BIS Ch. 7

32) Which type of network treats all processors equally, and allows peripheral devices to be shared without going to a separate server? A) peer-to-peer B) wireless C) LAN D) Windows domain network

Answer: A

35) All of the following are physical components of an RFID system except A) bar code. B) antenna. C) radio transmitters. D) tags.

Answer: A

36) Which digital cellular standard is used widely throughout the world except the United States? A) GSM B) CDMA C) WLAN D) LTD

Answer: A

45) What service converts IP addresses into more recognizable alphanumeric names? A) HTML B) DNS C) IP D) HTTP

Answer: B

67) The 802.11 set of standards is known as A) WLAN. B) WSN. C) Wi-Fi. D) WiMax.

Answer: C

62) 4G networks are also known as ________ networks. A) GSM B) CDMA C) LTD D) T-Mobile

Answer: C

39) The concept of a future Web in which it is commonplace for everyday objects to be connected, controlled or monitored over the Internet is called A) the Web of things. B) the Semantic Web. C) Internet2. D) a 3-D Web.

Answer: A

51) Instant messaging is a type of ________ service. A) chat B) cellular C) e-mail D) wireless

Answer: A

26) In TCP/IP, IP is responsible for A) disassembling and reassembling of packets during transmission. B) establishing an Internet connection between two computers. C) moving packets over the network. D) sequencing the transfer of packets.

Answer: A

30) To use the analog telephone system for sending digital data, you must also use A) a modem. B) a router. C) DSL. D) twisted wire.

Answer: A

41) The total amount of digital information that can be transmitted through any telecommunications medium is measured in A) bps. B) Hertz. C) baud. D) gigaflops.

Answer: A

42) Digital subscriber lines A) operate over existing telephone lines to carry voice, data, and video. B) operate over coaxial lines to deliver Internet access. C) are very-high-speed data lines typically leased from long-distance telephone companies. D) have up to twenty-four 64-Kbps channels.

Answer: A

44) Which protocol is the Internet based on? A) TCP/IP B) FTP C) packet-switching D) HTTP

Answer: A

46) The child domain of the root is the A) top-level domain. B) second-level domain. C) host name. D) domain extension.

Answer: A

54) A VPN A) is an encrypted private network configured within a public network. B) is more expensive than a dedicated network. C) provides secure, encrypted communications using Telnet. D) is an Internet-based service for delivering voice communications.

Answer: A

56) Together, a protocol prefix, a domain name, a directory path, and a document name, are called a(n) A) uniform resource locator. B) IP address. C) third-level domain. D) root domain.

Answer: A

65) Which process is used to protect transmitted data in a VPN? A) tunneling B) PPP C) VOIP D) packet-switching

Answer: A

23) The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called A) multiplexing. B) packet switching. C) packet routing. D) ATM.

Answer: B

27) In a telecommunications network architecture, a protocol is A) a device that handles the switching of voice and data in a local area network. B) a standard set of rules and procedures for control of communications in a network. C) a communications service for microcomputer users. D) the main computer in a telecommunications network.

Answer: B

31) Which type of network is used to connect digital devices within a half-mile or 500-meter radius? A) Wi-Fi B) LAN C) WAN D) MAN

Answer: B

47) In the domain name "http://books.azimuth-interactive.com", which element is the second-level domain? A) books B) azimuth-interactive C) com D) none there is no second-level domain in this name

Answer: B

55) Web browser software requests Web pages from the Internet using which protocol? A) URL B) HTTP C) DNS D) HTML

Answer: B

21) The device that acts as a connection point between computers and can filter and forward data to a specified destination is called a(n) A) hub. B) switch. C) router. D) NIC.

Answer: B

34) WSNs are designed for A) connecting multiple wireless computing devices. B) monitoring the physical environment. C) increasing the reach of Wi-Fi networks. D) tracking the movement of goods in a supply chain.

