Deck 7: Telecommunications, the Internet, and Wireless Technology

Question 1

In a ring topology, one station transmits signals, which travel in both directions along a single transmission segment.

Answer 1

False

Question 2

WiMax has a wireless access range of up to 31 miles.

Answer 2

True

Question 3

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

Answer 3

True

Question 4

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

Question 5

Web 3.0 is a collaborative 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.

Question 6

RFID has been exceptionally popular from the technology's inception because of its low implementation costs.

Question 7

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.

Question 8

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

Question 9

Increasingly, voice, video, and data communications are all based on Internet technology.

Question 10

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

Question 11

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

Question 12

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

Question 13

VoIP technology delivers video information in digital form using packet switching.

Question 14

To create a computer network, you must have at least two computers.

Question 15

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

Question 16

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

Question 17

A protocol is a standard set of rules and procedures for the control of communications in a network.

Question 18

Telephone networks are fundamentally different from computer networks.

Question 19

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

Question 20

Wi-Fi enables users to freely roam from one hotspot to another even if the next hotspot is using different Wi-Fi network services.

Question 21

All network components connect to a single hub in a ________ topology.

A) star
B) bus
C) domain
D) peer-to-peer

Question 22

A network that covers broad 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.

Question 23

The telephone system is an example of a ________ network.

A) peer-to-peer
B) wireless
C) packet-switched
D) circuit-switched

Question 24

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.

Question 25

The most common Ethernet topology is

A) bus.
B) star.
C) ring.
D) mesh.

Question 26

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.

Question 27

Which of the following Internet connection types offers the greatest bandwidth?

A) T3
B) DSL
C) cable
D) T1

Question 28

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

Question 29

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.

Question 30

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.

Question 31

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

Question 32

Which type of network is used to connect digital devices within a half-mile or 500-meter radius?

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

Question 33

In a bus network

A) signals are broadcast to the next station.
B) signals are broadcast in both directions to the entire network.
C) multiple hubs are organized in a hierarchy.
D) messages pass from computer to computer in a loop.

Question 34

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.

Question 35

A network that spans a city, and sometimes its major suburbs as well, is called a

A) CAN.
B) MAN.
C) LAN.
D) WAN.

Question 36

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.

Question 37

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.

Question 38

Which signal types are represented by a continuous waveform?

A) laser
B) optical
C) digital
D) analog

Question 39

________ work by using radio waves to communicate with radio antennas placed within adjacent geographic areas.

A) Cell phones
B) Microwaves
C) Satellites
D) WANs

Question 40

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) wireless network in infrastructure mode
B) domain-based LAN
C) peer-to-peer network
D) campus area network

Question 41

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.

Question 42

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.

Question 43

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.

Question 44

Which of the following distinguishes wikis from blogs?

A) Wikis allow users to add content, whereas blogs are created by a single person.
B) Blogs are personal publishing tools, while Wikis have business uses.
C) Wikis require some knowledge of Web programming, whereas blogs are designed to be created by people without HTML skills of any kind.
D) Wikis allow users to modify content created by other users, whereas blogs only allow comments to posted material.

Question 45

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.

Question 46

________ 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

Question 47

The child domain of the root is the

A) top-level domain.
B) second-level domain.
C) host name.
D) domain extension.

Question 48

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.

Question 49

Which protocol is the Internet based on?

A) TCP/IP
B) FTP
C) packet-switching
D) HTTP

Question 50

T 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.

Question 51

Which of the following services enables logging on to one computer system and working on another?

A) FTP
B) LISTSERV
C) Telnet
D) World Wide Web

Question 52

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.

Question 53

Web browser software requests Web pages from the Internet using which protocol?

A) URL
B) HTTP
C) DNS
D) HTML

Question 54

In the domain name "http://myspace.blogging.com", what are the root, top-level, second-level, and third-level domains, respectively?

A) "http://", myspace, blogging, com
B) "http://", com, blogging, myspace
C) ".", com, blogging, myspace
D) ".", myspace, blogging, com

Question 55

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.

Question 56

Instant messaging is a type of ________ service.

A) chat
B) cellular
C) e-mail
D) wireless

Question 57

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

Question 58

The most common Web server today, controlling 54 percent of the market, is

A) Microsoft IIS.
B) WebSTAR
C) Apache HTTP Server.
D) Netscape Server.

Question 59

Which of the following is not an advantage of using VOIP?

A) VOIP can reduce a firm's communication costs by 20 to 30 percent.
B) It allows e-mail and voice mail to be combined into a single directory.
C) It enables the creation of two distinct networks for voice and data.
D) It allows new phones to be added to a network without rewiring or reconfiguring the network.

Question 60

Which organization helps define the overall structure of the Internet?

A) none (no one "owns" the Internet)
B) W3C
C) ICANN
D) IAB

Question 61

________ is the manner in which the components of a network are connected.

Question 62

Which of the following is not one of the four defining features of Web 2.0?

A) interactivity
B) real-time user control
C) cloud computing
D) social participation

Question 63

Which of the following statements is True?

A) GSM is the primary U.S. digital cellular standard.
B) CDMA's strength is in its international roaming capabilities.
C) CDMA randomly assigns users to a range of frequencies over time.
D) GSM was developed by the military during World War II.

Question 64

Which of the following would you be most likely to use RFID technology for?

A) tracking inventory
B) enabling CRM systems
C) lowering network costs
D) enabling client communication

Question 65

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

Question 66

The next evolution in wireless communication is

A) 3G networks.
B) 2.5G networks.
C) WiMax.
D) RFID.

Question 67

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

Question 68

Which of the following standards is most appropriate for creating a PAN?

A) WiMax
B) IEEE 802.11b
C) WiFi
D) Bluetooth

Question 69

The WiMax standard can transmit up to a distance of approximately

A) 30 meters.
B) 500 meters.
C) 30 miles.
D) 5 miles.

Question 70

________ computing is a distributed computing model in which some of the processing power is
located within small, inexpensive client computers.

Question 71

________ is the dominant LAN standard at the physical network level.

Question 72

The 802.11 set of standards for wireless LANs is known as

A) Wi-Fi.
B) WiMax.
C) Bluetooth.
D) RFID.

Question 73

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.

Question 74

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

Question 75

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

Question 76

The ________ is special software that routes and manages communications on the network and coordinates networks resources.

Question 77

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

Question 78

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

Question 79

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.

Question 80

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