DIG 6206 Lecture 4

3f represents the ______ of the signal

• 1. 1st harmonic

• 2. 2. 2nd harmonic

• 3. 3rd harmonic

________ is the process of converting digital data to digital signals.

• Modulation

• Line coding

• Multiplexing

The _____ refers to the number of signal changes or symbols transmitted per second in a communication channel

• A. Data rate

• B. Signal Rate

• C. Baud Rate

• D. Both B and C

More changes in the signal mean injecting more ____ into the signal

• Bits

• Frequencies

• Data rate

What are the drawbacks of the Non-Return-to-Zero (NRZ) encoding scheme?

• Synchronization Problenm

• DC Problem

• Requires Greater Bandwidth

• Both A and B

• All three: A, B, and C

Sync problem is more serious in NRZ-I than in

NRZ-L

• True

• False

The main disadvantage of RZ encoding is that

it ______

• Is prone to signal distortion

• Requires higher bandwidth

• Lacks Synchronization

______ can give us this redundancy and improve the performance of NRZ-I scheme.

• Line Coding

• Block coding

• Convolutional coding