Answer: B

37) A network that spans a city, and sometimes its major suburbs as well, is called a A) CAN. B) MAN. C) LAN. D) WAN.

Answer: B

49) IPv6 is being developed in order to A) update the packet transmission protocols for higher bandwidth. B) create more IP addresses. C) allow for different levels of service. D) support Internet2.

Answer: B

58) What technology allows people to have content pulled from Web sites and fed automatically to their computers? A) FTP B) RSS C) HTTP D) Bluetooth

Answer: B

66) One or more access points positioned on a ceiling, wall, or other strategic spot in a public place to provide maximum wireless coverage for a specific area are referred to as A) touch points. B) hotspots. C) hot points. D) wireless hubs.

Answer: B

69) Passive RFID tags A) have their own power source. B) have a range of several feet. C) enable data to be rewritten and modified. D) are used in automated toll-collection systems.

Answer: B

70) Based on your reading of the examples in the chapter, what would be the best use of RFID for a business? A) logging transactions B) managing the supply chain C) lowering network costs D) enabling client communication

Answer: B

22) The Internet is based on which three key technologies? A) TCP/IP, HTML, and HTTP B) TCP/IP, HTTP, and packet switching C) client/server computing, packet switching, and the development of communications standards for linking networks and computers D) client/server computing, packet switching, and HTTP

Answer: C

25) Which of the following is not a characteristic of packet switching? A) Packets travel independently of each other. B) Packets are routed through many different paths. C) Packet switching requires point-to-point circuits. D) Packets include data for checking transmission errors.

Answer: C

28) What are the four layers of the TCP/IP reference model? A) physical, application, transport, and network interface B) physical, application, Internet, and network interface C) application, transport, Internet, and network interface D) application, hardware, Internet, and network interface

Answer: C

33) Which type of network would be most appropriate for a business that comprised three employees and a manager located in the same office space, whose primary need is to share documents? A) MAN B) Domain-based LAN C) Peer-to-peer network D) WAN

Answer: C

40) Bandwidth is the A) number of frequencies that can be broadcast through a medium. B) number of cycles per second that can be sent through a medium. C) difference between the highest and lowest frequencies that can be accommodated on a single channel. D) total number of bytes that can be sent through a medium per second.

Answer: C

43) T1 lines A) operate over existing telephone lines to carry voice, data, and video. B) operate over coaxial lines to deliver Internet access. C) are high-speed, leased data lines providing guaranteed service levels. D) have up to twenty-four 64-Kbps channels.

Answer: C

57) The most common Web server today, controlling 59 percent of the market, is A) Microsoft IIS. B) WebSTAR. C) Apache HTTP Server. D) Netscape Server.

Answer: C

64) Bluetooth can be used to link up to ________ devices within a 10-meter area using low-power, radio-based communication. A) four B) six C) eight D) ten

Answer: C

68) The WiMax standard can transmit up to a distance of approximately A) 30 meters. B) 500 meters. C) 30 miles. D) 5 miles.

Answer: C

59) The process of employing techniques to help a Web site achieve a higher ranking with the major search engines is called A) VPN. B) IAB. C) SEM. D) SEO.

Answer: D

24) The telephone system is an example of a ________ network. A) peer-to-peer B) wireless C) packet-switched D) circuit-switched

Answer: D

29) Which signal types are represented by a continuous waveform? A) laser B) optical C) digital D) analog

Answer: D

38) A network that covers entire geographical regions is most commonly referred to as a(n) A) local area network. B) intranet. C) peer-to-peer network. D) wide area network.

Answer: D

48) Which organization helps define the overall structure of the Internet? A) none (no one "owns" the Internet) B) W3C C) ICANN D) IAB

Answer: D

50) Which of the following services enables logging on to one computer system and working on another? A) FTP B) World Wide Web C) newsgroups D) telnet

Answer: D

52) Which of the following statements about RFID is not true? A) RFIDs transmit only over a short range. B) RFIDs use an antenna to transmit data. C) Microchips embedded in RFIDs are used to store data. D) RFIDs require line-of-sight contact to be read.

