MIS Chapter 7

Telephone networks are fundamentally different from computer networks.

True

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

True

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

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.

False

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

A computer network consists of at least three computers.

False

Central large mainframe computing has largely replaced client/server computing

False

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

False

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

True

Over 80% of U.S. Internet users access the Internet via mobile devices.

False

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

True

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

True

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

False

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

False

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

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

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

TCP/IP was developed in the 1960s to enable university scientists to locate other computers on the Internet

False

Mobile search makes up 20% of all Internet searches.

True

RFID technology is being gradually replaced by less costly technologies such as WSNs.

False

The Internet is based on which three key technologies?

client/server computing, packet switching, and the development of communications standards for linking networks and computers

The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called

packet switching

The device that acts as a connection point between computers and can filter and forward data to a specified destination is called a(n)

switch.

The telephone system is an example of a ________ network.

circuit-switched

Which of the following is not a characteristic of packet switching?

Packet switching requires point-to-point circuits.

In TCP/IP, IP is responsible for

disassembling and reassembling of packets during transmission.

In a telecommunications network architecture, a protocol is

a standard set of rules and procedures for control of communications in a network.

What are the four layers of the TCP/IP reference model?

application, transport, Internet, and network interface

Which signal types are represented by a continuous waveform?

analog

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

a modem.

Which type of network is used to connect digital devices within a half-mile or 500-meter radius?

LAN

Which type of network treats all processors equally, and allows peripheral devices to be shared without going to a separate server?

peer-to-peer

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?

Peer-to-peer network

WSNs are designed for

monitoring the physical environment

All of the following are physical components of an RFID system except

bar code.

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

MAN.

A network that covers entire geographical regions is most commonly referred to as a(n)

wide area network

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 Web of things.

Bandwidth

the difference between the highest and lowest frequencies that can be accommodated on a single channel.

The total amount of digital information that can be transmitted through any telecommunications medium is measured in

bps

Digital subscriber lines

operate over existing telephone lines to carry voice, data, and video.

T1 lines

are high-speed, leased data lines providing guaranteed service levels.

Which protocol is the Internet based on?

TCP/IP

What service converts IP addresses into more recognizable alphanumeric names?

DNS

The child domain of the root is the

top-level domain.

Which organization helps define the overall structure of the Internet?

IAB

Which of the following services enables logging on to one computer system and working on another?

telnet

Instant messaging is a type of ________ service.

chat

Which of the following statements about RFID is not true?

RFIDs require line-of-sight contact to be read.

________ integrate(s) disparate channels for voice communications, data communications, instant messaging, e-mail, and electronic conferencing into a single experience.

Unified communications

A VPN

is an encrypted private network configured within a public network.

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

HTTP

Together, a protocol prefix, a domain name, a directory path, and a document name, are called a(n)

uniform resource locator.

The most common Web server today, controlling 59 percent of the market, is:

Apache HTTP server

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

RSS

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

SEO

Which of the following statements is not true about search engines?

There are hundreds of search engines vying for user attention, with no clear leader having yet emerged.

Which of the following is the first generation of cellular systems suitable for wireless broadband Internet access?

3G

The most appropriate wireless networking standard for creating PANs is:

Bluetooth

Bluetooth can be used to link up to ________ devices within a 10-meter area using low-power, radio-based communication.

eight

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

Tunneling

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:

hotspots

The 802.11 set of standards is known as:

Wi-Fi

The WiMax standard can transmit up to a distance of approximately:

30 Miles

Passive RFID tags:

have a range of several feet

Based on your reading of the examples in the chapter, what would be the best use of RFID for a business?

Managing the supply chain

The Internet is based on the following three key technologies?

Client/server computing, packet switching, and the development of widely used communications standards for linking networks and computers.

The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called:

Packet switching

Which digital cellular standard is used widely throughout the world except the United States?

GSM

In the domain name "http://books.azimuth-interactive.com", which element is the second-level domain?

azimuth-interactive

4G networks are also known as ________ networks.

LTD

IPv6 is being developed in order to

create more IP addresses.