Deck 6: The Internet

Question 1

A PDA has a large enough screen to display most Internet services and Web pages at their normal size.

Answer 1

False

Question 2

The big downside of portable WiMAX is that you use a different Internet service provider at home than you do on the road.

Answer 2

False

Question 3

Broadband speeds are available in all of a cellular service provider's coverage area

Answer 3

False

Question 4

Cable Internet services distribute always-on broadband Internet access over the same infrastructure that offers cable television service.

Question 5

Portable satellite service is a good match for people on tight budgets.

Question 6

A DSL connection can carry data but not voice.

Question 7

In many rural areas, satellite Internet service is the only alternative to a dial-up connection.

Question 8

Everyone who uses the Internet must have a domain name.

Question 9

The installation cost of a dial-up Internet connection runs about $25.

Question 10

Hotspot service plans are interchangeable.

Question 11

The Domain Name System is a database stored on one central Internet computer.

Question 12

Wi-Fi hotspot availability is currently limited.

Question 13

If cable Internet service is not available, or proves slower or less dependable than expected, the next choice would be dial-up or ISDN service, if available.

Question 14

The topology of a CATV system looks a lot like the physical topology for a computer network.

Question 15

The main routes for data traffic across the Internet are referred to as the Internet spine.

Question 16

DOCSIS, a security technology used by cable companies, secures your computer from your neighbors, but it does not close all the holes.

Question 17

A cable modem is a device that converts your computer's signal into one that can travel over the CATV network.

Question 18

New developments in WiMAX might make mobile enhancements to Wi-Fi unnecessary.

Question 19

IP (Internet Protocol) is responsible for addressing packets so that they can be routed to their destination.

Question 20

Most applications like the software in the figure above are based on a client/server model that uses a server to handle communication packets between the participants.

Question 21

Sharing printers or files on a LAN or the Internet requires open ports so the data can be transferred to and from your computer.

Question 22

Downstream speed refers to the rate at which you send data from your computer to the Internet.

Question 23

Today's VoIP systems allow you to use a standard telephone handset to make or receive calls.

Question 24

Firewall software is designed to help keep your computer secure.

Question 25

One-on-one messaging is referred to as instant messaging .

Question 26

A(n) cable modem is a device that changes a computer's signals into a form that can travel over cable TV links.

Question 27

A standalone computer with an always-on DSL, ISDN, or cable modem connection is particularly susceptible to intrusions.

Question 28

FTP allows authorized remote users to change file names and delete files.

Question 29

A VPN is typically a nonprofit solution.

Question 30

Fixed wireless technologies have more latency than satellite Internet service.

Question 31

The figure above illustrates a(n) ISDN .

Question 32

Since a VoIP number is not associated with a physical address, 911 systems cannot automatically direct emergency responders to your location in the event of an emergency.

Question 33

CATV coaxial and fiber optic cables have plenty of bandwidth to carry television signals for hundreds of channels in addition to digital data.

Question 34

FTP, SMTP, and UDP are routers used on the Internet.

Question 35

P2P FTP can be accessed by logging in without a password, by using a specified user ID.

Question 36

First-generation cellular data technology is digital and offers few features beyond voice communications.

Question 37

A public IP address is one that can be accessed by packets on the Internet.

Question 38

In general, a person initiates a VPN connection by connecting to an ISP as usual, but after the connection is established, a second connection to the remote access server creates an encrypted channel for data transmission.

Question 39

Communication between all the different devices on the Internet is made possible by the HTTP protocol suite.

Question 40

In communications technology, unmodulation means changing a signal back to its original state.

Question 41

Many Internet servers have an easy-to-remember name, such as nike.com. The official term for this name is ____.

A) organizational name
B) fully qualified domain name
C) IP name
D) URL

Question 42

____ coordinates technical management of the Internet's Domain Name System.

A) ICANN
B) Register
C) Network Solutions
D) Gateway

Question 43

If Ping receives a reply to the signal it sends, it reports that the computer is online and displays the ____.

A) amplitude
B) elapsed time for the round-trip message
C) frequency
D) wavelength of the round-trip message

Question 44

____ is responsible for addressing packets so they can be routed to their destination.

A) IP (Internet Protocol)
B) SMTP (Simple Mail Transfer Protocol)
C) TELNET (Telecommunication Network)
D) SSL (Secure Sockets Layer)

Question 45

Which of the following is the most inexpensive type of Internet connection?

A) dial-up connection
B) cable modem access
C) DSS
D) ISDN

Question 46

If your home has only one CATV cable outlet, you need to use a ____ to link your cable modem and cable set-top box.

A) bridge
B) coupler
C) splitter
D) dual interface

Question 47

In communications terminology, ____ means changing the characteristics of a signal, as when a modem changes a digital pulse into an analog audio signal.

A) resonance
B) amplification
C) demodulation
D) modulation

Question 48

A voiceband modem ____ a digital signal into an analog signal that can travel over phone lines.

A) modulates
B) demodulates
C) pings
D) maps

Question 49

A ____ contains circuitry that converts the data-carrying signals from your computer to signals that can travel over various communications channels.

A) drive
B) modem
C) network card
D) peripheral device

Question 50

Most Internet users have a(n) ____ IP address, for as long as they remain connected.

A) non-volatile
B) volatile
C) flash
D) dynamic

Question 51

A(n) ____ is a company that maintains Internet computers and telecommunications equipment in order to provide Internet access to businesses, organizations, and individuals.

