Don't need to elaborate the answer. Just write down the correct answer. following 1) Which of the following line coding scheme is not self-synchronizing? a) NRZ-I b) Unipolar c) MAN d) DMAN 2) Consider a noiseless channel with a bandwidth of 4kHz. If we want to transmit 32Kbps on this channel, levels needed is the minimum number of signal a) 16 b) 24 c) 64 d) 8 3) How a) 8 b) 7 many bits are needed if a digital signal has 400 levels? c) 9 d) 5 4) In a 4B-6B block coding scheme, how many unused sequences a) 48 b) 24 c) 8 d)16 there? DMAN? 5) What would be the minimum bandwidth of MAN and a) 4 times that of NRZ b) 2 times that of NRZ c) 8 times that of NRZ d) same as NRZ e) All are correct 6) encoding has a transition at the beginning of each 0 bit. a) NRZ b) MLT-3 c) Manchester d) Differential Manchester 7) Which encoding method uses alternating positive and negative values for 1s? a) NRZ b) MLT-3 c) Manchester d) AMI 8) PCM is an example of a) digital-to-digital b) digital-to-analog c) analog-to-digital d) analog-to-analog conversion.
Don't need to elaborate the answer. Just write down the correct answer. following 1) Which of the following line coding scheme is not self-synchronizing? a) NRZ-I b) Unipolar c) MAN d) DMAN 2) Consider a noiseless channel with a bandwidth of 4kHz. If we want to transmit 32Kbps on this channel, levels needed is the minimum number of signal a) 16 b) 24 c) 64 d) 8 3) How a) 8 b) 7 many bits are needed if a digital signal has 400 levels? c) 9 d) 5 4) In a 4B-6B block coding scheme, how many unused sequences a) 48 b) 24 c) 8 d)16 there? DMAN? 5) What would be the minimum bandwidth of MAN and a) 4 times that of NRZ b) 2 times that of NRZ c) 8 times that of NRZ d) same as NRZ e) All are correct 6) encoding has a transition at the beginning of each 0 bit. a) NRZ b) MLT-3 c) Manchester d) Differential Manchester 7) Which encoding method uses alternating positive and negative values for 1s? a) NRZ b) MLT-3 c) Manchester d) AMI 8) PCM is an example of a) digital-to-digital b) digital-to-analog c) analog-to-digital d) analog-to-analog conversion.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Please provide all question answer. Don’t elaborate. Need urgent answer
Transcribed Image Text:Don't need to elaborate the answer. Just write down the correct answer.
1) Which of the following line coding scheme is not self-synchronizing?
a) NRZ-I b) Unipolar c) MAN d) DMAN
2) Consider a noiseless channel with a bandwidth of 4kHz. If we want to transmit 32Kbps on this
channel,
the
minimum
number
of
signal
levels
needed is
a) 16 b) 24 c) 64 d) 8
3) How
a) 8 b) 7
many bits are needed if a digital
digital
c) 9 d) 5
signal
signal has 400 levels?
4) In a 4B-6B block coding scheme, how many unused sequences are there?
a) 48 b) 24 c) 8 d)16
5) What would be the minimum bandwidth of MAN and DMAN?
a) 4 times that of NRZ b) 2 times that of NRZ c) 8 times that of NRZ d) same as NRZ e) All
are correct
6)
encoding has a transition at the
the beginning of each 0 bit.
a) NRZ b) MLT-3 c) Manchester d) Differential Manchester
7) Which encoding method uses alternating positive and negative values for 1s?
a) NRZ b) MLT-3 c) Manchester d) AMI
8)
PCM
is
an
example
of
a) digital-to-digital b) digital-to-analog c) analog-to-digital d) analog-to-analog
conversion.
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