Unfortunately, noise itself occurs as a(n) ____ waveform, and this makes it challenging, if not extremely difficult, to separate noise from an analog waveform that represents data.

Unfortunately, noise itself occurs as a(n) ____ waveform, and this makes it challenging, if not extremely difficult, to separate noise from an analog waveform that represents data.

a. analog
b. digital
c. hertz
d. byte

Answer: A

The most common example of ____ data is the human voice.

The most common example of ____ data is the human voice.

a. sampling
b. baud
c. digital
d. analog

Answer: D

____ are represented as continuous waveforms that can be at an infinite number of points between some given minimum and maximum.

____ are represented as continuous waveforms that can be at an infinite number of points between some given minimum and maximum.

a. Analog signals
b. Digital signals
c. Digital data
d. Digital pulses

Answer: A

___ is entities that convey meaning within a computer or computer system.

___ is entities that convey meaning within a computer or computer system.

a. Signals
b. Data
c. Impulse
d. EMI

Answer: B

The addition of control information to a packet as it moves through the layers is called ____.

The addition of control information to a packet as it moves through the layers is called ____.

a. encapsulation
b. overloading
c. payload
d. filtering

Answer: A

A(n) ____ connection is a nonphysical connection between sender and receiver that allows an exchange of commands and responses.

A(n) ____ connection is a nonphysical connection between sender and receiver that allows an exchange of commands and responses.

a. physical
b. encapsulated
c. real
d. logical

Answer: D

The ____ suite was not created by a standards-making organization but by a group of computer scientists.

The ____ suite was not created by a standards-making organization but by a group of computer scientists.

a. OSI model
b. FTP protocol
c. OSI model
d. TCP/IP protocol

Answer: D

___ ensures that the network does not become saturated at any one point.

___ ensures that the network does not become saturated at any one point.

a. End-to-end error control
b. Congestion control
c. End-to-end flow control
d. Synchronization points control

Answer: B

The ____ layer of the OSI model performs congestion control.

The ____ layer of the OSI model performs congestion control.

a. network
b. data link
c. physical
d. session

Answer: A

____ is a service that controls which user's computer talks when during the current session by passing a software token back and forth.

____ is a service that controls which user's computer talks when during the current session by passing a software token back and forth.

a. Token management
b. Synchronization point
c. Character conversion
d. Encryption/decryption

Answer: A

The ____ layer is responsible for establishing sessions between users for token management.

The ____ layer is responsible for establishing sessions between users for token management.

a. network
b. application
c. transport
d. session

Answer: D

The ____ layer of the OSI model makes sure the data received at the very end of a transmission is exactly the same as the data originally transmitted.

The ____ layer of the OSI model makes sure the data received at the very end of a transmission is exactly the same as the data originally transmitted.

a. application
b. session
c. transport
d. network access

Answer: C

The ____ in a network architecture define a model for the functions or services that need to be performed.

The ____ in a network architecture define a model for the functions or services that need to be performed.

a. servers
b. workstations
c. routers
d. layers

Answer: D

A ____ is a high-speed network that interconnects multiple sites within a close geographic region, such as a large urban area.

A ____ is a high-speed network that interconnects multiple sites within a close geographic region, such as a large urban area.

a. metropolitan area network (MAN)
b. wide area network (WAN)
c. local area network (LAN)
d. personal area network (PAN)

Answer: A

The personal area network was created in the late ____.

The personal area network was created in the late ____.

a. 1970s
b. 1980s
c. 1990s
d. 2000s

Answer: C

The devices that usually connect two or more LANs are the switch, hub, and ____.

The devices that usually connect two or more LANs are the switch, hub, and ____.

a. workstation
b. access point
c. server
d. router

Answer: D

The Internet "talks" only ____, so users must use software that supports this protocol.

The Internet "talks" only ____, so users must use software that supports this protocol.

a. IPX/SPX
b. DSL
c. TCP/IP
d. FTP

Answer: C

A modem and a dial-up telephone service provides data transfer rates of approximately ____.

A modem and a dial-up telephone service provides data transfer rates of approximately ____.

a. 56,000 bits per second (56 kbps)
b. 112,000 bits per second (112 kbps)
c. 128,000 bits per second (128 kbps)
d. 256,000 bits per second (256 kbps)

Answer: A

In a(n) ____ system, a user at a microcomputer, or client machine, issues a request for some form of data or service.

In a(n) ____ system, a user at a microcomputer, or client machine, issues a request for some form of data or service.

a. wireless
b. client/server
c. bridge
d. Internet

Answer: B

A ____ is a device that is essentially a keyboard and screen with no long-term storage capabilities and little, if any, processing power.

A ____ is a device that is essentially a keyboard and screen with no long-term storage capabilities and little, if any, processing power.

a. protocol
b. mainframe
c. thick-client
d. computer terminal

Answer: D

___ are capable of filtering out unnecessary traffic.

___ are capable of filtering out unnecessary traffic.

a. Switches
b. Routers
c. Servers
d. Workstations

Answer: A

___ are the computers that store network software and shared or private user files.

___ are the computers that store network software and shared or private user files.

a. Switches
b. Routers
c. Servers
d. Hubs

Answer: C

____ is the design, installation, and support of a network and its hardware and software.

____ is the design, installation, and support of a network and its hardware and software.

a. Convergence
b. Voice network
c. Data network
d. Network management

Answer: D

____ is the transmission of multiple signals on one medium.

____ is the transmission of multiple signals on one medium.

a. Multiplexing
b. Codec
c. Modem
d. Package




Answer: A

A ____ is an interconnection of computers and computing equipment using either wires or radio waves over small or large geographic areas.

A ____ is an interconnection of computers and computing equipment using either wires or radio waves over small or large geographic areas.

a. personal area network (PAN)
b. computer network
c. wireless network
d. local area network (LAN)

Answer: B