A) DSS
B) DSL
C) ISDN
D) ISP

Question 52

____, such as MCI, Sprint, or AT&T, supply ISPs with access to high-speed transmission lines that form the backbone of the Internet.

A) DNSs (Domain Name Servers)
B) E-mail Servers
C) NSPs (Network Service Providers)
D) Web Servers

Question 53

A technology called ____ makes it possible for one person's computer to directly access the contents of another person's hard disk.

A) 4TN
B) P2P
C) HTM
D) URL

Question 54

Unlike a dial-up service that is connected only for the duration of the call, a cable Internet service provides a(n) ____ connection.

A) always-on
B) permanent
C) dynamic
D) static

Question 55

____ breaks a message or file into packets.

A) IP (Internet Protocol)
B) TCP (Transmission Control Protocol)
C) ATM (Asynchronous Transfer Mode)
D) SMTP (Simple Mail Transfer Protocol)

Question 56

Under ideal conditions, WiMAX can transmit data at ____.

A) 25 Mbps
B) 70 Mbps
C) 25 Gbps
D) 70 Gbps

Question 57

A domain name ends with an extension that indicates its ____ domain.

A) top-level
B) low-level
C) bottom-level
D) high-level

Question 58

A(n) ____ operates routers, communications equipment, and other network devices that handle the physical aspects of transmitting and receiving data between their subscribers and the Internet.

A) ISP (Internet Service Provider)
B) DSL (Digital Subscriber Line)
C) DSS (Digital Satellite Service)
D) PDA (Personal Digital Assistant)

Question 59

An Internet utility called ____ sends a signal to a specific Internet address and waits for a reply.

A) Traceroute
B) Ping
C) ICMP
D) Pang

Question 60

A(n) ____ modem is a device that changes a computer's signals into a form that can travel over cable TV links.

A) analog
B) extensible
C) cable
D) TV

Question 61

____ allows telephone-style conversations to travel over the Internet to virtually anywhere in the world.

A) E-commerce
B) IP telephony
C) Broadcasting
D) Multicasting

Question 62

What is the range of upstream speeds for portable satellite service?

A) 10-50 Kbps
B) 50-500 Kbps
C) 10-50 Mbps
D) 50-500 Mbps

Question 63

____ transfers files between local and remote host computers.

A) IP (Internet Protocol)
B) TCP (Transmission control Protocol)
C) FTP (File Transfer Protocol)
D) TELNET (Telecommunication Network)

Question 64

____ is a 3G technology that works on GSM and GPRS cellular networks.

A) EV-DO
B) EDGE
C) HSUPA
D) APMS

Question 65

Group messaging communications are referred to as ____.

A) telnet
B) usenet
C) chat
D) client/serving

Question 66

Computer ____ generate massive processing power by using many off-the-shelf personal computers, which work together to achieve processing speeds that rival some of the world s top supercomputers, as with the example of the application shown in the figure above.

A) ports
B) anonymous FTP
C) messaging
D) grids

Question 67

Which of the following is an example of mobile Internet access?

A) Wi-Fi
B) cellular broadband access
C) mobile WiMAX
D) all of the above

Question 68

The figure above illustrates the basic architecture of a(n) ____ computing system.

A) messaging
B) portal
C) grid
D) FTP

Question 69

____, illustrated in the figure above, is an offshoot of grid computing concepts, in which an ad hoc collection of personal computers located anywhere on the Internet can cooperate to complete a task normally handled by monolithic servers or supercomputers.

A) BitTorrent
B) ICANN
C) NAT
D) VPN

Question 70

A(n) ____ is a device that converts analog voice signals into digital data packets.

A) UDP
B) ATA
C) USB
D) VPN

Question 71

All of the following are examples of the kind of software shown in the figure above EXCEPT ____.

A) Windows Live Messenger
B) AOL Instant Messenger
C) Apple iChat
D) Gmail

Question 72

An FTP server runs software that listens on ports ____ for requests coming in from other computers.

A) 15 and 16
B) 8 and 9
C) 50 and 51
D) 20 and 21

Question 73

In the late 1990s, ____ burst onto the national scene when college students became aware of a technology called Napster that provided free access to hit songs.

A) Telnet
B) FTP
C) file sharing
D) Usenet

Question 74

In BitTorrent lingo, a ____ is a client that does not allow other clients to download file pieces.

A) tracker
B) choker
C) leecher
D) swarm

Question 75

____ is a 3G technology developed by Qualcomm and currently deployed by Alltel, Sprint, and Verizon in major U.S. markets.

A) HSUPA
B) EV-DO
C) APMS
D) EDGE

Question 76

In BitTorrent lingo, a _____ is a group of computers temporarily networked to download a file.

A) seeder
B) leecher
C) swarm
D) tracker

Question 77

____ is a technology in which a broadband Internet connection is used to place telephone calls instead of the regular phone system.

A) FTP
B) VoIP
C) Grid computing
D) VPN

Question 78

Which of the following is the slowest phone for transmitting data?

A) HSUPA
B) GSM/GPRS
C) EV-DO
D) EDGE

Question 79

____ is a 3.5G technology with theoretical maximum speeds in excess of 5 Mbps.

A) HSUPA
B) EV-DO
C) EDGE
D) APMS

Question 80

____ management software divides computational problems into pieces that are farmed out to individual computers for processing.

A) Grid
B) Packet
C) Socket
D) Network