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Recent questions tagged communication
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Telecommunication
Consider that a signal is transmitted over a channel of bandwidth 200 kHz and the total path loss in the channel is found to be 60dB. The noise power per hertz at the receiver is- 100dBm. Determine the required transmit power to achieve data rate of 40kb/s.
rayhanrjt
asked
in
Computer Networks
Dec 14, 2022
by
rayhanrjt
228
views
data
communication
0
votes
1
answer
2
Data Communications and Networks, James Irvine and David Harle, Chapter 8, Question 8.1.2.1
An information source produces 8 different symbols with probabilities 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/128. These symbols are encoded as 000, 001, 010, 011, 100, 101, 110 and 111, ... ) What is the amount of information per symbol? (ii) What are the probabilities of occurrence for a 0 and a 1?
xnanx
asked
in
Study Resources
Dec 19, 2021
by
xnanx
304
views
communication
data
0
votes
1
answer
3
Kurose and Ross Edition 6 Exercise 3 Question R9 (Page No 286)
In our rdt protocols, why did we need to introduce sequence numbers?
ajaysoni1924
asked
in
Computer Networks
Apr 18, 2019
by
ajaysoni1924
673
views
computer-networks
kurose-and-ross
transport-layer
communication
descriptive
0
votes
1
answer
4
Andrew S. Tanenbaum Edition 5 Exercise 4 Question 10 (Page No. 351)
Consider five wireless stations, A, B, C, D, and E. Station A can communicate with all other stations. B can communicate with A, C and E. C can communicate with A, B and D. D can communicate with A, C and ... is sending to A, what other communications are possible? (c) When B is sending to C, what other communications are possible?
ajaysoni1924
asked
in
Computer Networks
Mar 15, 2019
by
ajaysoni1924
1.8k
views
computer-networks
tanenbaum
mac-protocol
lan-technologies
communication
1
vote
1
answer
5
MadeEasy Workbook: Computer Networks - Network Communication
What signal-to-noise ratio is needed to put a T1 carrier on a 50-kHz line?
Sumit Singh Chauhan
asked
in
Computer Networks
Aug 6, 2018
by
Sumit Singh Chauhan
2.3k
views
computer-networks
communication
made-easy-booklet
0
votes
0
answers
6
MadeEasy Test Series: Computer Networks - Communication
To transmit 100 digitized voice channel using a channel of 20 KHz. what should be the ratio of bits/hertz if we use no guard band. assume the human voice normally contains frequencies from 0 to 4000 hz and assume 8 bits per sample.
Jaggi
asked
in
Computer Networks
Jul 10, 2018
by
Jaggi
575
views
computer-networks
physical-layer
made-easy-test-series
communication
2
votes
0
answers
7
MadeEasy Test Series 2017: Computer Networks - Communication
Assume there are 100 nodes are connected to a 1000 meter length of the coaxial cable. Using some protocol, each node can transmit 50 frames/second, where the average frame length is 2500 bits. The transmission rate at each node is 108 ... is ________. (Upto 1 decimal place) I got .125 but given is 12.5%?Please check which is correct?
rahul sharma 5
asked
in
Computer Networks
Dec 30, 2017
by
rahul sharma 5
685
views
made-easy-test-series
computer-networks
communication
madeeasy-testseries-2017
1
vote
0
answers
8
Transfering Data and Transmitter Power, is there any idea?
We have one 1-MB file that in 1second moved from 1Mhz channel with 60db Attenuation. if the density of power to noise be -174 dBm/Hz, the transmitter power is equal to 1Micro Watt. My question is how this value be calculated? any idea?
DrMhmd
asked
in
Computer Networks
Aug 4, 2016
by
DrMhmd
545
views
computer-networks
network-layering
communication
network-protocols
2
votes
1
answer
9
UGC NET CSE | December 2013 | Part 3 | Question: 48
____ is a type of transmission impairment in which the signal looses strength due to the resistance of the transmission medium Attenuation Distortion Noise Decibel
go_editor
asked
in
Computer Networks
Jul 29, 2016
by
go_editor
3.4k
views
ugcnetcse-dec2013-paper3
computer-networks
communication
non-gate
3
votes
1
answer
10
UGC NET CSE | December 2013 | Part 3 | Question: 46
A client-server system uses a satellite network, with the satellite at a height of 40,000 kms. What is the best-case delay in response to a request? (Note that the speed of light in air is 3,00,000 km/second) 133.33 m sec 266.67 m sec 400.00 m sec 533.33 m sec
go_editor
asked
in
Computer Networks
Jul 29, 2016
by
go_editor
6.3k
views
ugcnetcse-dec2013-paper3
communication
computer-networks
2
votes
1
answer
11
UGC NET CSE | December 2013 | Part 3 | Question: 43
What is the bit rate for transmitting uncompressed 800 $\times$ 600 pixel colour frames with 8 bits/pixel at 40 frames/second? 2.4 Mbps 15.36 Mbps 153.6 Mbps 1536 Mbps
go_editor
asked
in
Computer Networks
Jul 29, 2016
by
go_editor
6.8k
views
ugcnetcse-dec2013-paper3
