Question 1

The ________ of a signal is the distance occupied by a single cycle.

Accepted Answer

The wavelength of a signal is the distance occupied by a single cycle. Bandwidth refers to the range of frequencies contained in a signal, frequency is the number of cycles per second, and amplitude is the height of the signal's waveform.

Question 2

In a ________ guided configuration more than two devices share the same medium.

Accepted Answer

The answer of In a ________ guided configuration more than...

Question 3

The ________ bandwidth is the band where most of the signal energy is concentrated.

Accepted Answer

The answer of The ________ bandwidth is the band where...

Question 4

A technique known as ________ is used to provide a flicker free image without increasing the bandwidth requirement.

Accepted Answer

The answer of A technique known as ________ is used...

Question 5

________ is generated by terminals.computers,and other data processing equipment and then converted into digital voltage pulses for transmissions.

Accepted Answer

Binary data is generated by computers and data processing equipment in the form of 0s and 1s, which are then converted into digital voltage pulses for transmissions. Voice and audio are analog signals, and text is a form of binary data but is not the only type of data that can be transmitted digitally.

Question 6

An example of digital data is ________ or character strings.

Accepted Answer

Text or character strings are a common example of digital data that can be stored and manipulated using computers. Interlaced, audio, and video are also types of digital data, but they are not as general or commonly encountered as text.

Question 7

Thermal noise is also referred to as ________ noise.

Accepted Answer

The answer of Thermal noise is also referred to as...

Question 8

The designer of a communications facility must deal with four factors: the data rate that is used for digital information,the amount of noise and other impairments,the level of error rate that is acceptable and the ________ of the signal.

Accepted Answer

The answer of The designer of a communications facility must...

Question 9

When signals at different frequencies share the same transmission medium the result may be ________ noise.

Accepted Answer

When signals at different frequencies share the same transmission medium, they can create intermodulation noise, also known as intermodulation distortion. This occurs when the signals mix and create new frequencies, which can cause interference and distortion in the original signals. Crosstalk is interference caused by signals leaking into adjacent cables or circuit paths, white noise is a random signal with a flat power spectral density, and impulse noise is a non-continuous signal caused by sudden, brief bursts of energy.

Question 10

The communication of data by the propagation and processing of signals is ________.

Accepted Answer

The term "transmission" specifically refers to the communication of data through signal propagation and processing. Interlacing refers to a specific method of displaying images, signaling generally refers to the use of signals for communication (but not necessarily in the context of data transmission), and effective bandwidth is a measure of the amount of data that can be transmitted over a given period of time.

Question 11

A means of transmitting analog signals without regard to their content is ________ transmission.

Accepted Answer

The answer of A means of transmitting analog signals without...

Question 12

The rate in bits per second at which data can be communicated is the ________.

Accepted Answer

The rate in bits per second at which data can be communicated is known as the data rate. This is the maximum amount of bits that can be transmitted over a given channel in one second. Therefore, option B is the correct answer. Analog and digital transmission refer to the methods used for transmitting data, and channel capacity refers to the maximum capacity of a communication channel to carry data, but none of them represent the data rate itself.

Question 13

The ________ is the maximum value or strength of the signal over time; typically this value is measured in volts.

Accepted Answer

Peak amplitude refers to the maximum value or strength of the signal over time, typically measured in units of volts.

Question 14

A(n)________ signal is a sequence of voltage pulses that may be transmitted over a wire medium.

Accepted Answer

A digital signal is a sequence of discrete voltage pulses that represent digital data. It can be transmitted over a wire medium and is less prone to interference and distortion compared to analog signals. Audio and text signals are examples of digital data that can be transmitted using digital signals; however, they are not signals themselves. Analog signals, on the other hand, are continuous waveforms that can be affected by noise and distortion during transmission over a wire medium.

Question 15

To achieve greater distances in digital transmissions ________ are used.

Accepted Answer

The answer of To achieve greater distances in digital transmissions...

Question 16

Twisted pair,coaxial cable and optical fiber are examples of ________ media.

Accepted Answer

The answer of Twisted pair,coaxial cable and optical fiber are...

Question 17

A reduction in strength is ________.

Accepted Answer

Attenuation refers to a reduction in strength or intensity, often used to describe the weakening of a signal over a distance or through a medium. Delay distortion (A) is a phenomenon where different parts of a signal arrive at different times, causing distortion. Pulsing (C) refers to a periodic variation in amplitude or intensity. Interlacing (D) is a technique used in video displays where odd and even lines are displayed alternately to create a full image.

Question 18

The ________ bandwidth of a signal is the width of the spectrum.

Accepted Answer

The answer of The ________ bandwidth of a signal is...

Question 19

The simplest sort of signal is a ________ signal,in which the same signal pattern repeats over time.

Accepted Answer

The answer of The simplest sort of signal is a...

Question 20

The ________ of a signal is the range of frequencies that it contains.

Accepted Answer

The spectrum of a signal refers to the range of frequencies that it contains.

Quiz 3: Data Transmission