Deck 11: Network Basics

Question 1

There are basic principles that apply to a network.Which of the following is not one of these principles?

A)Each computer on a network must have a network interface
B)There is some sort of communication media on the network that connect to all the hardware devices
C)Each computer must have software that supports the movement of information in and out of the computer
D)Each computer is able to have different conversations at the same time with other computers on the network

Answer 1

D

Question 2

Which of the following is not true about a typical home network?

A)Each computer has an Ethernet network car
B)There are network cables or wireless devices to transmit signals
C)The network has a switch that passes messages and information to each computer
D)A DSL cable or cable line connects the network to your ISP

Answer 2

C

Question 3

What device allows a computer to use radio waves to access a network?

A)Wireless access point (WAP)
B)Cat 5
C)Optical fiber
D)DSL modem

Answer 3

A

Question 4

What is another name for a hub?

A)Focal point
B)Share network
C)Network midpoint
D)Router

Question 5

Which device transmits and receives a bidirectional flow of information through its antennas?

A)Cat 5
B)Ethernet access point (EAP)
C)Broadband router
D)Wireless access point (WAP)

Question 6

What is the most common type of network interface card (NIC)?

A)WAP
B)Cat 5
C)Broadband router
D)Ethernet card

Question 7

Which of the following allows you to plug your computer straight into another computer or printer?

A)Ethernet cable
B)Router
C)Crossover cable
D)Hub

Question 8

Which of the following is not a common Internet connection at home?

A)DSL
B)Cable Internet
C)T1 and DS3
D)DSL,cable Internet,T1 and DS3 are common for home computer needs

Question 9

What Windows option do you need to activate so that you can share files on your home network?

A)VPN
B)File-sharing
C)FTP
D)Internet options

Question 10

Which type of cable is similar to a phone or twisted-pair cable?

A)WAP
B)Broadband cable
C)Optical fiber
D)Cat 5

Question 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 you have 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

Question 12

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 or dropped
C)Allow computers to have different conversation at the same time
D)Create direct links between separate networks or subnets

Question 13

What is the most common transmission medium for a home network?

A)Internet Explorer
B)Network switch
C)Broadband router
D)Cat 5 cable

Question 14

There are some problems associated with shared networks.Which of the following is not one of these problems?

A)Information transmitted over hubs isn't private
B)Computers can transmit information simultaneously requiring more bandwidth
C)Computers are interrupted every time a message is sent over the network
D)Hubs have collisions

Question 15

What network device connects computers together and passes messages by repeating all network transmissions to all the other computers?

A)Cat 5
B)Broadband router
C)Switch
D)Hub

Question 16

What is a network interface card (NIC)?

A)A device that allows a computer to use radio waves to access a network
B)A device that connects several computers together to share Internet access
C)An expansion card for a desktop or notebook computer that connects your computer to a network
D)A crossover cable that allows you to plug straight into another computer or printer

Question 17

Which network device connects computers and passes messages by repeating each computer's transmission only to the intended recipient?

A)Hub
B)Broadband router
C)Router
D)Switch

Question 18

What is called when two or more computers are connected so that they can communicate with each other and share resources?

A)Star connection
B)Computer system
C)Network
D)Net

Question 19

If you wanted to connect more than one computer to your home Internet service,what would you need?

A)Hub
B)Switch
C)Broadband router
D)Cat 5

Question 20

If you needed to connect your dorm computer to the campus network,what device would you need?

A)Ethernet card
B)RJ jack
C)WAP
D)Router

Question 21

Which network device passes network traffic between smaller subnets of a larger network?

A)Broadband router
B)WAP
C)Switch
D)Router

Question 22

What type of Internet connection uses ordinary telephone lines and a modem?

A)DSL
B)Cable modem
C)Dedicated high-speed line
D)Dial-up circuits

Question 23

Which of the following communications medium is not classified as a broadband connection?

A)Dial-up
B)DSL
C)Cable modem
D)Dedicated line

Question 24

Which type of network covers a metropolitan area?

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

Question 25

Which of the following is not a high-bandwidth telecommunications line capable of providing high-speed Internet service?

