Analog vs Digital Signals and Sockets Programming Quiz

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What is a key advantage of digital signals over analog signals?

Digital signals have a higher bandwidth

Digital signals are more susceptible to noise

Digital signals incur less attenuation (correct)

Digital signals are more expensive

How does the bandwidth of a signal relate to its data rate?

Bandwidth increases as data rate increases (correct)

Bandwidth and data rate are not related

Bandwidth remains constant regardless of data rate

Bandwidth decreases as data rate increases

Why are digital signals the preferred choice despite greater attenuation?

Digital signals are less susceptible to noise

Digital signals are easier to process

Digital signals provide higher bandwidth

Digital signals are more cost-effective (correct)

What characteristic of digital signals makes them less prone to distortion from external interference?

Use of dc components Signup and view all the answers

In the context of signals, what role does data rate play in determining the effectiveness of digital communication?

Data rate impacts the speed and efficiency of digital communication Signup and view all the answers

Which characteristic of digital signals contributes to their reduced vulnerability to external disturbances?

Less susceptibility to noise Signup and view all the answers

What is the term for a direct link between two devices without any intermediate devices?

Point-to-point Signup and view all the answers

Which type of signal maintains a constant level and then changes to another constant level?

Digital signal Signup and view all the answers

What is the term for a transmission system with a limited band of frequencies that restricts the data rate?

Absolute bandwidth Signup and view all the answers

Which term refers to entities that convey meaning in a data transmission system?

Data Signup and view all the answers

What is the advantage of digital signals over analog signals in terms of noise resilience?

Digital signals are more resilient to noise Signup and view all the answers

In multi-point transmission, how many devices share the link?

More than two devices Signup and view all the answers

What is the main advantage of a digital signal being less susceptible to errors compared to an analog signal?

Presence or absence of transitions in the signal Signup and view all the answers

Which modulation method is known for changing the height of the wave to encode data?

Amplitude Modulation (AM) Signup and view all the answers

What happens when a carrier wave's phase remains unchanged in Phase Modulation (PM)?

Corresponds to a bit value of 0 Signup and view all the answers

What does a modem do in digital communication?

Encodes and decodes data by manipulating the carrier wave Signup and view all the answers

Which multiplexing technique breaks up a high-speed circuit into several slower logical circuits?

Time Division Multiplexing (TDM) Signup and view all the answers

What is the function of a Codec in digital communication?

Translates analog voice signals into digital form Signup and view all the answers

In Analog Transmission of Digital Data, what device is used to translate digital data into analog signals?

Modem Signup and view all the answers