Bandwidth Utilization Quiz

What is the main purpose of bandwidth utilization?

• Signal amplification

• Cost reduction

• Efficient bandwidth use

• Reducing transmission time

What technique is used to increase bandwidth for privacy or anti-jamming?

• Filtering

• Multiplexing

• Spreading

• Compression

Which device combines multiple input signals into one?

• Switch

• Multiplexer

• Demultiplexer

• Amplifier

Which device separates a combined signal into original streams?

• Filter

• Multiplexer

• Demultiplexer

• Encoder

What is the term for the physical transmission path in a network?

• Channel

• Band

• Link

• Node

In a multiplexed system, what does “channel” refer to?

• A physical wire

• A virtual frequency

• A data stream

• A portion of a link

What does FDM stand for?

• Frequency-Domain Multiplexing

• Frequency-Division Multiplexing

• Frequency-Driven Method

• Frequency-Delay Multiplexing

FDM is used primarily with:

• Optical signals

• Analog signals

• Digital signals

• Wireless modems

What is used to prevent signal overlap in FDM?

• Time slots

• Carriers

• Guard bands

• Channel codes

If 5 channels of 100 kHz each are used with 10 kHz guard bands between them, what is the minimum bandwidth needed?

• 500 kHz

• 540 kHz

• 520 kHz

• 600 kHz