BHN2025 Day 3

What is the primary function of a communication system?

• To increase data storage capacity

• To transmit information-bearing waveforms to a receiver

• To amplify weak signals for better reception

• To provide internet access

What is a key advantage of digital communication systems over analog systems?

• They require less bandwidth

• They eliminate the need for synchronization

• They can merge data from multiple sources using multiplexing

• They are not affected by noise

Which of the following is a disadvantage of digital communication systems?

• They require more bandwidth than analog systems

• They are highly susceptible to noise

• They cannot transmit video signals

• They are more expensive to implement

What does Pulse Amplitude Modulation (PAM) do?

• Converts an analog signal into a digital bit stream

• Converts an analog signal into a pulse-type signal

• Reduces noise in a digital communication system

• Increases the transmission speed of wireless signals

What does Time-Division Multiplexing (TDM) do?

• Allows multiple signals to share the same transmission channel by interleaving samples in time

• Reduces the amount of data required for digital transmission

• Enhances signal quality by removing distortion

• Converts analog signals into digital signals