanation: A home computer dedicated to being a database server is not an essential requirement on a home network.
Q 4Q 4
A _____ is an expansion card for a desktop computer or a PC card for a notebook computer that connects your computer to a network and provides the doorway for information to flow in and out.
A)network interface card
B)wireless tether
C)storage card
D)flash memory card
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Multiple Choice
Q 5Q 5
Which of the following is the most common type of a network interface card (NIC)?
A)WAP
B)Cat 5
C)Broadband router
D)Ethernet card
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Multiple Choice
Q 6Q 6
An Ethernet card has a(n)_____ jack into which a network or crossover cable can be plugged.
A)BS 6312
B)FireWire
C)RJ-45
D)USB
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Multiple Choice
Q 7Q 7
Which of the following allows you to plug your computer straight into another computer or printer?
A)Coaxial cable
B)Cat2 cable
C)Crossover cable
D)Straight through cable
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Multiple Choice
Q 8Q 8
The _____ cable is a better-constructed version of the phone twisted-pair cable.
A)USB
B)crossover
C)Cat 5
D)optical fiber
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Multiple Choice
Q 9Q 9
Which of the following devices allows a computer to use radio waves to access a network?
A)WAP
B)Cat 5
C)Optical fiber
D)DSL modem
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Multiple Choice
Q 10Q 10
Which of the following devices transmits and receives a bidirectional flow of information through its antenna?
A)Cat 5
B)Dielectric wireless receiver
C)Data server
D)Wireless access point
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Multiple Choice
Q 11Q 11
Can your wireless access point connect to a network the same way wired computers do?
A)Yes,it connects with a cable to the hub or switch
B)Yes,as long as the network hub or switch has an Ethernet card
C)No,not unless the network supports dedicated high speed lines such as T1 or DS3
D)No,it connects through wireless media
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Multiple Choice
Q 12Q 12
If you wanted to wirelessly connect more than one computer to share a cable Internet service in your home,what would you need?
A)A local home-based server
B)Crossover cables
C)A broadband router
D)A multilayer switch
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Multiple Choice
Q 13Q 13
What Windows option do you need to activate to make the files on your computer available to the other computers on your home network?
A)VPN
B)File-sharing
C)Windows firewall
D)Peer-to-peer networking
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Multiple Choice
Q 14Q 14
What network device connects computers together and passes messages by repeating each computer's transmissions only to the intended recipients?
A)Modem
B)Broadband router
C)Switch
D)Hub
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Multiple Choice
Q 15Q 15
What does a switch enable a network to do?
A)Listen to each other's transmissions
B)Repeat messages to other computers so that the messages are not lost
C)Allow computers to have different conversations at the same time
D)Create direct links between separate networks or subnets
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Multiple Choice
Q 16Q 16
Which network device sends information privately over the network?
A)Hub
B)Switch
C)Router
D)Virtual connector
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Multiple Choice
Q 17Q 17
Which network device connects together separate networks of computers?
A)Hubs
B)Switches
C)Routers
D)Virtual connectors
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Multiple Choice
Q 18Q 18
Which network device passes network traffic between smaller subnets of a larger network?
A)A modem
B)WAP
C)A switch
D)A router
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Multiple Choice
Q 19Q 19
While connecting to a larger network,in addition to a router,what network device do you need to plug a computer into?
A)A jammer
B)A repeater
C)A switch
D)A firewall
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Multiple Choice
Q 20Q 20
Which of the following is true of home networks and network components?
A)They do not require a switch.
B)They require at least two routers.
C)They have both a router and a switch.
D)They require a router only if they are wireless.
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Multiple Choice
Q 21Q 21
Before you can connect a computer with a router to a network,what must you do?
A)Connect the router to a hub.
B)Give each computer the router's address.
C)Give the router the address of each computer on the subnets.
D)Replace all Cat 5 cables with crossover cables.
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Multiple Choice
Q 22Q 22
Which type of network covers a contiguous geographic area,such as a group of buildings in close proximity to each other?
