Deck 7: Telecommunications,the Internet,and Wireless Technology

Question 1

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

Answer 1

B

Question 2

Which of the following is a device that acts as a connection point between computers and can filter and forward data to a specified destination?

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

Answer 2

B

Question 3

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 3

True

Question 4

On which of the following protocols is the Internet based?

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

Question 5

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 6

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 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

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 9

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.

Question 10

Computer networks are fundamentally different from telephone networks.

Question 11

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

Question 12

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

A)modem
B)router
C)packet
D)telnet
E)hub

Question 13

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

Question 14

A computer network consists of at least three computers.

Question 15

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

Question 16

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

Question 17

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

Question 18

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

Question 19

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)E-mail,instant messaging,and newsgroups

Question 20

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

Question 21

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 22

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 23

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

Question 24

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

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

Question 25

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 26

How does packet switching work?

Question 27

Which signal types are represented by a continuous waveform?

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

Question 28

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
E)SAN

Question 29

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 30

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

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

Question 31

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

Question 32

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 33

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 34

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

Question 35

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

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

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

Question 38

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 39

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.
E)TCP/IP.

Question 40

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

Question 41

The most common web server today is:

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

Question 42

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 43

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 44

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 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

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 47

Instant messaging is a type of ________ service.

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

Question 48

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 49

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

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

Question 50

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 51

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

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

Question 52

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 53

________ integrate 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)Modems
E)Unified communications

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

Question 55

The child domain of the root is called the:

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

Question 56

Which organization helps define the overall structure of the Internet?

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

Question 57

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 58

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

A)TCP/IP
B)RSS
C)WiMax
D)IoT
E)Search Engine Marketing

Question 59

Shopping bots use ________ software for searching the Internet.

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

Question 60

What service converts IP addresses into more recognizable alphanumeric names?

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

Question 61

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 62

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 63

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.

Question 64

What has made the Google search engine so successful?

Question 65

More than 200 million Americans access the Internet via mobile devices.

Question 66

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

Question 67

Digital rights activists believe "zero-rating" practices violate net neutrality principles.

Question 68

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

Question 69

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 70

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

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

Question 71

The emerging Internet of People is based on sensors attached to clothing and personal effects that monitor physical states and locations of individuals.

Question 72

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

Question 73

Which of the following is not a defining feature of Web 2.0?

A)Interactivity
B)Real-time user control
C)Semantic search
D)Social participation (sharing)
E)User-generated content

Question 74

What is Web 3.0,and how do you think Web 3.0 developments could impact businesses?

Question 75

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

Question 76

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

Question 77

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

Question 78

What is IPv6 and why is it necessary?

Question 79

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 80

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