question

Telephone networks are fundamentally different from computer networks.

answer

True

question

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

answer

True

question

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

answer

False

question

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

answer

False

question

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.

answer

True

question

A computer network consists of at least three computers.

answer

False

question

Central large mainframe computing has largely replaced client/server computing

answer

False

question

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

answer

False

question

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

answer

True

question

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

answer

False

question

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

answer

True

question

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

answer

True

question

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

answer

False

question

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

answer

False

question

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

answer

True

question

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

answer

True

question

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.

answer

True

question

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

answer

False

question

Mobile search makes up 20% of all Internet searches.

answer

True

question

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

answer

False

question

The Internet is based on which three key technologies?

answer

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

question

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

answer

packet switching

question

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

answer

switch.

question

The telephone system is an example of a ________ network.

answer

circuit-switched

question

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

answer

Packet switching requires point-to-point circuits.

question

In TCP/IP, IP is responsible for

answer

disassembling and reassembling of packets during transmission.

question

In a telecommunications network architecture, a protocol is

answer

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

question

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

answer

application, transport, Internet, and network interface

question

Which signal types are represented by a continuous waveform?

answer

analog

question

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

answer

a modem.

question

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

answer

LAN

question

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

answer

peer-to-peer

question

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?

answer

Peer-to-peer network

question

WSNs are designed for

answer

monitoring the physical environment

question

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

answer

bar code.

question

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

answer

MAN.

question

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

answer

wide area network

question

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

answer

the Web of things.

question

Bandwidth is the

answer

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

question

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

answer

bps

question

Digital subscriber lines

answer

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

question

T1 lines

answer

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

question

Which protocol is the Internet based on?

answer

TCP/IP

question

What service converts IP addresses into more recognizable alphanumeric names?

answer

DNS

question

The child domain of the root is the

answer

top-level domain.

question

Which organization helps define the overall structure of the Internet?

answer

IAB

question

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

answer

telnet

question

Instant messaging is a type of ________ service.

answer

chat

question

Which of the following statements about RFID is not true?

answer

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

question

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

answer

Unified communications

question

A VPN

answer

is an encrypted private network configured within a public network.

question

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

answer

HTTP

question

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

answer

uniform resource locator.

question

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

answer

Web 2.0, second generation

question

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

answer

Web 3.0

Mis Chapter 7 Analysis

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