Business Data Communications & Networking 14th edition Chapter 1 Test Bank

Due to advances in high speed communication networks, the information lag, or the time it takes for information to be disseminated around the world, has been significantly shortened. T/F

True

Difficulty: Easy

Reference: Introduction

L.O.: Be aware of the applications of data communications networks

It is not uncommon for companies to end up spending more money on network management and security tasks than they do on the actual computer equipment itself. T/F

True

Difficulty: Medium

Reference: Introduction

L.O.: Be aware of the three fundamental questions this book answers

The most frequently used database in organizations is Microsoft Access. T/F

False

Difficulty: Medium

Reference: Introduction

L.O.: Be aware of the three fundamental questions this book answers

Telecommunications is the transmission of voice and video as well as data and usually implies transmitting a longer distance than in a data communication network. T/F

True

Difficulty: Medium

Reference: Data Communications Networks

L.O.: Be familiar with the major components of and types of networks

A local area network (LAN) connects other LANs and backbone networks (BNs) located in

different areas to each other and to wide area networks in a span from 3 to 30 miles. T/F

False

Difficulty: Medium

Reference: Data Communications Networks

L.O.: Be familiar with the major components of and types of networks

An intranet is a LAN that uses Internet technologies and is publicly available to people

outside of the organization T/F

False

Difficulty: Medium

Reference: Data Communications Networks

L.O.: Be familiar with the major components of and types of networks

A car manufacturer may give access to certain portions of its network to some of its suppliers

via the Internet. This is an example of an extranet T/F

True

Difficulty: Medium

Reference: Data Communications Networks

L.O.: Be familiar with the major components of and types of networks

There are four computers that make networks what they are T/F

False

Difficulty: Easy

Reference: Data Communications Networks

L.O.: Be familiar with the major components of and types of networks

About half of all routers run Cisco IOS (Inter-operating system) that was specifically created for routers T/F

False

Difficulty: Easy

Reference: Data Communications Networks

L.O.: Be familiar with the major components of and types of networks

The OSI model is currently the most widely implemented network model used to develop and build networks of any size, including the Internet itself T/F

False

Difficulty: Medium

Reference: Network Models

L.O.: Understand the role of network layers

The data link layer has a global responsibility T/F

False

Difficulty: Medium

Reference: Network Models

L.O.: Understand the role of network layers

The transport layer has a local responsibility T/F

False

Difficulty: Medium

Reference: Network Models

L.O.: Understand the role of network layers

The network layer performs the same functions in both the OSI and Internet models and is responsible for routing messages from the source computer to the destination computer. T/F

True

Difficulty: Easy

Reference: Network Models

L.O.: Understand the role of network layers

In the OSI model, the application layer provides a set of utilities for applications and is the end user’s access to the network T/F

True

Difficulty: Medium

Reference: Network Models

L.O.: Understand the role of network layers

The application layer is the seventh layer of the Internet model and specifies the type of connection and the electrical signals that pass through it T/F

False

Difficulty: Easy

Reference: Network Models

L.O.: Understand the role of network layers

At the transport layer in the Internet model, TCP is responsible for breaking large files received from the application layer into smaller messages and opening a connection to a server for transferring them T/F

True

Difficulty: Hard

Reference: Network Models

L.O.: Understand the role of network layers

Ethernet is an example of a network layer protocol. T/F

False

Difficulty: Easy

Reference: Network Standards

L.O.: Be familiar with the role of network standards

Data communication standards enable each layer in the sending computer to communicate with its corresponding layer in the receiving computer. T/F

True

Difficulty: Easy

Reference: Network Standards

L.O.: Be familiar with the role of network standards

The specification stage of the de jure standardization process consists of developing nomenclature and identifying the problems to be addressed T/F