A)MAN
B)LAN
C)WAN
D)VPN
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Multiple Choice
Q 23Q 23
Which type of network covers a large geographic distance,such as a state,a country,or even the entire world?
A)WAN
B)MAN
C)VPN
D)LAN
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Multiple Choice
Q 24Q 24
Which type of network requires an organization to use some sort of commercial communications provider?
A)WLAN
B)WAN
C)LAN
D)Intranet
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Multiple Choice
Q 25Q 25
_____ is a set of connected networks all within the same city or metropolitan area,but not in immediate proximity to each other.
A)LAN
B)MAN
C)WAN
D)VPN
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Multiple Choice
Q 26Q 26
What is the difference between the terms internet (lower case i)and Internet (upper case I)?
A)There is no difference,the words are used interchangeably.
B)The term internet is a generic term for a network of networks;Internet refers to the largest internet.
C)The term internet refers to a network external to an organization;Internet refers to internal networks.
D)The term internet refers to a network connected by different organizations;the term Internet refers to the network connected by different individuals.
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Multiple Choice
Q 27Q 27
When a local router on the Internet does not recognize a sender of a message as being attached to one of its LAN,MAN,or WAN connections,it sends the message over the connection to its ____.
A)main server
B)Internet service provider
C)intrusion detection system
D)virtual private network
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Multiple Choice
Q 28Q 28
Computers and routers refer to each other using ____.
A)VPN
B)router IDs
C)network sites
D)IP addresses
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Multiple Choice
Q 29Q 29
Where would a computer look up the site location for a computer it needs to send information to?
A)Yellow Pages
B)VPN directory assistance
C)POP3 server
D)Domain Name System
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Multiple Choice
Q 30Q 30
Which of the following terms refers to the capacity of a communications medium to transfer information in a given amount of time?
A)Bandwidth
B)Transmission size
C)Routing capacity
D)Communication speed
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Multiple Choice
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Q 33Q 33
How many bits would be required to store the word "bit"?
A)One
B)Three
C)Sixteen
D)Twenty-four
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Multiple Choice
Q 34Q 34
How is bandwidth measured?
A)Revolutions per minute (RPM)
B)Megahertz (MHz)
C)Bytes per second (BPS)
D)Bits per second (BPS)
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Multiple Choice
Q 35Q 35
How long would it take to transfer a document containing 125,000 characters using a communications medium with a bandwidth of 2Mbps?
A)Sixty seconds
B)Thirty seconds
C)Half a second
D)One second
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Multiple Choice
Q 36Q 36
What type of Internet connection uses an ordinary telephone line and a modem?
A)DSL
B)Cable modem
C)Dedicated high-speed line
D)Dial-up circuit
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Multiple Choice
Q 37Q 37
Which of the following communications medium is NOT classified as a broadband connection?
A)Dial-up
B)DSL
C)Cable modem
D)Dedicated lines
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Multiple Choice
Q 38Q 38
What communications device connects your computer to a phone line so that you can access another computer or network?
A)Conversion box
B)Modem
C)Transmitter
D)Repeater
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Multiple Choice
Q 39Q 39
What does a modem do?
A)Transmits infrared signals over a communication channel
B)Transmits,receives,and converts analog signals into digital signals
C)Receives and boosts (strengthens)radio signals
D)Enables private transmissions by encrypting your information before sending it to the Internet
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Multiple Choice
Q 40Q 40
Which type of high-speed Internet circuit is generally used by businesses?
A)T1 and DS3
B)Cable
C)Dial-up
D)DSL
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Multiple Choice
Q 41Q 41
Which type of high-speed Internet connection works in a fashion similar to dial-up modems but allows you to use the telephone at the same time you are using the Internet?
A)Cable modem
B)Satellite modem
C)DSL
D)T1 or DS3 lines
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Multiple Choice
Q 42Q 42
Which type of Internet connection is limited to the distance between you and your phone company,generally about 3 miles?
A)Dial-up
B)DSL
C)Cable
D)Satellite
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Multiple Choice
Q 43Q 43
Which type of Internet connection slows down when more customers or computers are using it?
