CENG210 Comm-Net-Fund_3

............................. signal represents an infinite range of continuous dataز

• ِAnalog

• Digital

• Simple

• Composite

The ........................ refers to the time amount of one repeated complete cycle of a signal.

• frequency

• period

• phase

• wavelength

Increasing the frequency of a signal refers to its capability to transfer data quickly.

• False

• True

• True

• False

The .............. signal can be expressed using a set of sine waves with different frequencies.

• digital

• composite

• periodic

• nonperiodic

The frequency of one-second periodic signal equals .............

• 0.5 Hz

• 1 Hz

• 2 Hz

• none of them

Getting a set of spikes at different frequencies in the frequency domain indicates that the signal is ...................... at the time domain.

• simple periodic signal

• simple nonperiodic signal

• composite periodic signal

• composite nonperiodic signal

The .................... of a composite signal is the difference between the highest and lowest frequencies contained in the signal.

• wavelength

• bandwidth

• phase

• cycle

Bit rate is used to describe the rate of data change in .................... signals.

• analog

• digital

• periodic

• composite

The following figure shows a bandwidth of

• simple periodic signal

• simple non-periodic signal

• composite periodic signal

• composite non-periodic signal