Deck 7: Telecommunications, the Internet, and Wireless Technology

Question 1

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
E)Software,Hardware,Network Interface,Internet

Answer 1

C

Question 2

In TCP/IP,IP is responsible for which of the following?

A)Disassembling and reassembling packets during transmission
B)Establishing an Internet connection between two computers
C)Moving packets over the network
D)Sequencing the transfer of packets
E)Breaking messages down into packets

Answer 2

A

Question 3

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.
E)Packets are reassembled into the original message when they reach their destinations.

Answer 3

C

Question 4

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

Question 5

Which of the following involves slicing digital messages into parcels,transmitting them along different communication paths,and reassembling them at their destinations?

A)Multiplexing
B)Packet shifting
C)Packet routing
D)ATM
E)Packet switching

Question 6

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.

Question 7

A NOS must reside on all the local computers in a network.

Question 8

The telephone system is an example of a ________ network.

A)peer-to-peer
B)wireless
C)packet-switched
D)circuit-switched
E)client/server

Question 9

Telephone networks are based on the same principles as computer networks.

Question 10

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
E)Email,instant messaging,and newsgroups

Question 11

On which of the following protocols is the Internet based?

A)TCP/IP
B)FTP
C)IMAP
D)HTTP
E)DNS

Question 12

Client/server computing is a:

A)network that connects sensors to desktop computers.
B)network where centralized mainframe computers serve local devices.
C)centralized model of computing for large corporations.
D)distributed computing model where clients are linked to one another through a network that is controlled by a network server computer.
E)centralized computing model where local computers are connected to one another by a network.

Question 13

Which of the following is the best description of a protocol in a telecommunications network architecture?

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
E)A pathway through which packets are routed

Question 14

Which of the following is a device that sends packets of data through different networks assuring they go to the correct address?

A)Hub
B)Switch
C)Router
D)NIC
E)Modem

Question 15

A hub is a networking device that sends packets of data to all other devices on the network.

Question 16

A computer network consists of at least two computers.

Question 17

TCP/IP was developed during the early 1970s to support efforts to help scientists transmit data among different types of computers over long distances.

Question 18

Client/server computing has largely replaced centralized mainframe computing.

Question 19

In a client/server network,a network server sets the rules of communication for the network.

Question 20

Computer networks that use packet switching are less efficient than telephone networks that use circuit switching.

Question 21

What are some of the common types of physical transmission media and what differentiates them from one another?

Question 22

Which signal types are represented by a continuous waveform?

A)Laser
B)Optical
C)Digital
D)RFID
E)Analog

Question 23

How are modern telephone and computer networks different from what firms used in the past?

Question 24

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

Question 25

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.
E)geographical distance spanned by a network.

Question 26

Which type of network would be most appropriate for a business comprised of 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
E)SAN

Question 27

What are the two types of signals used to communicate a message in a network and how are they different? What device converts one type to the other type?

Question 28

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

A)modulated
B)broadband
C)T1
D)analog
E)digital

Question 29

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

Question 30

Identify the layers of the Department of Defense reference model for TCP/IP,and describe how this model works.

Question 31

How does packet switching work?

Question 32

A network that spans a college or corporate facility is called a:

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

Question 33

Which of the following is a device that makes possible the translation of digital signals to analog sound signals used by a computer network?

A)Local area network
B)Modem
C)DSL
D)Twisted wire
E)TCP/IP

Question 34

Which type of network treats all processors equally and allows peripheral devices to be shared without going to a separate server?

A)MAN
B)Wireless
C)LAN
D)Windows domain network
E)Peer-to-peer

Question 35

Bandwidth refers to the range of frequencies that can be transmitted by a telecommunications channel.

Question 36

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.
E)RPMs.

Question 37

Which of the following is not one of the top five search engines?

A)Facebook
B)Yahoo
C)Microsoft Bing
D)Baidu
E)Google

Question 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.
E)metropolitan area network.

Question 39

You have been hired by a small new web design firm to set up a network for its single office location.The network is primarily needed for exchanging files,accessing and managing beta websites on their web server,and connecting to the Internet.The firm hires many freelancers who come into the office on an ad-hoc basis and it does not have a lot of money to spend on infrastructure.What type of network will you recommend?

Question 40

Which type of network is used to connect digital devices within a city or metropolitan area?

A)Wi-Fi
B)LAN
C)WAN
D)MAN
E)SAN

Question 41

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.
E)child domain.

Question 42

The most common web servers today are:

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

Question 43

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

A)TCP/IP
B)RSS
C)WiMax
D)IoT
E)Search engine marketing

Question 44

Instant messaging is a type of ________ service.

A)chat
B)cellular
C)email
D)wireless
E)network

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.
E)Users are increasingly using search engines on mobile devices.

