Question 1

____________________ are the electric or electromagnetic impulses used to encode and transmit data.

Accepted Answer

The answer of ____________________ are the electric or electromagnetic impulses...

Question 2

With the ____________________ encoding scheme,to transmit a 1,the signal changes from low to high in the middle of the interval; to transmit a 0,the signal changes from high to low in the middle of the interval.

Accepted Answer

The answer of With the ____________________ encoding scheme,to transmit a...

Question 3

The ____________________ digital encoding scheme transmits 1s as zero voltages and 0s as positive voltages.

Accepted Answer

nonreturn to zero-le...

Question 4

The Manchester encoding schemes solve the synchronization problem but are relatively inefficient because they have a baud rate that is ____ the bps.

Accepted Answer

A)   equal to
B)   twice
C)   three times
D)   four times

Question 5

The amplitude of a signal can be expressed as volts,____,or watts.

Accepted Answer

A)   hertz
B)   amps
C)   bits
D)   bytes

Question 6

IBM mainframe computers are major users of the EBCDIC character set.

Accepted Answer

A) True 
 B)False

Question 7

One of the major problems with Unicode is that it cannot represent symbols other than those found in the English language.

Accepted Answer

A) True 
 B)False  False

Question 8

What is the purpose of using digital encoding schemes?

Accepted Answer

To transmit digital data using digital s...

Question 9

Amplitude shift keying is restricted to only two possible amplitude levels: low and high.

Accepted Answer

A) True 
 B)False

Question 10

By convention,the minimum and maximum values of analog data and signals are presented as voltages.

Accepted Answer

A) True 
 B)False  True

Question 11

The terms "data" and "signal" mean the same thing.

Accepted Answer

A) True 
 B)False

Question 12

Using ____,when a device transmits a binary 0,a zero voltage is transmitted.When the device transmits a binary 1,either a positive voltage or a negative voltage is transmitted.

Accepted Answer

A)   Manchester
B)   bipolar-AMI
C)   differential Manchester
D)   NRZ-L

Question 13

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

Accepted Answer

A)   sampling
B)   baud
C)   digital
D)   analog

Question 14

A problem inherent with delta modulation is that if the analog waveform rises or drops too quickly,the codec may not be able to keep up with the change,and ____________________ results.

Accepted Answer

slope over...

Question 15

What are common examples of data?

Accepted Answer

Common examples of data include:
* A co...

Question 16

Certain control characters provide data transfer control between a computer source and computer destination.

Accepted Answer

A) True 
 B)False

Question 17

What happens when you introduce noise into digital data and digital signals?

Accepted Answer

Noise has the properties of an analog wa...

Question 18

The three basic components of analog and digital signals are: amplitude,frequency,and ____.

Accepted Answer

A)   cycles
B)   baud
C)   hertz
D)   phase

Question 19

What are the four possible data-to-signal conversion combinations?

Accepted Answer

Data and signals are two of the basic building blocks of any computer network.It is important to understand that the terms "data" and "signal" do not mean the same thing,and that in order for a computer network to transmit data,the data must first be converted into the appropriate signals.The one thing data and signals have in common is that both can be in either analog or digital form,which gives us four possible data-to-signal conversion combinations:
 * Analog data-to-analog signal,which involves amplitude and frequency modulation techniques
 * Digital data-to-digital signal,which involves encoding techniques
 * Digital data-to-discrete analog signal,which involves modulation techniques
 * Analog data-to-digital signal,which involves digitization techniques

Question 20

The big disadvantage of the Manchester schemes is that roughly half the time there will be two transitions during each bit.

Accepted Answer

A) True 
 B)False

Exam 2: Fundamentals of Data and Signals

____________________ are the electric or electromagnetic impulses used to encode and transmit data.

Correct Answer
verified

With the ____________________ encoding scheme,to transmit a 1,the signal changes from low to high in the middle of the interval; to transmit a 0,the signal changes from high to low in the middle of the interval.

Correct Answer
verified

The ____________________ digital encoding scheme transmits 1s as zero voltages and 0s as positive voltages.

Correct Answer
verified
nonreturn to zero-le...
View Answer

The Manchester encoding schemes solve the synchronization problem but are relatively inefficient because they have a baud rate that is ____ the bps.

Correct Answer
verified

The amplitude of a signal can be expressed as volts,____,or watts.

Correct Answer
verified

IBM mainframe computers are major users of the EBCDIC character set.

