Reflection Connection Week 33

What is the primary difference between digital and analog signals?

• Digital signals are continuous, while analog signals are discrete.

• Digital signals are discrete, while analog signals are continuous.

• Both digital and analog signals are continuous.

• Both digital and analog signals are discrete.

Which of the following is an advantage of digital signals over analog signals?

• Digital signals are more susceptible to noise.

• Digital signals can be easily compressed and encrypted.

• Digital signals require more bandwidth.

• Digital signals have a lower quality than analog signals.

What is a common disadvantage of analog signals?

• They are less affected by noise.

• They require complex processing techniques.

• They degrade over long distances.

• They are easier to store and transmit.

In which of the following applications is digital communication commonly used?

• AM radio broadcasting

• Vinyl record players

• Internet data transmission

• Analog television

How does noise impact analog signals compared to digital signals?

• Noise has no impact on analog signals.

• Noise affects digital signals more than analog signals.

• Noise can cause significant distortion in analog signals.

• Noise is easily removed from analog signals.

Which signal processing technique is commonly used to improve the quality of digital signals?

• Amplitude modulation

• Frequency modulation

• Error detection and correction

• Phase modulation

Why are digital signals preferred for long-distance communication?

• They are less expensive to transmit.

• They maintain quality over long distances.

• They require less power.

• They are more compatible with analog systems.

What is a key characteristic of digital signals that makes them less susceptible to noise?

• Their continuous nature

• Their discrete levels

• Their high frequency

• Their low amplitude

Which of the following is a strategic advantage of using digital communication in modern technology?

• It allows for the integration of multiple types of data (audio, video, text).

• It is more expensive to implement.

• It requires more complex hardware.

• It is less secure than analog communication.

How does the use of digital signals enhance data security?

• By making data transmission slower

• By allowing for encryption techniques

• By increasing the noise in the signal

• By reducing the data size