Multiplexing Quiz

What is the primary purpose of multiplexing?

• To reduce the cost of transmission media

• To enhance the security of data transmission

• To increase the number of devices connected to a network

• To allow several transmission sources to share a larger transmission bandwidth

Which of the following is NOT a basic multiplexing technique?

• Time Division Multiplexing

• Frequency Division Multiplexing

• Wavelength Division Multiplexing

• Signal Division Multiplexing

What does FDM stand for?

• Frequency Digital Modulation

• Frequency Data Management

• Frequency Division Multiplexing

• Frequency Division Modulation

In Frequency Division Multiplexing, how are signals separated?

• By using different cables

• By using digital signals

• By using guard bands

• By using time slots

What is the main advantage of Wavelength Division Multiplexing (WDM)?

• It requires less bandwidth

• It uses the high-data-rate capability of fiber-optic cable

• It is easier to implement than TDM

• It is cheaper than FDM

What is a main property of Synchronous TDM?

• It is used only for analog signals

• It allows for maximum utilization of the link

• Each device is assigned a fixed time slot

• Time slots are allocated based on demand

What is the role of a demultiplexer (DEMUX) in a multiplexed system?

• To combine multiple signals into one

• To separate a composite signal back into its original components

• To modulate signals onto different carriers

• To allocate bandwidth to different channels

In Asynchronous TDM, how are time slots allocated?

• They are fixed for all devices

• They are preassigned to each device

• They are allocated dynamically based on demand

• They are based on the frequency of signals

What is the minimum bandwidth required for four channels of 100 kHz each with a 10 kHz guard band?

• 430 kHz

• 440 kHz

• 400 kHz

• 500 kHz

Which multiplexing technique is used for digital signals?

• Frequency Division Multiplexing

• Wavelength Division Multiplexing

• Time Division Multiplexing

• Analog Division Multiplexing