Correct Answer
verified

One of the major problems with Unicode is that it cannot represent symbols other than those found in the English language.

Correct Answer
verified
False

What is the purpose of using digital encoding schemes?

Correct Answer
verified
To transmit digital data using digital s...
View Answer

Amplitude shift keying is restricted to only two possible amplitude levels: low and high.

Correct Answer
verified

By convention,the minimum and maximum values of analog data and signals are presented as voltages.

Correct Answer
verified
True

The terms "data" and "signal" mean the same thing.

Correct Answer
verified

Using ____,when a device transmits a binary 0,a zero voltage is transmitted.When the device transmits a binary 1,either a positive voltage or a negative voltage is transmitted.

Correct Answer
verified

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

Correct Answer
verified

A problem inherent with delta modulation is that if the analog waveform rises or drops too quickly,the codec may not be able to keep up with the change,and ____________________ results.

Correct Answer
verified
slope over...
View Answer

What are common examples of data?

Correct Answer
verified
Common examples of data include:
* A co...
View Answer

Certain control characters provide data transfer control between a computer source and computer destination.

Correct Answer
verified

What happens when you introduce noise into digital data and digital signals?

Correct Answer
verified
Noise has the properties of an analog wa...
View Answer

The three basic components of analog and digital signals are: amplitude,frequency,and ____.

Correct Answer
verified

What are the four possible data-to-signal conversion combinations?

The big disadvantage of the Manchester schemes is that roughly half the time there will be two transitions during each bit.

Correct Answer
verified

Exam 2: Fundamentals of Data and Signals

____________________ are the electric or electromagnetic impulses used to encode and transmit data.

Correct AnswerverifiedShow Answer

With the ____________________ encoding scheme,to transmit a 1,the signal changes from low to high in the middle of the interval; to transmit a 0,the signal changes from high to low in the middle of the interval.

Correct AnswerverifiedShow Answer

The ____________________ digital encoding scheme transmits 1s as zero voltages and 0s as positive voltages.

Correct Answerverifiednonreturn to zero-le...View AnswerShow Answer

The Manchester encoding schemes solve the synchronization problem but are relatively inefficient because they have a baud rate that is ____ the bps.

Correct AnswerverifiedShow Answer

The amplitude of a signal can be expressed as volts,____,or watts.

Correct AnswerverifiedShow Answer

IBM mainframe computers are major users of the EBCDIC character set.

Correct AnswerverifiedShow Answer

One of the major problems with Unicode is that it cannot represent symbols other than those found in the English language.

Correct AnswerverifiedFalse

What is the purpose of using digital encoding schemes?

Correct AnswerverifiedTo transmit digital data using digital s...View AnswerShow Answer

Amplitude shift keying is restricted to only two possible amplitude levels: low and high.

Correct AnswerverifiedShow Answer

By convention,the minimum and maximum values of analog data and signals are presented as voltages.

Correct AnswerverifiedTrue

The terms "data" and "signal" mean the same thing.

Correct AnswerverifiedShow Answer

Using ____,when a device transmits a binary 0,a zero voltage is transmitted.When the device transmits a binary 1,either a positive voltage or a negative voltage is transmitted.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A problem inherent with delta modulation is that if the analog waveform rises or drops too quickly,the codec may not be able to keep up with the change,and ____________________ results.

Correct Answerverifiedslope over...View AnswerShow Answer

What are common examples of data?

Correct AnswerverifiedCommon examples of data include: * A co...View AnswerShow Answer

Certain control characters provide data transfer control between a computer source and computer destination.

Correct AnswerverifiedShow Answer

What happens when you introduce noise into digital data and digital signals?

Correct AnswerverifiedNoise has the properties of an analog wa...View AnswerShow Answer

The three basic components of analog and digital signals are: amplitude,frequency,and ____.

Correct AnswerverifiedShow Answer

What are the four possible data-to-signal conversion combinations?

The big disadvantage of the Manchester schemes is that roughly half the time there will be two transitions during each bit.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
nonreturn to zero-le...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
False

Correct Answer
verified
To transmit digital data using digital s...
View Answer

Correct Answer
verified

Correct Answer
verified
True

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
slope over...
View Answer

Correct Answer
verified
Common examples of data include:
* A co...
View Answer

Correct Answer
verified

Correct Answer
verified
Noise has the properties of an analog wa...
View Answer

Correct Answer
verified

Correct Answer
verified