Deck 7: Telecommunications, the Internet, and Wireless Technology

Question 1

Which protocol is the Internet based on?

A) TCP/IP
B) FTP
C) Packet-switching
D) HTTP
E) Telnet

Answer 1

A

Question 2

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) Hardware, software, transport, and application

Answer 2

C

Question 3

A networking approach where many control functions for managing the movement of data on a network are managed by a central program separately from the network itself is known as:

A) service-oriented architecture.
B) software-defined networking.
C) software-as-a-service.
D) remote network management.
E) cloud networking.

Answer 3

B

Question 4

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

Question 5

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) HTTP, Web 3.0, and the mobile platform

Question 6

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

Question 7

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.
E) software-defined networking.

Question 8

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

Question 9

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

A) switch
B) firewall
C) server
D) network operating system/NOS
E) hotspot

Question 10

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.
E) LAN.

Question 11

Approximately what percentage of U.S. households has high-speed broadband connections?

A) 10 percent
B) 25 percent
C) 50 percent
D) 75 percent
E) 99 percent

Question 12

Prior to the development of ________, computer networks used leased, dedicated telephone circuits to communicate with other computers in remote locations.

A) VOIP
B) routers
C) servers
D) coaxial cable
E) packet switching

Question 13

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.
E) acknowledging the packets sent.

Question 14

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 15

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) Packet switching makes efficient use of a network's communications capacity.

Question 16

The telephone system is an example of a ________ network.

A) peer-to-peer
B) wireless
C) packet-switched
D) TCP/IP
E) circuit-switched

Question 17

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

Question 18

Which of the following is not one of the four layers of the TCP/IP communications model?

A) Application layer
B) Transport layer
C) Internet layer
D) Network Interface layer
E) Local area layer

Question 19

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.
E) a system by which packets are sent over different networks.

Question 20

Telephone networks are fundamentally different from computer networks.

Question 21

Which type of network serves a small group of computers, allowing them to share resources and peripherals without using a dedicated server?

A) Peer-to-peer
B) Wireless
C) LAN
D) Ring
E) MAN

Question 22

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 used in connection with satellite Internet access.
D) have up to twenty-four 64-Kbps channels.
E) are high-speed, leased data lines providing guaranteed service levels.

Question 23

TCP/IP was developed in the 1950s.

Question 24

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

Question 25

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

Question 26

To use the analog telephone system for sending digital data, you must also use:

A) coaxial cable.
B) a router.
C) DSL.
D) twisted wire.
E) a modem.

Question 27

A LAN could be used to connect all of the following except:

A) all of the computers in a large building.
B) all of the devices within a 10-meter area.
C) all of the computers in a city.
D) all of the computers in a small office.
E) all of the computers on a college campus.

Question 28

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

Question 29

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.
E) are based on radio signals of various frequencies.

Question 30

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) metropolitan area network.
E) wide area network.

Question 31

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) ROM.

Question 32

How does packet switching work?

Question 33

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

Question 34

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) PAN
B) Domain-based LAN
C) Peer-to-peer network
D) Campus area network
E) WAN

Question 35

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
E) WSN

Question 36

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 37

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) number of packets sent per minute over a medium.

Question 38

Which signal types are represented by a continuous waveform?

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

Question 39

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

Question 40

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

Question 41

IPv6 was 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) support Web 3.0.

Question 42

What service converts IP addresses into more recognizable alphanumeric names?

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

Question 43

The "Internet of Things" refers to:

A) the increasing focus on shopping as the major user activity on the Internet.
B) the microblogging trend, in which users exchange short text and pictures rather than longer and more in-depth content and text.
C) the rise in mobile gaming.
D) the trend away from platform-independent web applications to mobile-device specific apps.
E) a vision of a pervasive web in which common objects are connected to and controlled over the Internet.

Question 44

________ integrate(s) 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) Telnet
E) Unified communications

Question 45

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 46

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) "http://", blogging, .com
D) myspace, blogging, .com
E) )com, blogging, myspace

Question 47

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

Question 48

Which organization helps define the overall structure of the Internet?

A) None (no one "owns" the Internet)
B) W3C
C) ICANN
D) IAB
E) HTTP

Question 49

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

Question 50

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
E) T1 lines

Question 51

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

Question 52

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

Question 53

Which of the following is considered by many to be the defining Web 2.0 application?

A) Instant messaging
B) Email
C) Blogging
D) Social networking
E) Widgets

Question 54

Instant messaging is a type of ________ service.

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

Question 55

Which of the following enables multiple users to create and edit web documents?

A) Wiki
B) Blog
C) Social networking
D) Pinterest
E) RSS

Question 56

The child domain of the root is the:

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

Question 57

Today, most Americans connect to the Internet through broadband connections at speeds up to 15 Mbps.

Question 58

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 59

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 60

An analog signal is a discrete, binary waveform that transmits data coded into two discrete states such as 1-bits and 0-bits.

Question 61

A web server is a dedicated computer that delivers web pages to client computers.

Question 62

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 63

An ISP is a commercial organization that owns a region of transcontinental high-speed backbone networks carrying the bulk of Internet traffic.

Question 64

The most common web server today, controlling 65 percent of the market, is:

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

Question 65

Describe and explain the idea of "net neutrality." Are you in favor of net neutrality? Why or why not?

Question 66

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) They emerged in the early 1990s as simple software programs.
E) There are hundreds of search engines vying for user attention, with no clear leader having yet emerged.

Question 67

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

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

Question 68

What technology allows people to have content pulled from websites and fed automatically to their computers?

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

Question 69

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

A) Tunneling
B) PPP
C) VOIP
D) Packet switching
E) Hypertext

Question 70

In blogging, a trackback is a list of entries in other blogs that refer to a post in the first blog.

Question 71

The advanced networking consortium representing more than 500 universities, businesses, and government agencies is known as:

A) Internet2.
B) ICANN.
C) IAB.
D) W3C.
E) FCC.

Question 72

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

Question 73

The process of employing techniques to help a website achieve a higher ranking with the major search engines is called:

A) VPN.
B) IAB.
C) SEM.
D) SEO.
E) LED.

Question 74

Mobile search makes up approximately 10% of all Internet searches.

Question 75

The trunk lines of the Internet are typically owned by network service providers.

Question 76

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) formats web pages with dynamic links to other documents.

Question 77

Which of the following is an example of the "visual web"?

A) Twitter
B) Blogger
C) Pinterest
D) Facebook
E) Google

Question 78

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

Question 79

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) VPN.

Question 80

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