A)DSL
B)Dial-up circuits
C)Cable modems
D)Satellite modems

Question 26

What is bandwidth?

A)The capacity of the communications medium to send information in a given amount of time
B)The number of computers able to send information simultaneously over a network
C)The type of communication device connected to a network
D)The amount of data that can move over the Internet at any given time

Question 27

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

Question 28

Which type of network covers a contiguous geographic area,such as an office,building,or a group of buildings in close proximity to each other?

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

Question 29

Which type of network requires an organization to use some sort of public communications company?

A)MAN
B)WAN
C)LAN
D)MAN,WAN,and LAN requires communications support from public companies

Question 30

Which network device sends information privately over the network?

A)Hub
B)Switch
C)Router
D)Virtual connector

Question 31

Which network device connects together networks of computers?

A)Hubs
B)Switches
C)Routers
D)Virtual connectors

Question 32

How is bandwidth measured?

A)Revolutions per minute (RPM)
B)Transmissions per second (TPS)
C)Bytes per second (BPS)
D)Bits per second (BPS)

Question 33

What communications device do you need to connect your computer to a phone line?

A)Conversion box
B)Modem
C)Transmitter
D)Repeater

Question 34

Which network device creates a stronger network by allowing simultaneous transmissions and minimizing collisions?

A)Hubs
B)Routers
C)Virtual connectors
D)Switches

Question 35

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)The sender would first need to send a routing address to the receiving computer
D)Domain Name Systems (DNS)

Question 36

In addition to a router,what network device do you need to plug a computer into?

A)Broadband connection
B)Hub
C)Switch
D)Hub or a switch

Question 37

Before you can connect a router to a network,what must you do?

A)Connect the router to the Internet
B)Give each computer the router's address
C)Give the router the address of each computer on the subnets
D)Set up wireless access points

Question 38

What is the difference between the terms internet and Internet?

A)There is not difference,the words are used interchangeably
B)The term internet is another term for the World Wide Web (WWW); Internet refers to the network of computers on the WWW
C)The term internet refers to 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 people

Question 39

How do computers and routers know where to find other computers and routers?

A)VPN
B)Router ID
C)Network site
D)IP address

Question 40

What term refers to the capacity of a communications medium to send information?

A)Bandwidth
B)Transmission size
C)Routing capacity
D)Communication speed

Question 41

Which type of communication medium does not use radio waves?

A)Bluetooth
B)WiFi
C)Twisted pair
D)Microwave

Question 42

Which of the following communication mediums is a type of radio transmission?

A)Cat 3
B)Optical fiber
C)Infrared
D)Microwave

Question 43

Which type of media transmits information over a closed,connected path?

A)Communications media
B)Wired communications media
C)Wireless communications media
D)Satellite transmission media

Question 44

Which of the following is a wireless communications medium that uses light waves to transmit signals or information?

A)Cat 3
B)Optical fiber
C)Infrared
D)Microwave

Question 45

Which type of high-speed circuit is used by businesses for their Internet connection?

A)T1 and DS3
B)Cable
C)Satellite
D)Dish

Question 46

Which technology allowed companies to transmit voice over existing Internet connections?

A)T1
B)VoIP
C)VPN
D)T1 and DS3

Question 47

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

Question 48

Which of the following 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

Question 49

How does DSL work?

A)By sending high frequency signals that are inaudible to humans over existing telephone lines
B)By connecting computers with peripheral devices
C)By connecting many home computer devices over one line so that each one can share the Internet connection
D)By transmitting radio signals from one computer device to the Internet connection

Question 50

Which type of high-speed Internet connection works similarly to traditional modems and allows you to use the telephone at the same time you're using the Internet?

A)Dial-up
B)Satellite modem
C)DSL
D)Router

Question 51

Which type of Internet connection slows down when more customers or computers are using it?

A)Dial-up
B)DSL
C)Cable
D)Dial-up,DSL,and Cable all slow up when the number of users in a neighbor increases

Question 52

Which type of high-speed circuit is used by business to create "virtual circuits" connecting multiple offices without having to run physical lines between each office?

A)T1
B)DS3
C)ATM
D)VPN

Question 53

Which type of media represents the paths,or physical channels,in a network over which information travels?