True

Difficulty: Medium

Reference: Network Standards

L.O.: Be familiar with the role of network standards

ANSI is a voting participant in the ISO T/F

True

Difficulty: Easy

Reference: Network Standards

L.O.: Be familiar with the role of network standards

IoT technologies are restricted to consumer use. T/F

False

Difficulty: Easy

Reference: Future Trends

L.O.: Be aware of three key trends in communications and networking

All IoT technologies are connected to the Internet by WIFI. T/F

False

Difficulty: Easy

Reference: Future Trends

L.O.: Be aware of three key trends in communications and networking

Data communications and networking can be considered as a global area of study because:

a. new technologies and applications emerge from a variety of countries and spread around

the world

b. the technologies enable global communication

c. the political and regulatory issues are exactly the same in every country

d. a and b

e. none of the above

Answer: d

Difficulty: Easy

Reference: Introduction

L.O.: Be familiar with the major components of and types of networks

The _____ Industrial Revolution is currently underway.

a. first

b. second

c. third

d. fourth

e. fifth

Answer: d

Difficulty: Easy

Reference: Introduction

L.O.: Be familiar with the major components of and types of networks

IT has four core capabilities within organizational settings. Which of the following is not one

of these?

a. Verifying data

b. Storing and retrieving data

c. Protecting data

d. Automating data operations

e. Analyzing and visualizing data

a

Which of the following is not true about a server?

a. stores data and software that can be accessed by the client.

b. may be a personal computer or a mainframe on the network.

c. in client/server computing they work together over the network with client computers to

support the business application.

d. can only perform one function on a network.

e. stores documents and graphics that can be accessed from any Web browser

d

Networks that are designed to connect similar computers that share data and software with each other are called:

a. client/server networks

b. peer-to-peer networks

c. host networks

d. client networks

e. local area networks

b

The function of the file server is to :

a. store data and software programs that can be used by client computers on the network.

b. manage all printing requests from clients on the network.

c. transfer e-mail messages to other servers on the network.

d. store HTML documents for an Internet or intranet web site.

e. coordinate the communication of client and servers on the network.

a

A local area network is:

a. a large central network that connects other networks in a distance spanning exactly 5

miles.

b. a group of personal computers or terminals located in the same general area and

connected by a common cable (communication circuit) so they can exchange information

such as a set of rooms, a single building, or a set of well-connected buildings.

c. a network spanning a geographical area that usually encompasses a city or county area (3

to 30 miles).

d. a network spanning a large geographical area (up to 1000s of miles).

e. a network spanning exactly 10 miles with common carrier circuits

b

A backbone network is:

a. a high speed central network that connects other networks in a distance spanning up to

several miles.

b. a group of personal computers or terminals located in the same general area and

connected by a common cable (communication circuit) so they can exchange

information.

c. a network spanning a geographical area that usually encompasses a city or county area (3

to 30 miles).

d. a network spanning a large geographical area (up to 1000s of miles).

e. a network spanning exactly 200 miles with common carrier circuits

a

Which of the following is not a property of a WAN:

a. connects backbone networks and MANS.

b. spans hundreds or thousands of miles

c. provides data transmission speeds from 56Kbps to 10Gbps.

d. connects a group of computers in a small geographic area such as room, floor, building or

campus.

e. uses leased lines from IXCs like ATT, MCI, and Sprint.

d

A(n) _________ is a LAN that uses the same technologies as the Internet but is open to only

those inside the organization.

a. WAN

b. BN

c. extranet

d. intranet

e. MAN

d

A(n) _________ is a LAN that uses the same technologies as the Internet but is provided to

invited users outside the organization who access it over the Internet.

a. WAN

b. BN

c. extranet

d. intranet

e. MAN

c

A/n _____ is a group of computers located in the same general area.

a. local area network

b. backbone network

c. wide area network

d. intranet

e. extranet

a

A/n _____ is a large, central network connecting several LANs, BNs, MANs, and WANs.

a. local area network

b. backbone network

c. wide area network

d. intranet

e. extrane

b

A/n _____ connect BNs and MANs.

a. local area network

b. backbone network

c. wide area network

d. intranet

e. extranet

c

A/n _____ is a LAN that uses the same technologies as the Internet but is open to only those

inside the organization.

a. local area network

b. backbone network

c. wide area network

d. intranet

e. extranet

d

A/n _____ uses the same technologies as the Internet but is provided to invited users outside

the organization who access it over the Internet.

