Chapter 7 MIS

Wi-Fi.
The 802.11 set of standards is known as:
WLAN.
WAN.
WSN.
Wi-Fi.
WiMax.
True
More than 50% of U.S. Internet users access the Internet via mobile devices.
True
False
router
A(n) ________ is a device that forwards packets of data through different networks, ensuring that the data gets to the right address.
telnet
hub
modem
router
packet
Packet switching requires point-to-point circuits.
Which of the following is not a characteristic of packet switching?
Packets include data for checking transmission errors.
Packets travel independently of each other.
Packets are reassembled into the original message when they reach their destinations.
Packet switching requires point-to-point circuits.
Packets are routed through many different paths.
ISP
A(n) ________ is a commercial organization with a permanent connection to the Internet that sells temporary connections to retail subscribers.
RSS
FTP
NFP
WAN
ISP
create more IP addresses.
IPv6 is being developed in order to
allow for different levels of service.
update the packet transmission protocols for higher bandwidth.
create more IP addresses.
support Internet2.
reduce excess IP addresses.
Bluetooth.
The most appropriate wireless networking standard for creating PANs is
Wi-Fi.
I-mode.
RFID.
IEEE 802.11b.
Bluetooth.
RFIDs require line-of-sight contact to be read.
Which of the following statements about RFID is not true?
RFID tags and antennas come in a variety of shapes and sizes.
RFIDs require line-of-sight contact to be read.
RFIDs transmit only over a short range.
RFIDs use an antenna to transmit data.
Microchips embedded in RFIDs are used to store data.
client/server computing, packet switching, and the development of communications standards for linking networks and computers
The Internet is based on which three key technologies?
TCP/IP, HTML, and HTTP
client/server computing, packet switching, and the development of communications standards for linking networks and computers
TCP/IP, HTTP, and packet switching
client/server computing, packet switching, and HTTP
e-mail, instant messaging, and newsgroups
30 miles.
The WiMax standard can transmit up to a distance of approximately
70 miles.
30 miles.
500 meters.
5 miles.
30 meters.
False
A computer network consists of at least three computers.
True
False
True
Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire.
True
False
False
An NOS must reside on a dedicated server computer in order to manage a network.
True
False
False
TCP/IP was developed in the 1960s to enable university scientists to locate other computers on the Internet.
True
False
wide area network.
A network that covers entire geographical regions is most commonly referred to as a(n)
wide area network.
MAN.
intranet.
local area network.
peer-to-peer network.
operate over existing telephone lines to carry voice, data, and video.
Digital subscriber lines
are assigned to every computer on the Internet.
are very-high-speed data lines typically leased from long-distance telephone companies.
operate over existing telephone lines to carry voice, data, and video.
operate over coaxial cable lines to deliver Internet access.
have up to twenty-four 64-Kbps channels.
eight
Bluetooth can be used to link up to ________ devices within a 10-meter area using low-power, radio-based communication.
eight
five
twenty
two
fifteen
intelligent agent
Shopping bots use ________ software for searching the Internet.
comparison
Web 3.0
SEO
intelligent agent
Web 2.0
digital
A(n) ________ signal is a discrete, binary waveform that transmits data coded into two discrete states such as 1-bits and 0-bits.
analog
digital
T1
broadband
modulated
the Internet of things.
The concept of a future Web in which it is commonplace for everyday objects to be connected, controlled or monitored over the Internet is called
the Semantic Web.
a 3-D Web.
Internet2.
the Internet of things.
Web 2.0.
are high-speed, leased data lines providing guaranteed service levels.
T1 lines
are high-speed, leased data lines providing guaranteed service levels.
operate over coaxial lines to deliver Internet access.
have up to twenty-four 64-Kbps channels.
operate over existing telephone lines to carry voice, data, and video.
do not provide guaranteed service levels, but simply “best effort.”
is an encrypted private network configured within a public network.
A VPN
provides secure, encrypted communications using Telnet.
is an Internet-based service for delivering voice communications.
is a proprietary networking service technology developed by individual corporations.
is an encrypted private network configured within a public network.
is more expensive than a dedicated network.
