MIS Chapter 7

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

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

True

Instant messaging is a type of ________ service.

chat

The telephone system is an example of a ________ network.

circuit-switched

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

Bandwidth is the

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

In TCP/IP, IP is responsible for

disassembling and reassembling of packets during transmission.

A VPN

is an encrypted private network configured within a public network.

WSNs are designed for

monitoring the physical environment

Digital subscriber lines

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

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

peer-to-peer

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.

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

telnet

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.

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

False

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

False

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

False

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

False

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

False

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

HTTP

What service converts IP addresses into more recognizable alphanumeric names?

DNS

Which protocol is the Internet based on?

TCP/IP

A computer network consists of at least three computers.

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

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

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

Which organization helps define the overall structure of the Internet?

IAB

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

LAN

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

MAN.

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

Packet switching requires point-to-point circuits.

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

Which of the following statements about RFID is not true?

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

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

True

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

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

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

Mobile search makes up 20% of all Internet searches.

True

Telephone networks are fundamentally different from computer networks.

True

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

True

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

Unified communications

Web sites that enable users to share information, collaborate, and create new services and content are called ________ sites.

Web 2.0, second generation

Making web more "intelligent" and intuitive, increased cloud computing & mobile computing

Web 3.0

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

a modem.

In a telecommunications network architecture, a protocol is

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

Which signal types are represented by a continuous waveform?

analog

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

application, transport, Internet, and network interface

T1 lines

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

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

bar code.

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

bps

The child domain of the root is the

top-level domain.

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

uniform resource locator.

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

wide area network