DATACOMM-Q2

It is the electric or electromagnetic impulses used to encode and transmit data.

• Data

• Signal

• Communication

• Noise

It is best described as the unwanted electrical or electromagnetic energy degrading signal quality and data.

• Data

• Signal

• Communication

• Noise

What are the characteristics that data and signals have in common?

• They are represented as continuous waveforms only

• They are represented in the form of binary 1s and 0s only

• They can exist in either analog or digital form

• Not in the choices

The range of frequencies that a signal spans from minimum to maximum is called the __________________?

• Spectrum

• Bandwidth

• Period

• Phase

It is a relative measure of signal loss or gain and it is used to measure the logarithmic loss or gain of a signal.

• Data Rate

• Decibel

• Data Rate

• Baud Rate

It is the weakening of a signal's strength due to noise, distance or other external factors.

• Amplification

• Attenuation

• Decibel

• Modulation

It is the number of times a signal makes a complete cycle within a given time frame.

• Amplitude

• Phase

• Frequency

• Period

It is the absolute value of the difference between the lowest and highest frequencies.

• Frequency

• Bandwidth

• Period

• Phase

It is a digital encoding scheme that transmits 1s as zero voltages and 0s as positive voltages.

• Manchester Digital Encoding Schemes

• NonReturn to Zero Inverted (NRZI)

• 4B/5B Digital Encoding Scheme

• NonReturn to Zero-Level (NRZ-L)

This signal is a continuous signal

• Analog

• Digital