True
Fiber-optic cable is more expensive and harder to install than wire media.
True
False
top-level domain.

The child domain of the root is the

second-level domain.
mid-tier domain.
host name.
domain extension.
top-level domain.

bar code.
All of the following are physical components of an RFID system except
radio transmitters.
tags.
bar code.
a stationary or handheld device.
antenna.
packet switching.
The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called
ATM.
multiplexing.
packet shifting.
packet routing.
packet switching.
predicts what you are looking for as you enter words into the query box.
“Predictive search” in Google’s search engine
uses a knowledge graph of what similar people searched on to predict your search interests.
uses a semantic approach to predict what you are looking for.
predicts what you are looking for as you enter words into the query box.
uses a tracking service and cookies on your browser to predict search results.
maintains a history of your searches and then predicts what you will search on next.
Unified communications
________ integrate disparate channels for voice communications, data communications, instant messaging, e-mail, and electronic conferencing into a single experience.
Unified communications
Modems
Virtual private networks
Wireless networks
Intranets
azimuth-interactive
In the domain name “http://books.azimuth-interactive.com”, which element is the second-level domain?
none; there is no second-level domain in this name
azimuth-interactive
books.azimuth-interactive
com
books
DNS
What service converts IP addresses into more recognizable alphanumeric names?
HTML
DNS
FTP
HTTP
IP
There are hundreds of search engines vying for user attention, with no clear leader having yet emerged.
Which of the following statements is not true about search engines?
Users are increasingly using search engines on mobile devices.
They are monetized almost exclusively by search engine marketing.
There are hundreds of search engines vying for user attention, with no clear leader having yet emerged.
They are arguably the Internet’s “killer app.”
They have solved the problem of how users instantly find information on the Internet.
peer-to-peer network
Which type of network would be most appropriate for a business that comprised three employees and a manager located in the same office space, whose primary need is to share documents?
SAN
domain-based LAN
MAN
WAN
peer-to-peer network
analog
Which signal types are represented by a continuous waveform?
analog
RFID
laser
digital
optical
True
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.
True
False
False
Circuit switching makes much more efficient use of the communications capacity of a network than does packet switching.
True
False
HTTP
Web browser software requests Web pages from the Internet using which protocol?
FTP
HTTP
DNS
URL
HTML
True
VoIP technology delivers voice information in digital form using packet switching.
True
False
Search engine marketing
________ monetizes the value of the data stored by search engines.
Search engine marketing
TCP/IP
WiMax
Wireless sensor networks
RSS
tunneling
Which process is used to protect transmitted data in a VPN?
VOIP
chaining
PPP
tunneling
packet-switching
False
RFID technology is being gradually replaced by less costly technologies such as WSNs.
True
False
difference between the highest and lowest frequencies that can be accommodated on a single channel.
Bandwidth is the
number of cycles per second that can be sent through a medium.
geographical distance spanned by a network.
number of frequencies that can be broadcast through a medium.
difference between the highest and lowest frequencies that can be accommodated on a single channel.
total number of bytes that can be sent through a medium per second.
True
Mobile search makes up at least 50% of all Internet searches.
True
False
True
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.
True
False
True
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.
True
False
uniform resource locator.
Together, a protocol prefix, a domain name, a directory path, and a document name, are called a(n)
uniform resource locator.
IP address.
child domain.
root domain.
third-level domain.
TCP/IP
Which protocol is the Internet based on?
HTTP
FTP
DNS
packet-switching
TCP/IP
GSM
Which digital cellular standard is used widely throughout the world except the United States?
WLAN
4G
CDMA
GSM
LTD
Web server
A(n) ________ is software for locating and managing stored Web pages.
net server
hub
Web server
modem
router
bps.
The total amount of digital information that can be transmitted through any telecommunications medium is measured in
Hertz.
bps.
baud.
gigaflops.
RPMs.
LAN
Which type of network is used to connect digital devices within a half-mile or 500-meter radius?
