CSC DC Chapter 10 – Flashcards
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Which of the following is true of DSL?
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It is a popular digital line alternative for the small business or home user.
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What is a receiving device?
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A device that accepts the transmission of data, instructions, or information
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You want to use the UMB cellular transmission standard on your new mobile phone. Which standard will you use?
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4G
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Which of the following is not true of communications software?
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Email, FTP, and VoIP are examples of system software for communications.
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Many home users are connecting multiple computers and devices together into a system. What is the name for this system?
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Home network
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What is the definition of a protocol, as it applies to networks?
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A standard that outlines characteristics of how two network devices communicate
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The type of network shown in the accompanying figure, describes a network in which each computer has equal responsibilities and capabilities. What is this kind of network called?
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P2P
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Which of the following is the data transfer rate equivalent to one million bits per second?
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Mbps
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Which of the following is a simple, inexpensive network that typically connects fewer than 10 computers?
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Peer-to-peer network
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What is the maximum transfer transmission rate for Bluetooth?
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24 Mbps
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Digital communications describe a process in which two or more computers or devices transfer all of the following EXCEPT ______.
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Networks
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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 variety of wired and wireless transmission media?
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Wide area network (WAN)
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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?
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LAN
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What type of media transmits multiple signals simultaneously?
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Broadband
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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?
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Star network
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Which of the following is a communications device that connects multiple computers together and transmits data to its correct destination on a network?
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Router
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What is another term for an Internet peer-to-peer network?
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A file sharing network
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Which of the following terms is an electrical disturbance that can degrade communications?
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Noise
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Which of the following technologies is your new wireless headset most likely to use?
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Bluetooth
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Which of the following is not an application of communications satellite technology?
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Fixed wireless
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Which of the following is a LAN that uses no physical wires?
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WLAN
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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?
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Ethernet
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Which of the following has the fastest maximum transfer transmission rate?
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UWB
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Which of the following is a transmission media on which data, instructions, or information travel?
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Communications channel
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Which of the following is a 4G standard?
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LTE
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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?
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Host
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Which group developed the WiMAX standard?
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IEEE
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Which of the following enables a computer or device that does not have built-in networking capability to access a network?
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NIC
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What is the term used to connect a device to a network that has an IP address?
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Node
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Which of the following offers an alternative to infrared communications with high bandwidth transmissions?
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Bluetooth
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Which of the following communications technologies does not use broadcast radio signals?
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IR
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Which of the following terms identifies any network based on the 802.11 family of standards?
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Wi-Fi
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You are purchasing a new mobile phone, and are learning about categories of cellular transmissions. You ask the sales person what the 'G' stands for in the categories 1G, 2G, 3G, and 4G. What does he reply?
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Generation
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Which of the following technologies is your new mobile phone payment device most likely to use?
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NFC
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Your smartphone, digital camera, and printer are all part of a network in your workspace. What type of network is likely in use?
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PAN
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Which of the following can detect problems—such as why traffic is flowing slowly—on networks that use the TCP/IP protocol?
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Packet sniffer software
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Which of the following best describes DSL connections?
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Transmits at fast speeds on existing standard copper telephone wiring; popular for small business or home user
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Which of the following is not a technology used by hot spots?
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UWB
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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?
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Coaxial
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What is a receiving device?
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A device that accepts the transmission of data, instructions, or information
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For smaller business and home networks, which of the following allows multiple computers to share a single broadband Internet connection such as through a cable modem or DSL modem?
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Router
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Which of the following terms is the time it takes a signal to travel from one location to another on a network?
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Latency
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Digital communications describes a process in which two or more computers or devices transfer all of the following EXCEPT ____.
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Networks
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Which of the following best describes DSL connections?
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Transmits at fast speeds on existing standard copper telephone wiring; popular for small business or home user
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Which of the following statements is not true of Wi-Fi?
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Even if two products are Wi-Fi Certified, they must share the same platform in order to communicate.
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The amount of data, instructions, and information that can travel over a communications channel sometimes is called which of the following?
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Bandwidth
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Which of the following are radio waves that provide a high-speed signal transmission?
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Microwaves
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What is the purpose of hubs and switches?
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To provide a central point for cables in a network
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What is a sending device?
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A device that initiates an instruction to transmit data, instructions, or information
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What is the term for a communications device that connects multiple computers together and transmits data to its correct destination on a network?
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Router
