Digital Modulation Quiz

Which of the following digital modulation techniques uses two different phase shifts to represent binary data?

• Amplitude Shift Keying (ASK)

• Frequency Shift Keying (FSK)

• Phase Shift Keying (PSK)

• Quadrature Amplitude Modulation (QAM)

What is the main function of modulation in digital communication systems?

• To increase the data rate

• To convert analog signals to digital signals

• To reduce the bandwidth requirement

• To adapt the signal to the channel for efficient transmission

In Binary Amplitude Shift Keying (BASK), the carrier signal is:

• Modulated by the frequency of the binary data

• Turned on and off based on binary data

• Modulated by the phase of the binary data

• Modulated by both amplitude and phase

What is the purpose of error detection and correction in digital communication?

• To increase data transmission speed

• To reduce the required bandwidth

• To ensure data integrity and reliability

• To compress the data being transmitted

Which of the following is NOT a typical application of Digital Modulation?

• Satellite communication

• Wireless LANs (Wi-Fi)

• Analog television transmission

• Cellular networks