LAN
Wi-Fi
SAN
MAN
WAN
application, transport, Internet, and network interface
What are the four layers of the TCP/IP reference model?
application, hardware, Internet, and network interface
physical, application, Internet, and network interface
application, transport, Internet, and network interface
physical, application, transport, and network interface
software, hardware, network interface, Internet
4G
Which of the following is the first generation of cellular systems suitable for watching videos?
2G
2.5G
3.5G
4G
3G
False
Central large mainframe computing has largely replaced client/server computing.
True
False
False
A hub is a networking device that connects network components and is used to filter and forward data to specified destinations on the network.
True
False
True
Telephone networks are fundamentally different from computer networks.
True
False
MAN.
A network that spans a city, and sometimes its major suburbs as well, is called a
LAN.
WSN.
MAN.
WAN.
CAN.
Smartphones
________ combine the functionality of a cell phone with the computing of a laptop.
Netbooks
Smartphones
E-readers
Tablets
iPods
LTE and WiMax
4G networks use which standards?
LTE and WiMax
T-Mobile and AT&T
GSM and LTD
CDMA and PAN
LTE and LTD
Apache HTTP Server.
The most common Web server today is
WebSTAR.
Apache HTTP Server.
Netscape Server.
Microsoft IIS.
IBM HTTP Server.
a standard set of rules and procedures for control of communications in a network.
In a telecommunications network architecture, a protocol is
a device that handles the switching of voice and data in a local area network.
a communications service for microcomputer users.
a pathway through which packets are routed.
a standard set of rules and procedures for control of communications in a network.
the main computer in a telecommunications network.
network service providers.
The backbone networks of the Internet are typically owned by long-distance telephone companies called
backbone providers.
enhanced service providers.
network service providers.
regional network providers.
internet bulk providers.
SEO.
The process of employing techniques to help a Web site achieve a higher ranking with the major search engines is called
VPN.
SEM.
RSS.
SEO.
IAB.
a modem.
To use the analog telephone system for sending digital data, you must also use
a router.
DSL.
a modem.
twisted wire.
TCP/IP.
disassembling and reassembling of packets during transmission.
In TCP/IP, IP is responsible for
disassembling and reassembling of packets during transmission.
moving packets over the network.
establishing an Internet connection between two computers.
breaking messages down into packets.
sequencing the transfer of packets.
True
Wikis allow visitors to change or add to the original posted material.
True
False
access point
A(n) ________ is a box consisting of a radio receiver/transmitter and antennas that links to a wired network, router, or hub.
WiMax receiver
RFID receiver
hotspot
access point
hub
True
The Domain Name System (DNS) converts domain names to IP addresses.
True
False
switch.
The device that acts as a connection point between computers and can filter and forward data to a specified destination is called a(n)
modem.
hub.
switch.
NIC.
router.
hotspots.
One or more access points positioned on a ceiling, wall, or other strategic spot in a public place to provide maximum wireless coverage for a specific area are referred to as
wireless hubs.
hotspots.
touch points.
hot points.
netcenters.
True
Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms.
True
False
chat
Instant messaging is a type of ________ service.
network
wireless
chat
e-mail
cellular
False
The number of cycles per second that can be sent through any telecommunications medium is measured in kilobytes.
True
False
IAB
Which organization helps define the overall structure of the Internet?
IAB
W3C
none (no one “owns” the Internet)
The Department of Commerce (U.S.)
ICANN
RSS
What technology allows people to have content pulled from Web sites and fed automatically to their computers?
FTP
IPv6
RSS
HTTP
Bluetooth
Facebook
Which of the following is not one of the top five search engines?
Yahoo
Microsoft Bing
Google
Ask
Facebook
circuit-switched
The telephone system is an example of a ________ network.
peer-to-peer
wireless
circuit-switched
client/server
packet-switched
managing the supply chain
Based on your reading of the examples in the chapter, what would be the best use of RFID for a business?
lowering network costs
improving employee engagement
managing the supply chain
logging transactions
enabling client communication
second generation
Web sites that enable users to share information, collaborate, and create new services and content are called ________ sites.
second generation
mashup
first generation
third generation
new wave
peer-to-peer
Which type of network treats all processors equally and allows peripheral devices to be shared without going to a separate server?
wireless
peer-to-peer
MAN
LAN
Windows domain network
Convergence
telephone networks and computer networks moving into single digital networks using Internet standards.