Question 46

Digital subscriber lines:

A)operate over existing telephone lines to carry voice,data,and video.
B)operate over coaxial cable 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.
E)are assigned to every computer on the Internet.

Question 47

In the domain name "http://books.azimuth-interactive.com",which element is the second-level domain?

A)books
B)azimuth-interactive.com
C)com
D)none; there is no second-level domain in this name
E)books.azimuth-interactive

Question 48

Predictive search in Google's search engine:

A)maintains a history of your searches and then predicts what you will search on next.
B)uses a tracking service and cookies on your browser to predict search results.
C)uses a knowledge graph of what similar people searched on to predict your search interests.
D)uses a semantic approach to predict what you are looking for.
E)predicts what you are looking for as you enter words into the query box.

Question 49

Which of the following pulls content from websites and feeds it automatically to users' computers?

A)FTP
B)RSS
C)HTTP
D)Bluetooth
E)IPv6

Question 50

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.
E)is a proprietary networking service technology developed by individual corporations.

Question 51

What service converts natural language names to IP addresses?

A)HTML
B)FTP
C)IP
D)HTTP
E)DNS

Question 52

T1 lines:

A)operate over existing telephone lines to carry voice,data,and video.
B)operate over coaxial lines to deliver Internet access.
C)do not provide guaranteed service levels,but simply "best effort."
D)have up to twenty-four 64-Kbps channels.
E)are high-speed,leased data lines providing guaranteed service levels.

Question 53

Which of the following can be used to help a website achieve a higher ranking with the major search engines?

A)VPN
B)IAB
C)SEM
D)SEO
E)RSS

Question 54

Which organization manages the domain name system of the Internet?

A)None (no one "owns" the Internet)
B)W3C
C)ICANN
D)The Department of Commerce (U.S.)
E)IAB

Question 55

Which process is used to protect transmitted data in a VPN?

A)Tunneling
B)PPP
C)VOIP
D)Packet-switching
E)Chaining

Question 56

________ integrate disparate channels for voice communications,data communications,instant messaging,email,and electronic conferencing into a single experience.

A)Wireless networks
B)Intranets
C)Virtual private networks
D)Modems
E)Unified communications

Question 57

Web browser software requests web pages from the Internet using which of the following protocols?

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

Question 58

IPv6 has been 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.
E)reduce excess IP addresses.

Question 59

The domain .gov is a(n):

A)Internet root domain.
B)top-level domain.
C)host domain.
D)network domain.
E)third level domain.

Question 60

Shopping bots use ________ software for searching the Internet.

A)Web 2.0
B)Web 3.0
C)intelligent agent
D)comparison
E)SEO

Question 61

Digital rights activists believe differentiated pricing does not violate net neutrality principles.

Question 62

By 2019,it is estimated that more than 215 million Americans will use mobile search.

Question 63

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

Question 64

Blogs,wikis,and social networking sites were designed for individuals to communicate with each other.What uses do businesses have for these tools? Give specific examples.

Question 65

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

A)RSS
B)WAN
C)NFP
D)ISP
E)FTP

Question 66

What has made the Google search engine so successful?

Question 67

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

A)web server
B)net server
C)router
D)modem
E)hub

Question 68

What is IPv6 and why is it necessary?

Question 69

VoIP technology delivers voice information in digital form using circuit switching.

Question 70

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

Question 71

Explain the Domain Name System.What are some of the common domain name extensions currently available and what types of services do they designate?

Question 72

Which one of the following statements is not true?

A)The Internet backbone is owned by the federal government in the United States.
B)ICANN manages the domain name system.
C)The IAB establishes the overall structure of the Internet.
D)The Internet must conform to laws where it operates.
E)W3C determines programming standards for the Internet.

Question 73

Mobile search makes up more than 50% of all Internet searches.

Question 74

In addition to being an online retailer,Amazon is also a powerful product search engine.

Question 75

What are some of the key features of the future Web and Internet?

Question 76

The Internet of Things (IoT)refers to:

A)the fact that nearly everyone has some kind of computer today.
B)the idea that nearly everyone in the United States is connected to the Internet.
C)billions of Internet-connected sensors.
D)the role of computer processors in automobiles.
E)the idea that cars,planes,factories,and government are all connected to the Internet.

Question 77

The "Internet of Things" refers to a vision of a pervasive Web,in which common objects are connected to everyone on the Internet.

Question 78

What are the business advantages of using voice over IP (VoIP)technology?

Question 79

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

A)regional network providers.
B)enhanced service providers.
C)internet bulk providers.
D)backbone providers.
E)network service providers.

Question 80

The Internet of Things is based on billions of Internet-connected sensors throughout the physical world.