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Practice Quiz in Digital and Data Communication Networks Part 32

(Last Updated On: December 20, 2017)Quiz in Digital and Data Communication Networks

This is the Online Practice Quiz in Digital and Data Communication Networks Part 32 as one of the Communications Engineering topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Examination Questions in Electronic System and Technologies, Communications Books, Journals and other Communications References.

Continue Part XXXII of the Online Practice Quiz

Quiz in Digital and Data Communication Networks

Question 311. The most critical and difficult part of receiving a direct – sequence spread spectrum signal is

A. Frequency synthesis

B. Synchronism

C. PSN code generation

D. Carrier recovery

Question 312. Which circuit is most common to both frequency-hopping and direct-sequence spread spectrum transmitters?

A. correlator

B. frequency synthesizer

C. PSN code generator

D. Sweep generator

Question 313. Results when the sample exceeds the highest quantization interval

A. Overload distortion

B. Quantization error

C. Quantization noise

D. Granular noise

Question 314. The type of modulation most often used with direct-sequence spread spectrum is

A. QAM

B. SSB

C. FSK

D. PSK

Question 315. A chip that combines the codec and filter functions in the same LSI chip

A. Monolithic

B. Combo chip

C. Film IC

D. Hybrid chip

Question 316. Emphasizing low-level signals and compressing higher level signals is called

A. quantizing

B. companding

C. pre-emphasis

D. sampling

Question 317. It is often used to compare the performance of one digital modulation technique to another

A. Bandwidth efficiency

B. Spectral efficiency

C. Information density

D. All of these

Question 318. It is the basic building block of FDM hierarchy

A. Character channel

B. Broadband channel

C. Message channel

D. Information capacity

Question 319. Devices used for digitizing speech signals only

A. codec

B. muldem

C. vocoders

D. modem

Question 320. Assigning PCM codes to absolute magnitudes

A. Coding

B. Quantizing

C. Sampling

D. Any of these

List of Practice Quizzes

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