Broadband
connections provided by telephone and cable tv companies running at 1 to 15 million bits per second.
Network operating system (NOS)
routes and manages communications on the network and coordinates network resources.
Hubs
simple devices that connect network components, sending a packet of data to all other connected devices.
Switch
can filter and forward data to a specified destination on the network.
Router
a communications processor that routes packets of data through different networks, ensuring that the data sent gets to the correct address.
Software defined networking (SDN)
a networking approach in which many of the control functions are managed by one central program, which can run on inexpensive commodity servers that are separate from the network devices themselves.
Client/server computing, packet switching, TCP/IP and Connectivity
Key digital networking technologies.
Client/Server computing
a distributed computing model in which some of the processing power is located within small, inexpensive client computers and resides literally on desktops or laptops or in handheld devices.
Packet switching
a method of slicing digital messages into parcels called packets, sending the packets along different communication paths as they become available and then reassembling the packets once they arrive at their destination.
Packets
small fixed bundles of data.
Protocol
a set of rules and procedures governing transmission of information between two points in a network.
Transmission Control Protocol/ Internet Protocol (TCP/IP)
uses a suite of protocols/
TCP
establishes a connection between the computers, sequences the transfer of packets, and acknowledges the packets sent.
IP
is responsible for the delivery of packets and includes the disassembling and reassembling of packets during the transmission.
Application layer, transport layer, internet layer, network interface layer
The layers of the TCP/IP Reference Model
Application layer
enables client application programs to access the other layers and defines the protocols that applications use to exchange data.
Transport layer
responsible for providing the application layer with communication and packet services.
Internet layer
responsible for addressing, routing, and packaging data packets called IP datagrams.
Network Interface layer
responsible for placing packets on and receiving them from the network medium, which could be any networking technology.
TCP/IP
Two computers using _________ can communicate even if they are based on different hardware and software platforms.
Analog signal
a continuous waveform that passes through a communications medium and has been used for voice communication.
Digital signal
a discrete, binary waveform rather than a continuous waveform.
Modem
connects your computer to the internet by using a cable network.
Modulator demodulator
Modem
Local area network, Metropolitan area network, Wide area network
Types of networks
LANs
connect personal computers and other digital devices within a half mile or 500 meter radius.
LANs
typically connect a few computers in a small office, all the computers in one building, or all the computers in several buildings in close proximity.
Peer to peer network
treats all processors equally and is used primarily in small networks with 10 or fewer users.
WANs
span broad geographical distances, entire regions, states, continents, or the entire globe.
Internet
the most powerful WAN.
WANs
computers connect through public networks or through leased lines or satellite, through telephone systems or private cable systems.
MANs
a network that spans a metropolitan area, usually a city and its major suburbs.
Hertz
the measurement for the number of cycles per second that can be sent through telecommunications medium.
One hertz
one cycle of the medium.
Bps
Bits per second, rate of information transmitted.
Bandwidth
The range of frequencies that can be accommodated on a particular telecommunications channel.
Internet
the world’s most extensive public communication system.
Internet service provider (ISP)
a commercial organization with a permanent connection to the Internet that sells temporary connections to retail subscribers.
Digital subscriber line (DSL)
operate over existing telephone lines to carry voice, data, and video at transmission rates ranging from 385 Kbps all the way up to 40 Mbps.
Cable internet connections
use digital cable coaxial lines to deliver high speed Internet access to homes and businesses.
T1 and T3 lines
leased, dedicated lines suitable for businesses or government agencies requiring high-speed guaranteed service levels.
Internet Protocol Address (IP)
every computer on the Internet is assigned a unique 32 bit number.
Domain name system (DNS)
converts domain names to IP addresses.
Domain name
the English like name that corresponds to the unique 32 bit numeric IP address for each computer connected to the internet.
Internet Architecture Board (IAB)
helps define the overall structure of the Internet.
