Podcast
Questions and Answers
What is a key advantage of digital signals over analog signals?
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?
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?
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?
What characteristic of digital signals makes them less prone to distortion from external interference?
In the context of signals, what role does data rate play in determining the effectiveness of digital communication?
In the context of signals, what role does data rate play in determining the effectiveness of digital communication?
Which characteristic of digital signals contributes to their reduced vulnerability to external disturbances?
Which characteristic of digital signals contributes to their reduced vulnerability to external disturbances?
What is the term for a direct link between two devices without any intermediate devices?
What is the term for a direct link between two devices without any intermediate devices?
Which type of signal maintains a constant level and then changes to another constant level?
Which type of signal maintains a constant level and then changes to another constant level?
What is the term for a transmission system with a limited band of frequencies that restricts the data rate?
What is the term for a transmission system with a limited band of frequencies that restricts the data rate?
Which term refers to entities that convey meaning in a data transmission system?
Which term refers to entities that convey meaning in a data transmission system?
What is the advantage of digital signals over analog signals in terms of noise resilience?
What is the advantage of digital signals over analog signals in terms of noise resilience?
In multi-point transmission, how many devices share the link?
In multi-point transmission, how many devices share the link?
What is the main advantage of a digital signal being less susceptible to errors compared to an analog signal?
What is the main advantage of a digital signal being less susceptible to errors compared to an analog signal?
Which modulation method is known for changing the height of the wave to encode data?
Which modulation method is known for changing the height of the wave to encode data?
What happens when a carrier wave's phase remains unchanged in Phase Modulation (PM)?
What happens when a carrier wave's phase remains unchanged in Phase Modulation (PM)?
What does a modem do in digital communication?
What does a modem do in digital communication?
Which multiplexing technique breaks up a high-speed circuit into several slower logical circuits?
Which multiplexing technique breaks up a high-speed circuit into several slower logical circuits?
What is the function of a Codec in digital communication?
What is the function of a Codec in digital communication?
In Analog Transmission of Digital Data, what device is used to translate digital data into analog signals?
In Analog Transmission of Digital Data, what device is used to translate digital data into analog signals?
