Practice Quiz in Digital and Data Communication Networks Part 13

Quiz in Digital and Data Communication Networks

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This is the Online Practice Quiz in Digital and Data Communication Networks Part 13 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 XIII of the Online Practice Quiz

Quiz in Digital and Data Communication Networks

Question 121. The time it takes to transmit one TDM frame is called _________.

A. Slot time

B. Frame time

C. Transmission time

D. Any of these

Question 122. A modulation process that involves conversion of a waveform from analog to digital form by means of coding.

A. PDM

B. PCM

C. PLM

D. PAM

Question 123. Packets which is self – contained and travels through the network independent of other packets of the same message by whatever means available.

A. Packet

B. Frame

C. Datagram

D. Data

Question 124. Data transmission of the character at a time with start and stop bits is known as what type of transmission?

A. asynchronous

B. serial

C. synchronous

D. parallel

Question 125. Classification of protocol that interprets a frame of data as a group of successive bit combined into predetermined pattern of fixed length, usually 8 bits each.

A. Character-oriented protocols

B. Byte-oriented protocols

C. Bit-oriented protocols

D. Character and Byte-oriented protocols

Question 126. It is simply the data rate at which serial PCM bits are clocked out of the PCM encoder onto the transmission line.

A. line speed

B. baud rate

C. output rate

D. bit rate

Question 127. The magnitude difference between adjacent steps in quantization is called __________.

A. Quantum

B. Step size

C. Resolution

D. Any of these

Question 128. A modem converts

A. Analog signals to digital

B. Digital signals to analog

C. Digital signals to analog and vice-versa

D. None of these

Question 129. Time – division multiplex

A. can be used with PCM only

B. combines five groups into supergroup

C. stacks 24 channels in adjacent frequency slots

D. interleaves pulses belonging to different transmissions

Question 130. Information capacity is convenient to express as

A. baud

B. bits

C. dot length

D. bits per second or bps

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