A)Dial-up
B)DSL
C)Cable
D)Dedicated high-speed lines
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Multiple Choice
Q 44Q 44
Which network technology allows you to send voice calls over the Internet and avoid toll charges?
A)Wireless access point
B)Voice over IP
C)Voice access point
D)Bluetooth
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Multiple Choice
Q 45Q 45
Which type of media transmits information over a closed,connected path?
A)Wireless encrypted communications media
B)Wired communications media
C)Wireless unsecured communications media
D)Satellite transmission media
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Multiple Choice
Q 46Q 46
Which of the following is an example of a wired communications medium?
A)Infrared
B)Microwave
C)Optical fiber
D)Satellite
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Multiple Choice
Q 47Q 47
Which of the following is an example of a wireless communications medium?
A)Twisted-pair cable
B)Infrared
C)Coaxial cable
D)Optical fiber
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Multiple Choice
Q 48Q 48
What type of twisted-pair cabling provides a slow,reliable path for information at up to 10 Mbps?
A)Cat 3
B)Cat 2
C)Cat 1
D)Cat 1a
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Multiple Choice
Q 49Q 49
Which of the following is the most widely used category of twisted-pair cabling systems for data transfer in today's LANs?
A)Cat 5
B)Cat 4
C)Cat 3
D)Cat 3b
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Multiple Choice
Q 50Q 50
Which of the following types of cabling has one central wire surrounded by insulation,a metallic shield,and a final case of insulating material?
A)Cat 1
B)Optical fiber
C)Twisted-pair
D)Coax
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Multiple Choice
Q 51Q 51
Which of the following communications media uses a very thin and flexible glass or plastic fiber through which pulses of light travel?
A)Cat 5
B)Optical fiber
C)Twisted-pair
D)Coax
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Multiple Choice
Q 52Q 52
Which of the following communications media is a type of radio transmission?
A)Cat 3
B)Optical fiber
C)Infrared
D)Microwave
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Multiple Choice
Q 53Q 53
Which of the following communications devices receives a radio signal,strengthens it,and then sends it on?
A)Wi-Fi transmitter
B)Router
C)Repeater
D)Bridge mode
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Multiple Choice
Q 54Q 54
What are repeaters that are located in space called?
A)Wi-Fi hotspots
B)Remote repeaters
C)Cat 5
D)Communication satellites
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Multiple Choice
Q 55Q 55
_____ means that information can be obtained only by those authorized to access it.
A)Confidentiality
B)Authenticity
C)Integrity
D)Availability
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Multiple Choice
Q 56Q 56
Which of the following is a threat posed to the authenticity of information available on a network?
A)Network transmissions that can be captured or monitored by unauthorized individuals
B)Web sites registered at names that are common misspellings of popular sites
C)Network transmissions that can be forged or taken over by unauthorized individuals
D)Poorly written server software that stops working when presented with unusual inputs
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Multiple Choice
Q 57Q 57
A network failure which makes an e-commerce Web site inaccessible is a threat to ____.
A)confidentiality
B)authenticity
C)integrity
D)availability
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Multiple Choice
Q 58Q 58
What software and/or hardware device protects a computer or a network from intruders?
A)Router
B)Firewall
C)Switch
D)Cookie monitor
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Multiple Choice
Q 59Q 59
Which of the following types of network security applications watches the current network traffic,matching it against lists with characteristics of known attacks?
A)Firewall
B)Intrusion prevention system
C)Real-time adaptive security
D)Proxy server
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Multiple Choice
Q 60Q 60
_____ is a security technology that encrypts each network conversation-between one network client and one server-individually.
A)Secure sockets layer
B)Virtual private network
C)Firewall
D)Modulator-demodulator
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Multiple Choice
Q 61Q 61
A(n)_____ uses encryption to protect the confidentiality of all network transmissions between two endpoints.
A)SSL
B)TLS
C)VAN
D)VPN
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Multiple Choice
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Q 63Q 63
In the context of malware,_____ are programs designed to be controlled by an attacker to perform unauthorized work over a period of time.