Internet Corporation for Assigned Names and Numbers (ICANN)
manages the domain name system.
World Wide Web Consortium (W3C)
sets the Hypertext Markup Language and other programming standards for the web.
Internet Protocol version 6 (IPv6)
contains 128 bit addresses, or more than a quadrillion possible unique addresses.
Internet2
an advanced networking consortium representing more than 500 universities, private businesses, and government agencies working with 66,000 institutions across the United States and international networking partners from more than 100 countries.
Network service providers
own trunk lines
Email, chatting and instant messaging, electronic discussion groups, Telnet, File Transfer Protocol, Web
Internet services
Email
enables messages to be exchanged from computer to computer
Chatting
enables two or more people who are simultaneously connected to the Internet to hold live, interactive conversations.
Instant messaging
a type of chat service that enables participants to create their own private chat channels.
Telnet
logging on to one computer system and doing work on another
File Transfer Protocol (FTP)
Transferring files from computer to computer
World Wide Web
Retrieving, formatting, and displaying information by using hypertext links.
Newsgroups
discussion groups on electronic bulletin boards.
Voice over IP (VoIP)
delivers voice information in digital form using packet switching, avoiding the tolls charged by local and long-distance telephone networks.
VoIP
enables calls to be made and received with computer equipped with a microphone and speakers.
Unified communications
integrates disparate channels for voice communications, data communications, instant messaging, email, and electronic conferencing into a single experience by which users can seamlessly switch back and forth between different communication modes.
Virtual private network (VPN)
a secure, encrypted, private network that has been configured within a public network to take advantage of the economics of scale and management facilities of large networks.
Tunneling
a process in which packets of data are encrypted and wrapped inside IP packets.
Website
a collection of web pages linked to a home page.
Hypertext Transfer Protocol (HTTP)
the communications standard that transfers pages on the web.
Uniform resource locator (URL)
the web address that help the browser track down the requested page.
Web servers
software for locating and managing web pages
Search engines
finds useful information on the web nearly instantly.
Mobile search
made up 50 percent of all searches in 2015.
Semantic search
a search engine that is capable of understanding what we are really looking for.
Predictive search
guesses what you are looking form and suggests search terms as you type your search words.
Social search
provides fewer, more relevant, and trustworthy search results based on a person’s network of social contacts.
Visual web
websites such as Pinterest, where pictures replace text documents.
Shopping bots
use intelligent agent software for searching the Internet for shopping information.
Search engine marketing
the sponsored links that appear when you do a search.
Search engine optimization (SEO)
the process of improving the quality and volume of web traffic to a website by employing a series of techniques that help a website achieve a higher ranking with the major search engines when certain keywords and phrases are put into the search field.
Web 2.0
Second generation interactive Internet based services that allow people to collaborate, share information, and create new services and content online.
Interactivity, real time user control, social participation, user generated content
the four defining features of Web 2.0
Blog
a personal website that typically contains a series of chronological entries by its author and links to related web pages.
Microblogging
a type of blogging that features short posts of 140 characters or fewer.
Blogosphere
The totality of blog related websites.
RSS
pulls specified content from websites and feeds it automatically to users’ computers.
Wikis
collaborative websites on which visitors can add, delete, or modify content, including the work of previous authors.
Social networking
enables users to build communities of friends and professional colleagues.
Internet of Things
based on billions of Internet connected sensors throughout our physical world.
Personal area networks (PAN)
links up to eight devices within a 10 meter area using low power, radio based communication.
WiFi
wireless devices communicate with a wired LAN using access points.
Hotspots
locations with one or more access points providing wireless Internet access and are often in public places.
WiMax
has a wireless range of up to 31 miles and transmission speed of up to 75 Mbps.
Radio frequency identification (RFID)
uses tiny tags with embedded microchips containing data about an item and its location to transmit radio signals over a short distance to the readers.
Wireless sensor networks (WSNs)
networks of interconnected wireless devices that are embedded in the physical environment to provide measurements of many points over large spaces.
Wireless sensor networks
major sources of Big Data and fueling Internet of Things