Practice Quiz in Digital and Data Communication Networks Part 12

This is the Online Practice Quiz in Digital and Data Communication Networks Part 12 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 XII of the Online Practice Quiz

Quiz in Digital and Data Communication Networks Question 111. A carrier recovery is needed with A. FSK B. BPSK C. DPSK D. QAM Question 112. These are used for transmission of PCM encoded time – division multiplexed digital signal. A. I carriers B. E carriers C. A carriers D. T carriers Question 113. It is the processing of analog signals using digital methods and includes band limiting and signals with filters, amplitude equalization, and phase shifting A. Digital communications B. Digital Signal Processing C. Data communications D. Carrier recovery method Question 114. Data communications refers to the transmission of A. voice B. video C. computer data D. All of these Question 115. It is a network access method used primarily with LANs configured in a ring topology using either baseband or broadband transmission formats A. Ethernet B. Token passing C. Token ring D. Token bus Question 116. The primary advantage of digital transmission A. economical B. reliability C. noise immunity D. efficiency Question 117. It is how the primary designates the secondary as the designation of recipient of data. A. Line turnaround B. Selection C. Line control D. Control Protocol Question 118. Type of PCM which is designed to take advantage of the sample-to-sample redundancies in the typical speech waveform A. Single – bit PCM code B. Pulse Code Modulation C. Differential PCM D. Delta modulation Question 119. The number of amplitude, frequency, or phase changes that take place per second is known as the A. data rate in bits per second B. frequency of operation C. speed limit D. baud rate Question 120. It is defined as knowledge or intelligence that is communicated between two or more points. A. Carrier B. Sideband C. Information D. Broadband

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