computer-networks
communication
0
votes
3
answers
12
UGC NET CSE | December 2012 | Part 2 | Question: 3
The GSM network is divided into the following three major systems: SS, BSS, OSS BSS, BSC, MSC CELL, BSS, OSS SS, CELL, MSC
go_editor
asked
in
Computer Networks
Jul 8, 2016
by
go_editor
4.3k
views
ugcnetcse-dec2012-paper2
computer-networks
communication
mobile-communication
1
vote
1
answer
13
UGC NET CSE | June 2012 | Part 3 | Question: 64
Match the following with link quality measurement and handoff initiation : ... $\text{(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)}$
go_editor
asked
in
Computer Networks
Jul 7, 2016
by
go_editor
1.3k
views
computer-networks
communication
ugcnetcse-june2012-paper3
2
votes
1
answer
14
UGC NET CSE | June 2012 | Part 2 | Question: 45
_____ is a satellite based tracking system that enables the determination of person’s position Bluetooth WAP Short Message Service Global Positioning System
go_editor
asked
in
Computer Networks
Jul 5, 2016
by
go_editor
1.6k
views
computer-networks
communication
ugcnetcse-june2012-paper2
2
votes
1
answer
15
UGC NET CSE | June 2012 | Part 2 | Question: 39
For the transmission of the signal. Bluetooth wireless technology uses time division multiplexing frequency division multiplexing time division duplex frequency division duplex
go_editor
asked
in
Computer Networks
Jul 5, 2016
by
go_editor
2.7k
views
computer-networks
communication
ugcnetcse-june2012-paper2
2
votes
1
answer
16
UGC NET CSE | June 2012 | Part 2 | Question: 19
The station to hub distance in which it is 2000 meters 100 Base-T$_X$ 100 Base-F$_X$ 100 Base-T$_4$ 100 Base-T$_1$
go_editor
asked
in
Computer Networks
Jul 5, 2016
by
go_editor
4.0k
views
ugcnetcse-june2012-paper2
computer-networks
communication
0
votes
1
answer
17
UGC NET CSE | June 2014 | Part 3 | Question: 06
In a digital transmission, the receiver clock is $0.1$ percent faster than the sender clock. How many extra bits per second does the receiver receive if the data rate is $1$ Mbps ? $10$ bps $100$ bps $1000$ bps $10000$ bps
makhdoom ghaya
asked
in
Computer Networks
Jul 4, 2016
by
makhdoom ghaya
11.2k
views
ugcnetjune2014iii
computer-networks
communication
7
votes
4
answers
18
ISRO2014-45
Consider a $50$ kbps satellite channel with a $500$ milliseconds round trip propagation delay. If the sender wants to transmit $1000$ bit frames, how much time will it take for the receiver to receive the frame? $250$ milliseconds $20$ milliseconds $520$ milliseconds $270$ milliseconds
go_editor
asked
in
Computer Networks
Jul 1, 2016
by
go_editor
8.0k
views
isro2014
computer-networks
communication
6
votes
2
answers
19
ISRO2015-49
What frequency range is used for microwave communications, satellite and radar? Low frequency$: 30$ kHz to $300$ kHz Medium frequency$: 300$ kHz to $3$ MHz Super high frequency$: 3000$ MHz to $30000$ MHz Extremely high frequency$: 30000$ kHz
go_editor
asked
in
Computer Networks
Jun 19, 2016
by
go_editor
3.7k
views
isro2015
computer-networks
communication
7
votes
1
answer
20
ISRO2008-9
What is the bandwidth of the signal that ranges from $40$ kHz $4$ MHz $36$ MHz $360$ kHz $3.96$ MHz $396$ kHz
go_editor
asked
in
Computer Networks
Jun 10, 2016
by
go_editor
7.4k
views
isro2008
communication
non-gate
12
votes
2
answers
21
ISRO2007-24, ISRO2016-67
Bit stuffing refers to inserting a $0$ in user stream to differentiate it with a flag inserting a $0$ in flag stream to avoid ambiguity appending a nipple to the flag sequence appending a nipple to the use data stream
go_editor
asked
in
Computer Networks
Jun 10, 2016
by
go_editor
9.7k
views
isro2007
communication
isro2016
7
votes
2
answers
22
ISRO2007-22
Phase transition for each bit are used in Amplitude modulation Carrier modulation Manchester encoding NRZ encoding
go_editor
asked
in
Computer Networks
Jun 10, 2016
by
go_editor
3.9k
views
isro2007
computer-networks
communication
9
votes
3
answers
23
ISRO2007-20
If the bandwidth of a signal is $5$ kHz and the lowest frequency is $52$ kHz, what is the highest frequency $5$ kHz $10$ kHz $47$ kHz $57$ kHz
go_editor
asked
in
Computer Networks
Jun 10, 2016
by
go_editor
10.2k
views
isro2007
communication
5
votes
2
answers
24
ISRO2007-13
By using an eight bit optical encoder the degree of resolution that can be obtained is (approximately) $1.8^\circ$ $3.4^\circ$ $2.8^\circ$ $1.4^\circ$
go_editor
asked
in
Computer Networks
Jun 10, 2016
by
go_editor
4.6k
views
isro2007
communication
encoding
0
votes
5
answers
25
UGC NET CSE | June 2014 | Part 2 | Question: 01
Infrared signals can be used for short range communication in a closed area using _______ propagation. Ground Sky Line of sight Space
makhdoom ghaya
asked
in
Computer Networks
Jun 5, 2016
by
makhdoom ghaya
5.2k
views
ugcnetcse-june2014-paper2
communication
non-gate
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