a. local area network

b. backbone network

c. wide area network

d. intranet

e. extranet

e

Your college provides a special high-speed network for students that can only be accessed on

campus. This is a _____.

a. local area network

b. backbone network

c. wide area network

d. intranet

e. extranet

d

Which layer of the OSI model is responsible for ensuring that all packets sent are received by

the destination station by dealing with end-to-end issues?

a. presentation

b. transport

c. physical

d. session

e. application

b

Which layer of the OSI model is responsible for ensuring flow control so that the destination

station does not receive more packets that it can process at any given time?

a. presentation

b. transport

c. physical

d. session

e. application

b

The ____________ layer of the OSI model is responsible for data format translation.

a. session

b. presentation

c. physical

d. application

e. transport

b

In the Internet model, the application layer corresponds to the ________ layer(s) of the OSI

model.

a. data link and network

b. session, presentation and application

c. application layer

d. application and presentation

e. network, transport and presentation

b

The fourth layer of the OSI model is called the __________ layer.

a. network

b. transport

c. session

d. data link

e. presentation

b

__________ is an orderly close to a dialogue between end users.

a. Session termination

b. Physical bits

c. Frame overhead

d. Packet encapsulation

e. Message encryption

a

The _________ layer performs error checking which is redundant to some extent with the

function of the _________ layer.

a. application, presentation

b. physical, data link

c. transport, data link

d. presentation, transport

e. network, physical

c

Which is not a function of the physical layer:

a. transmission of bits.

b. defining the rules by which one and zeroes are transmitted.

c. providing error-free transmission of data.

d. providing the physical connection between sender and receiver.

e. specifying the type of connection and type of signals, waves or pulses that pass through

it.

c

The _________ layer is responsible for routing of messages from the sender to the final

destination.

a. data communication layer

b. resident layer

c. application layer

d. network layer

e. physical layer

d

Which of the following is not a function of the data link layer?

a. deciding when to transmit messages over the media

b. formatting the message by indicating where messages start and end, and which part is the

address

c. detecting and correcting any errors that have occurred in the transmission of the message

d. specifying the type of connection, and the electrical signals, radio waves, or light pulses

that pass through it

e. controlling the physical layer by determining when to transmi

d

Which of the following is a function of the transport layer?

a. linking the physical layer to the network layer

b. formatting messages by indicating where they start and end

c. deciding which route the message should take

d. breaking long messages into several smaller messages

e. specifying the type of connection and the electrical signals, radio waves, or light pulses

that pass through it

d

Which of the following is a term used to group together the physical and data link layers?

a. Internetwork layers

b. Hardware layers

c. Software layers

d. Middleware layers

e. Application layers

b

Which of the following would be a standard or protocol used at the Data Link layer of the

Internet or OSI model?

a. IP

b. TCP

c. Ethernet

d. HTTP

e. FTP

c

In which layer of the Internet model would the HTTP protocol be used?

a. physical

b. application

c. transport

d. network

e. data link

b

A(n) _____________ is a set of rules that determine what a layer would do and provides a

clearly defined set of messages that software at the layer needs to understand.

a. agreement

b. specification

c. protocol

d. regulation

e. policy

c

The network layer of the Internet model uses the _____________ protocol to route messages

though the network.

a. TCP

b. HTTP

c. FTP

d. SMTP

e. IP

e

The primary reason for networking standards is to:

a. simplify cost accounting for networks

b. ensure that hardware and software produced by different vendors can work together

c. make it more difficult to develop hardware and software that link different networks

d. ensure that all network components of a particular network can be provided by only one

vendor

e. lock customers into buying network components from one vendor

b

Which of the following is not true about de jure standards?

a. They are always developed before de facto standards.

b. One example exists for network layer software (IP).

c. They can be developed by an official industry body.

d. They can take several years to develop.

e. They can be developed by a government bod

a

Which of the following is not true about de facto standards?

a. They never evolve into de jure standards.

b. They are those standards that emerge in the marketplace.

c. They tend not to be developed by an official industry or government body.

d. They are generally supported by more than one vendor but de facto standards have no

official standing.

e. They tend to emerge based upon the needs/response of the marketplace

a

The three stages of the de jure standardization process are ______________________.

