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Practice Quiz in Digital and Data Communication Networks Part 34

(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 34 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 XXXIV of the Online Practice Quiz

Quiz in Digital and Data Communication Networks

Question 331. It is proposed network designed by major telephone companies in conjunction with the ITU-T with the intent of providing worldwide telecommunications support for voice, data, video and facsimile information within the same network

A. ISDN

B. Broadband communications

C. ATM

D. Ethernet

Question 332. A popular PC protocol is

A. Parity

B. Xmodem

C. CRC

D. LRC

Question 333. A longitudinal redundancy check produces

A. block check character

B. parity bit

C. CRC

D. error correction

Question 334. Form of multiplexing that constitutes propagating signals from different cables that sre contained within the same trench

A. Wavelength division multiplexing

B. Wave division multiplexing

C. Space division multiplexing

D. Frequency division multiplexing

Question 335. It is the process of extracting a phase-coherent reference carrier from a receiver signal

A. Phase referencing

B. Trellis code

C. Squaring loop

D. Any of these

Question 336. Digital signals

A. do not provide a continuous set of values

B. represent values as discrete steps

C. can utilize decimal or binary systems

D. All of these

Question 337. An FDM hierarchy which is formed by frequency – division multiplexing 10 super groups together for a combined capacity of 600 voice band message channels

A. Supergroup

B. Group

C. Mastergroup

D. Jumbogroup

Question 338. It is a low-quality video transmission for use between non-dedicated subscribers

A. Digital phone

B. Picturephone

C. Cameraphone

D. Cellphone with camera

Question 339. What type of mastergroup that can be further multiplexed and used for higher-capacity microwave radio systems?

A. A600

B. U600

C. L600

D. L400

Question 340. A forward error correcting code corrects errors by

A. requiring partial transmission of the entire signal

B. requiring retransmission of the entire signal

C. requiring no part of the signal to be transmitted

D. using parity to correct the errors in all cases

List of Practice Quizzes

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