1. Select the term from the list below that best completes the following sentence.

One problem with transmitting digital data encoded in ____________ over long distances is that the wave pulses tend to spread out and distort, making accurate decoding difficult or impossible beyond a certain distance.

A. sine waves

B. half-duplex wave

C. simplex waves

D. square waves

2. Select one or more of the following statements that are true about analog and digital signalling.

A. With a binary signal encoded in a wave's amplitude, attentuation, noise, or distortion will only cause a decoding error if they result in amplitude falling or rising above or below the threshhold that distinguishes one bit values from zero bit values.

B. An analog signal is more likely than a digital signal to be accurately decoded when attenuation, noise, or distortion affect the signal during transmission.

C. A digital signal is more likley than an analog signal to be accurately decoded when attenuation, noise, or distortion affect the signal during transmission.

D. With an analog signal encoded in a wave's amplitude, attentuation, noise, or distortion will only cause a decoding error if they result in amplitude falling or rising above or below the threshhold that distinguishes one bit values from zero bit values.

3. The _____________ of a wave is a specific time point in its cycle expressed as a number between zero and 360 degrees.

4. When using transmission methods such as AM/ASK or FM/FSK, bit values are encoded within a ___________ for transport from sender to receiver

5. Select one or more of the following statements that are true about analog and digital signalling.

A. With a binary signal encoded in a wave's amplitude, attentuation, noise, or distortion will only cause a decoding error if they result in amplitude falling or rising above or below the threshhold that distinguishes one bit values from zero bit values.

B. An analog signal is more likely than a digital signal to be accurately decoded when attenuation, noise, or distortion affect the signal during transmission.

C. With an analog signal encoded in a wave's amplitude, attentuation, noise, or distortion will only cause a decoding error if they result in amplitude falling or rising above or below the threshhold that distinguishes one bit values from zero bit values.

D. A digital signal is more likley than an analog signal to be accurately decoded when attenuation, noise, or distortion affect the signal during transmission.

6. Complete the following sentence with the most appropriate selection from the list below.

A(n) _____________________ uses the full range of values of a sine wave's amplitude or frequency to represent an infinite number of possible data values.

A. digital signal

B. discrete signal

C. Type II signal

D. analog signal

E. Type I signal