a. specification, identification of choices and acceptance.

b. planning, implementing and acceptance.

c. brainstorming, identification and implementing.

d. specification, formalization, and acceptance.

e. none of the above.

a

Which of the following is true about ISO:

a. It makes technical recommendations about data communications interfaces

b. Its name stands for International Organization for Standardization

c. It is based in Geneva, Switzerland

d. It is one of the most important standards-making bodies

e. All of the above

e

Which of the following is not true about ITU-T:

a. It is the technical standards-setting organization of the United Nations International

Telecommunications Union

b. It is the International Telecommunications Union – Telecommunications Group

c. Its membership is limited to U.S. telephone companies

d. It is based in Geneva, Switzerland

e. Its membership is comprised of representatives from over 200 member countries

e

The American National Standards Institute:

a. is the coordinating organization for the United States’ national system of standards

b. is a professional society in the U.S. whose standards committees focus on local area

network standards

c. sets the standards that govern how much of the Internet will operate

d. is an agency that develops federal information processing standards for the federal

government

e. makes technical recommendations about global telephone rates

a

The Internet standards organization that will allow anyone to join is __________________.

a. ANSI

b. ISO

c. IETF

d. IEEE

e. ITU-T

c

Which standards body is responsible for the development of local area network (LAN)

standards?

a. ANSI

b. ISO

c. IETF

d. IEEE

e. ITU-T

d

Which of the following is not an application layer standard?

a. HTTP

b. POP

c. T1

d. IMAP

e. HTML

c

Which of the following is not a data link layer standard?

a. HTTP

b. Ethernet

c. T1

d. PPP

e. Frame Relay

a

Which of the following is not an important future trend in communication and networking?

a. development of online batch systems

b. massively online systems

c. the Internet of Things

d. Wireless LAN

e. BYOD

a

__________ ensure that hardware and software produced by different vendors work together.

a. Delimiters

b. Standards

c. ASPs

d. RBOCs

e. Intranets

b

A _____________ is the input-output hardware device at the end user’s end of a

communication circuit in a client-server network.

a. server

b. circuit

c. client

d. host

e. mouse

c

A(n) ___________ is similar to an intranet in that it uses Internet technologies, but is

developed for users outside the organization.

a. intranet

b. Usenet

c. Wide Area Network

d. extranet

e. sneaker net

d

Taken together, the physical and data link layers are called the ____________________.

a. Internet layer

b. Hardware layer

c. Internetwork layer

d. Application layer

b

BYOD stands for

a. Bring Your Own Device

b. Bring Your Own Database

c. Build Your Own Device

d. Build Your Own Database

a

When a user accesses an application via a web browser on their mobile device, this is referred to

as

a. a browser-based approach

b. a native app

c. Internet Explorer

d. BYOD

a

A MOOC is an example of a(n)

a. BYOD

b. massively online technology

c. native app

d. browser-based technology

b

A network administrator has received several reports from users of the network that the intranet

website on one of company servers is not accessible, but the same users are still able to retrieve

their email being stored on the same server. What layer of the Internet model does this problem

appear to reside at?

a. physical

b. transport

c. network

d. application

e. data link

d

A junior network administrator has used the wrong cable type to connect his/her computer to the

administrative port on a router and cannot establish a terminal session with the device. What

layer of the Internet model does this problem appear to reside at?

a. physical

b. transport

c. network

d. application

e. data link

a

Which of the following correctly represents order of the seven layers of the OSI model from

layer 1 to layer 7?

a. physical, network, data link, session, transport, application, presentation

b. physical, data link, network, transport, session, application, presentation

c. physical, data link, network, transport, session, presentation, application

d. data link, physical, network, session, transport, application, presentation

e. data link, physical, network, transport, session, presentation, application

c

When a developer creates an application for each type of device that might be used, this is

referred to as

a. a browser-based approach

b. a native app

c. Internet Explorer

d. BYOD

b

The _______ is a connection of computers and networks built into common, everyday

devices.

a. BYOD

b. Internet of Things

c. Web of lies

d. Wide Area Network

b