Data Error Detection and Correction Networks

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What is the name for the noncontinuous noise that is one of the most difficult errors to detect?

Gaussian noise

White noise

Crosstalk

Impulse noise (correct)

Which type of noise is always present to some degree in transmission media and electronic devices?

Gaussian noise

Crosstalk

Impulse noise

White noise (correct)

What is the cause of increased level of white noise (Gaussian noise)?

Decreased data transmission

Decreased temperature of the medium

Reduced activity of the electrons in the electronic device

Increased activity of the electrons in the electronic device (correct)

Which type of noise can be electrical or electromagnetic and is an unwanted coupling between two different signal paths?

Crosstalk Signup and view all the answers

What kind of noise is dependent on the temperature of the medium?

White noise Signup and view all the answers

Which type of noise interferes with an analog signal and can be difficult to remove without affecting the original signal?

Impulse noise Signup and view all the answers

What is the result of small timing irregularities that become magnified during the transmission of digital signals?

Jitter Signup and view all the answers

What is the continuous loss of a signal's strength as it travels through a medium?

Attenuation Signup and view all the answers

What is a burst error in data transmission?

Two or more bits in the data unit have changed Signup and view all the answers

What is the central concept in detecting or correcting errors in data transmission?

Redundancy Signup and view all the answers

In which layer can error detection be performed in data transmission?

Data link layer Signup and view all the answers

What method of error detection involves adding redundant bits called parity bits to each character?

Parity check Signup and view all the answers

What does a parity check involve for ASCII characters encoding?

Using 7 bits for character encoding Signup and view all the answers

Which type of noise interferes with an analog signal and can be difficult to remove without affecting the original signal?

Crosstalk noise Signup and view all the answers

Data Error Detection and Correction Networks

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Questions and Answers

What is the name for the noncontinuous noise that is one of the most difficult errors to detect?

Which type of noise is always present to some degree in transmission media and electronic devices?

What is the cause of increased level of white noise (Gaussian noise)?

Which type of noise can be electrical or electromagnetic and is an unwanted coupling between two different signal paths?

What kind of noise is dependent on the temperature of the medium?

Which type of noise interferes with an analog signal and can be difficult to remove without affecting the original signal?

What is the result of small timing irregularities that become magnified during the transmission of digital signals?

What is the continuous loss of a signal's strength as it travels through a medium?

What is a burst error in data transmission?

What is the central concept in detecting or correcting errors in data transmission?

In which layer can error detection be performed in data transmission?

What method of error detection involves adding redundant bits called parity bits to each character?

What does a parity check involve for ASCII characters encoding?

Which type of noise interferes with an analog signal and can be difficult to remove without affecting the original signal?

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