Q&A Hero

Q: 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

Q: Which of the following communication mediums is a type of radio transmission? A.Cat 3 B.Optical fiber C.Infrared D.Microwave

Q: Which type of communication medium does not use radio waves? A.Bluetooth B.WiFi C.Twisted pair D.Microwave

Q: What communications device receives a radio signal, strengthens it, and then sends it on? A.WiFi B.Wireless fidelity C.Repeater D.Microwave

Q: Which type of Internet connection allows you to get Internet access from your satellite dish? A.Cable B.Satellite C.DSL D.Dish

Q: What are repeaters that are located in space called? A.WiFi B.Microwaves C.Optical fiber D.Communication satellites

Q: 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

Q: How do computers and routers know where to find other computers and routers? A.VPN B.Router ID C.Network site D.IP address

Q: 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)

Q: What term refers to the capacity of a communications medium to send information? A.Bandwidth B.Transmission size C.Routing capacity D.Communication speed

Q: 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

Q: How is bandwidth measured? A.Revolutions per minute (RPM) B.Transmissions per second (TPS) C.Bytes per second (BPS) D.Bits per second (BPS)

Q: Which of the following communications medium is not classified as a broadband connection? A.Dial-up B.DSL C.Cable modem D.Dedicated line

Q: 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

Q: 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

Q: What communications device do you need to connect your computer to a phone line? A.Conversion box B.Modem C.Transmitter D.Repeater

Q: 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

Q: 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

Q: 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

Q: 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

Q: 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

Q: Which type of network covers a metropolitan area? A.LAN B.MAN C.WAN D.VPN

Q: 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

Q: 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

Q: 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

Q: 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

Q: 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

Q: 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

Q: What is another name for a hub? A.Focal point B.Share network C.Network midpoint D.Router

Q: 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

Q: 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

Q: 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

Q: 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

Q: What is the most common type of network interface card (NIC)? A.WAP B.Cat 5 C.Broadband router D.Ethernet card

Q: Which network device creates a stronger network by allowing simultaneous transmissions and minimizing collisions? A.Hubs B.Routers C.Virtual connectors D.Switches

Q: 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

Q: Which network device sends information privately over the network? A.Hub B.Switch C.Router D.Virtual connector

Q: 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

Q: Which network device connects together networks of computers? A.Hubs B.Switches C.Routers D.Virtual connectors

Q: What is the most common transmission medium for a home network? A.Internet Explorer B.Network switch C.Broadband router D.Cat 5 cable

Q: Which network device passes network traffic between smaller subnets of a larger network? A.Broadband router B.WAP C.Switch D.Router

Q: Which type of cable is similar to a phone or twisted-pair cable? A.WAP B.Broadband cable C.Optical fiber D.Cat 5

Q: 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

Q: 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

Q: 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)

Q: 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

Q: 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

Q: 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

Q: Malware or malicious software can include _____, _____, and _____.

Q: A(n) _____ connection is a high-capacity telecommunications pipeline capable of providing high-speed Internet service.

Q: _____ can be used to make long distance phone calls over a DSL or Cable connection.

Q: A(n) _____ allows you to access the Internet through your cable connection.

Q: 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

Q: _____ are used to send large amounts of data to remote locations especially is there are a number of receiving sites.

Q: 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

Q: A network that covers a contiguous geographic area is called a(n) _____.

Q: 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

Q: A network that covers a metropolitan area is called a(n) _____.

Q: A network that covers a large geographic area where buildings are not in immediate proximity to each other is called a(n) _____.

Q: A typical speed of an infrared connection is _____.

Q: _____ is a short-distance wireless communication that is omnidirectional or all directions.

Q: A(n) _____ uses encryption to establish a secure channel for transmitting data.

Q: Restricting payroll information to only authorized payroll employees is ensuring _____ of the information.

Q: Verifying that your bank really sent an email requesting you to change your password is ensuring _____ of the message.

Q: Using a check digit to verify that the data has not been altered is ensuring _____ of the data.

Q: Bandwidth speed is measured by _____.

Q: _____ is a high-speed business connection used mostly in MANs and WANs.

Q: A(n) _____ can protect availability of a network and prevent _____ attacks.

Q: A(n) _____ 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.

Q: WiFi (wireless fidelity, 802.11a, b, or g) uses _____ transmissions.

Q: A(n) _____ is a device that passes network traffic between networks or subnets.

Q: _____ cable is a better-constructed version of the phone twisted-pair cable.

Q: _____ communications radiate information into the air, either very narrowly beamed or in many directions.

Q: _____ is a high-speed Internet connection using phone lines, which allows you to use your phone for voice communications at the same time.

Q: _____ uses red light to send and receive information.

Q: A(n) _____ connects networks within a metropolitan area.

Q: A(n) _____ transmits information over a closed, connected path.

Q: _____ has one central wire surrounded by insulation, a metallic shield, and a final case of insulating material.

Q: _____ uses a very thin glass or plastic fiber through which pulses of light travel.

Q: _____ is a bundle of copper wires used for transmitting voice or data communications.