Answer: D

53) ________ integrate(s) disparate channels for voice communications, data communications, instant messaging, e-mail, and electronic conferencing into a single experience. A) Wireless networks B) Intranets C) Virtual private networks D) Unified communications

Answer: D

60) Which of the following statements is not true about search engines? A) They are arguably the Internet's "killer app." B) They have solved the problem of how users instantly find information on the Internet. C) They are monetized almost exclusively by search engine marketing. D) There are hundreds of search engines vying for user attention, with no clear leader having yet emerged.

Answer: D

61) Which of the following is the first generation of cellular systems suitable for watching videos? A) 2G B) 2.5G C) 3G D) 4G

Answer: D

63) The most appropriate wireless networking standard for creating PANs is A) I-mode. B) IEEE 802.11b. C) Wi-Fi. D) Bluetooth.

Answer: D

13) The number of cycles per second that can be sent through any telecommunications medium is measured in kilobytes.

Answer: FALSE

10) Over 80% of U.S. Internet users access the Internet via mobile devices.

Answer: FALSE

14) The Domain Name System (DNS) converts IP addresses to domain names.

Answer: FALSE

18) TCP/IP was developed in the 1960s to enable university scientists to locate other computers on the Internet.

Answer: FALSE

20) RFID technology is being gradually replaced by less costly technologies such as WSNs.

Answer: FALSE

3) An NOS must reside on a dedicated server computer in order to manage a network.

Answer: FALSE

4) A hub is a networking device that connects network components and is used to filter and forward data to specified destinations on the network.

Answer: FALSE

6) A computer network consists of at least three computers.

Answer: FALSE

7) Central large mainframe computing has largely replaced client/server computing.

Answer: FALSE

8) Circuit switching makes much more efficient use of the communications capacity of a network than does packet switching.

Answer: FALSE

77) A(n) ________ is a commercial organization with a permanent connection to the Internet that sells temporary connections to retail subscribers.

Answer: Internet service provider, ISP

71) ________ monetizes the value of the data stored by search engines.

Answer: Search engine marketing

73) ________ combine the functionality of a cell phone with the computing of a laptop.

Answer: Smartphones

19) Mobile search makes up 20% of all Internet searches.

Answer: TRUE

1) Telephone networks are fundamentally different from computer networks.

Answer: TRUE

11) Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire.

Answer: TRUE

12) Fiber-optic cable is more expensive and harder to install than wire media.

Answer: TRUE

15) VoIP technology delivers voice information in digital form using packet switching.

Answer: TRUE

16) Web 3.0 is an effort to add a layer of meaning to the existing Web in order to reduce the amount of human involvement in searching for and processing Web information.

Answer: TRUE

17) In a large company today, you will often find an infrastructure that includes hundreds of small LANs linked to each other as well as to corporate-wide networks.

Answer: TRUE

2) Wikis allow visitors to change or add to the original posted material.

Answer: TRUE

5) In a client/server network, a network server provides every connected client with an address so it can be found by others on the network.

Answer: TRUE

9) Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms.

Answer: TRUE

76) Web sites that enable users to share information, collaborate, and create new services and content are called ________ sites.

Answer: Web 2.0, second generation

79) A(n) ________ is software for locating and managing stored Web pages.

Answer: Web server

80) A(n) ________ is a box consisting of a radio receiver/transmitter and antennas that links to a wired network, router, or hub.

Answer: access point

74) A(n) ________ signal is a discrete, binary waveform that transmits data coded into two discrete states such as 1-bits and 0-bits.

Answer: digital

75) Shopping bots use ________ software for searching the Internet.

Answer: intelligent agent

78) The backbone networks of the Internet are typically owned by long-distance telephone companies called ________.

Answer: network service providers

72) A(n) ________ is a device that forwards packets of data through different networks, ensuring that the data gets to the right address.

Answer: router