Practice Quiz in Digital Transmission Part 1

This is the Online Practice Quiz in Digital Transmission part 1 from the book, Data Communications and Networking 4th Edition by Behrouz A. Forouzan. If you are looking for a reviewer in Electronics Systems and Technologies (Communications Engineering) this will definitely help you test your knowledge and skill before taking the Board Exam.

Start Part I of the Online Practice Quiz

Quiz in Digital Transmission Question 1. Which encoding method uses alternating positive and negative values for 1s? A. AMI B. RZ C. NRZ-I D. Manchester Question 2. The first step in PCM is ________. A. quantization B. sampling C. modulation D. none of these Question 3. In _______ transmission, bits are transmitted simultaneously, each across its own wire. A. Asynchronous serial B. Synchronous serial C. Parallel D. (a) and (b) Question 4. Two common scrambling techniques are ________. A. B8ZS and HDB3 B. AMI and NRZ C. NRZ and RZ D. Manchester and differential Manchester Question 5. The minimum bandwidth of Manchester and differential Manchester is ____ that of NRZ. A. the same as B. twice C. thrice D. none of these Question 6. PCM is an example of _______ conversion. A. analog-to-analog B. analog-to-digital C. digital-to-digital D. digital-to-analog Question 7. In a _____ scheme, all the signal levels are on one side of the time axis, either above or below. A. unipolar B. polar C. bipolar D. all of these Question 8. ________ is normally referred to as mB/nB coding; it replaces each m-bit group with an n-bit group. A. Line coding B. Block coding C. Scrambling D. None of these Question 9. Block coding can help in _______ at the receiver. A. Synchronization B. Error detection C. Attenuation D. (a) and (b) Question 10. The _____ scheme uses data patterns of size 2 and encodes the 2-bit patterns as one signal element belonging to a four-level signal. A. MLT-3 B. 4B5B C. 2B1Q D. none of these

More Practice Quiz in Digital Transmission

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Practice Quiz Part 4

Practice Quiz Part 5

Complete Practice Quiz in Data Communications and Networking

Note: After taking this particular quiz, you can proceed to check all the topics.

Complete Practice Quiz in Data Communications and Networking

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