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Communication Engineering Practice Test Questions
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Avg score: 50% • Most missed: “In QAM, the amplitude is _____________and phase is _____________”

Communication Engineering, aka TeleCommunication Engineering covers topics such as basic circuit design to strategic mass developments. A telecommunication engineer is responsible for designing and overseeing the installation of telecommunications equipment and facilities, such as complex electronic switching systems, and other plain old telephone service facilities, optical fiber cabling, IP networks, and microwave transmission systems. Telecommunications engineering also overlaps with broadcast engineering. (Source: Wikipedia)

Communication Engineering Practice Test Questions
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25 Questions

1. The length of the code-word obtained by encoding quantized sample is equal to
2. A PWM signal can be generated by
3. Which term is used for moving PCM samples from one time slot to another?
4. Which conveys more information?
5. 2 QUANTIZATION
6. _____________ is based on FDMA/FDD.
7. From the following given tree, what is the code word for the character ‘a’?
8. How error detection and correction is done?
9. Coherent PSK and non coherent orthogonal FSK have a difference of............. in PB.
10. A rate distortion function is a
11. The real part of an antenna’s input impedance is due to _____________
12. What will be the cost of the code if character ci is at depth di and occurs at frequency fi?
13. _____________ are utilized to allow synchronization of the receivers between different slots and frames.
14. Which type of demodulator is used in the frequency hopping technique?
15. M-ary modulation schemes have very good power efficiency.
16. Which duration is shorter?
17. Examples of nyquist filters are
18. IS-95 was not compatible with existing AMPS frequency band.
19. Which is more efficient method?
20. Equalization method which is done by tracking a slowly time varying channel response is
21. Mutual information should be
22. Low frequency noise is _____________
23. Sum of a periodic and aperiodic signal always be an aperiodic signal.
24. If each pulse of the sequence to be detected is in............. shape, the pulse can be detected without ISI.
25. The range of amplitude difference gives the value of

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