A)Communications media
B)Wired media
C)Wireless media
D)Routers

Question 54

What does a modem do?

A)Transmits infrared signals over a communication channel
B)Transmit,receive and convert digital signals into analog signals
C)Receive and boost (strengthen)radio signals
D)Enables private transmissions by encrypting your information before sending it to the Internet

Question 55

What type of communication medium uses infrared signals?

A)Satellite
B)DSL
C)Wireless communications medium
D)Dial-up

Question 56

Which type of Internet connection allows you to get Internet access from your satellite dish?

A)Cable
B)Satellite
C)DSL
D)Dish

Question 57

What type of communications medium is coaxial cable?

A)Optical fiber
B)Wired communications medium
C)Wireless communications medium
D)DSL channels

Question 58

What type of twisted-pair cabling provides a slow,reliable path for information at up to 10 Mbps?

A)Cat 3
B)Optical fiber
C)Microwave
D)Coax

Question 59

Which of the following uses a very thin glass or plastic fiber through which pulses of light travel?

A)Cat 5
B)Optical fiber
C)Twisted pair
D)Coax

Question 60

Which type of communication media transmits information through the air?

A)Communications media
B)Wired communications media
C)Wireless communications media
D)DSL

Question 61

Which of the following uses software to establish a secure channel on the Internet for transmitting data?

A)Public network
B)Private network
C)VAN
D)VPN

Question 62

A network interface card (NIC)is an expansion card or a PC Card that connects your computer to a network and provides the doorway for information to flow in and out.

Question 63

What term describes a network in which one or more computers are servers and provide services to other computers?

A)Client/server network
B)Peer-to-peer
C)Internet
D)Star network

Question 64

Which of the following replicates and spreads itself?

A)Encryption
B)Worm
C)VoIP
D)Spyware

Question 65

What are repeaters that are located in space called?

A)WiFi
B)Microwaves
C)Optical fiber
D)Communication satellites

Question 66

A switch is a device that connects multiple computers into a network in which multiple communications links can be in operation simultaneously.

Question 67

What type of model describes an environment when a server's only duty is to help with data management; the computer receiving the information does everything else?

A)Client model
B)Server-to-peer model
C)Hierarchical model
D)Distributed data model

Question 68

What software and/or hardware device protects a computer or a network from intruders?

A)Router
B)Firewall
C)Switch
D)Hub

Question 69

Which of the following models describes an environment where the computer receiving information from a server shares processing responsibilities with the server?

A)Distributed logic model
B)Remote data management model
C)Distributed presentation model
D)Distributed data management model

Question 70

Secure Sockets Layer is an example of which of the following?

A)Encryption
B)Worm
C)Virus
D)Spyware

Question 71

What type of network security applications watches the current network traffic,matching it against lists with characteristics of known attacks?

A)Firewall
B)Intrusion detection system
C)Denial-of-service
D)Authenticity

Question 72

What is a network that uses encryption to protect confidentiality of transmission?

A)Public network
B)Private network
C)Virtual private network
D)VoIP

Question 73

What type of security threat is it when a Web server is flooded with requests from thousands of users at once and causing it to become unavailable?

A)Firewall
B)Intrusion detection system
C)Denial-of-service
D)Availability

Question 74

What type of network threat is spoofing or sending fraudulent email?

A)Confidentiality
B)Authenticity
C)Integrity
D)Availability

Question 75

What type of network security is concerned ensuring that data has not be altered in any way during transmission?

A)Confidentiality
B)Authenticity
C)Integrity
D)Availability

Question 76

What 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

Question 77

What type of network security is concerned with keeping information safe and allowing it to be accessed only by authorized persons?

A)Confidentiality
B)Authenticity
C)Integrity
D)Availability

Question 78

What communications device receives a radio signal,strengthens it,and then sends it on?

A)WiFi
B)Wireless fidelity
C)Repeater
D)Microwave

Question 79

What type of network threat causes a network failure which makes an e-commerce Web site inaccessible?

A)Confidentiality
B)Authenticity
C)Integrity
D)Availability

Question 80

Which of the following is not a type of malware?

A)Encryption
B)Worm
C)Virus
D)Spyware