Pre Test Modulation System and Multiplexing

What is the most suitable definition of modulation?

• The process of laying an information signal on a carrier signal

• The process of laying a carrier signal on an information signal

• The process of separating an information signal from a carrier signal

• The process of separating a carrier signal from an information signal

Which of the following is the example of wireless media communication?

• Bluetooth

• Optical fiber

• Copper wire

• Unshielded twisted pair (UTP)

Which of the following is the example of wireline media transmission?

• Visible Light Communication

• Microwave

• Satellite

• Optical Fiber

Generally, what is the unit of Gain?

• V

• dB

• Watt

• Joule

1 bit equals to 8 byte

• True

• False

Which of the following is not the example of analog modulation?

• Amplitude Modulation

• Frequency Modulation

• Phase Modulation

• Pulse Code Modulation

Which of the following is not the example of Digital Modulation?

• Amplitude Shift Keying

• Frequency Shift Keying

• Phase Shift Keying

• Line Coding

What type of signal shows in the figure?

• Analog Signal

• Digital Signal

What type of signal shows in the figure?

• Analog Signal

• Digital Signal

What is the period of this signal?

• 2 ms

• 12 ms

• 8 ms

• 4 ms