Quiz on Data Communication

What is the primary purpose of data transmission?

• To store data

• To transfer data between devices

• To process data

• To delete data

Which term refers to the number of cycles completed in one second?

• Wavelength

• Amplitude

• Frequency

• Period

The range of frequencies contained in a signal is called:

• Bandwidth

• Spectrum

• Amplitude

• Phase

What is bandwidth in the context of data transmission?

• The physical width of the cable

• The difference between highest and lowest frequencies

• The speed of data transfer

• The signal strength

Which type of data consists of continuous values within a given range?

• Digital data

• Binary data

• Analog data

• Discrete data

A digital signal is characterized by:

• Continuous values

• Discrete values

• Infinite values

• Random values

What causes signal strength to decrease with distance?

• Noise

• Attenuation

• Distortion

• Interference

Thermal noise is also known as:

• White noise

• Impulse noise

• Crosstalk

• Echo

Which impairment occurs when different frequencies travel at different speeds?

• Attenuation

• Noise

• Delay distortion

• Echo

What type of transmission uses continuous signals?

• Digital transmission

• Analog transmission

• Binary transmission

• Packet transmission