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

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

Answer 2

True

Question 3

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 3

B

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

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 6

Client/server computing has largely replaced centralized mainframe computing.

Question 7

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

Question 8

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

Question 9

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 10

Computer networks are based on the same principles as telephone networks.

Question 11

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 12

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

Question 13

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 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

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 16

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 17

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 18

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

Question 19

A computer network consists of at least two computers.

Question 20

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 21

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 22

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

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

Question 23

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 24

How does packet switching work?

Question 25

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 26

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 27

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 28

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

Question 29

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 30

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 31

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

Question 32

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

Question 33

Which signal types are represented by a binary waveform?

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

Question 34

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

Question 35

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

Question 36

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 37

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

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

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 40

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 41

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 42

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 43

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 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

Instant messaging is a type of ________ service.

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

Question 46

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 47

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 48

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

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

Question 49

Shopping bots use ________ software for searching the Internet.

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

Question 50

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 51

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 52

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 53

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

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

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 domain .gov is a(n):

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

Question 56

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 57

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 58

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 59

What service converts IP addresses into more recognizable alphanumeric names?

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

Question 60

________ 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 61

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 62

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 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

Digital rights activists believe differentiated pricing violates net neutrality principles.

Question 65

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

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

Question 66

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

Question 67

What is IPv6 and why is it necessary?

Question 68

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

Question 69

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

Question 70

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 71

What has made the Google search engine so successful?

Question 72

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

Question 73

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

Question 74

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 75

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

Question 76

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 77

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 78

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

Question 79

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

Question 80

By 2018, it is estimated that more than 200 million Americans will use mobile search.