A)bots
B)unauthorized servers
C)routers
D)repeaters
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Multiple Choice
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True False
Q 65Q 65
A network interface card (NIC)is an expansion card that connects your computer to a network and provides the doorway for information to flow in and out.
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True False
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True False
Q 67Q 67
A wireless access point is a device that allows computers to access a wired network using radio waves.
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True False
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True False
Q 69Q 69
In a small office,a broadband router is often used to connect several computers to a DSL network.
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True False
Q 70Q 70
Information transferred over switches is generally public unless specified by the host computer.
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True False
Q 71Q 71
A switch is a device that connects multiple computers into a network in which multiple communications links can be in operation simultaneously.
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True False
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True False
Q 73Q 73
Home routers that run your Internet connection usually incorporate both a router and a switch in the same box.
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True False
Q 74Q 74
A WAN covers a large geographic distance,such as a state,a country,or even the entire world.
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True False
Q 75Q 75
A MAN covers a contiguous geographic area,such as an office,building,or a group of buildings in close proximity to each other.
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True False
Q 76Q 76
Bandwidth refers to the capacity,or the amount of information,that can be transferred through a communications line in a given time.
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True False
Q 77Q 77
A broadband connection is a high-capacity telecommunications pipeline capable of providing high-speed Internet service.
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True False
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True False
Q 79Q 79
A telephone modem is a device that connects your computer to your phone line so that you can access another computer or network.
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True False
Q 80Q 80
A DS3 is a dedicated high-speed line which runs on a separate circuit and is generally used for business connections.
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True False
Q 81Q 81
You cannot talk on the telephone and surf the Internet simultaneously while using a DSL connection.
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Q 84Q 84
Coaxial cable has one central wire surrounded by insulation,a metallic shield,and a final case of insulating material.
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True False
Q 85Q 85
Infrared is a wireless communications medium that uses light waves to transmit signals or information.
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True False
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Q 88Q 88
Wi-Fi is a wireless communication technology that uses red light to send and receive information.
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True False
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Q 90Q 90
A firewall consists of both software and/or hardware and protects a computer or network from intruders.
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True False
Q 91Q 91
A virtual private network establishes a dedicated network connection between two or more networks.
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True False
Q 92Q 92
A virtual private network uses encryption to protect the confidentiality of all network transmissions between two endpoints.
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True False
Q 93Q 93
A padlock icon on a Web site tells you that information on the Web site is being routed through a VPN.
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True False
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Q 95Q 95
A _____ consists of two or more computers connected so that they can communicate with each other and share information,software,peripheral devices,and/or processing power.
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Q 96Q 96
A _____ must be installed in each computer on the network in order to connect it to a network.
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Q 100Q 100
A _____ is a network device that connects computers and passes messages by repeating each computer's transmissions only to the intended recipient,not to all the connected computers.
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Q 101Q 101
A _____ is a device that passes network traffic between smaller subnetworks of a larger network.
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Q 103Q 103
A network that covers a large geographic area where buildings are not in immediate proximity to each other is called a ____.
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Q 105Q 105
____,or capacity of the communications medium,is the amount of information that a communications medium can transfer in a given amount of time.
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Q 106Q 106
A _____ connection is a high-capacity telecommunications pipeline capable of providing high-speed Internet service.
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Q 107Q 107
_____ is a high-speed Internet connection using phone lines,which allows you to use your phone for voice communications at the same time.
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Q 109Q 109
_____ allows you to send voice communications over the Internet and avoid the toll charges that you would normally receive from your long-distance carrier.
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Q 112Q 112
A _____ has one central wire surrounded by insulation,a metallic shield,and a final case of insulating material.
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Q 114Q 114
_____ communications radiate information into the air,either very narrowly beamed or in many directions.
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Q 118Q 118
_____ is a short-distance wireless communication that is omnidirectional or all directions.
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Q 119Q 119
_____ are used to send large amounts of data to remote locations especially if there are a number of receiving sites.
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Q 121Q 121
Restricting payroll information to only authorized payroll employees is ensuring _____ of the information.
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Q 122Q 122
Fraudulent e-mail messages claiming to be from your bank is an example of a threat to ____.
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