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Recent questions tagged checksum
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Andrew S. Tanenbaum Edition 5th Exercise 3 Question 15 (Page No. 253)
Suppose that a message 1001 1100 1010 0011 is transmitted using Internet Checksum (4-bit word). What is the value of the checksum?
ajaysoni1924
asked
in
Computer Networks
Mar 16, 2019
by
ajaysoni1924
7.2k
views
computer-networks
data-link-layer
tanenbaum
error-detection
checksum
0
votes
0
answers
2
doubt
Prateek kumar
asked
in
Computer Networks
Mar 15, 2017
by
Prateek kumar
233
views
computer-networks
checksum
2
votes
2
answers
3
TCP and UDP checksum
Consider a scenario where UDP receiver computes the Internet checksum for the received UDP segment and finds that it matches the value carried in the checksum field. Which of the statement below is true with respect to the above scenario? Receiver is absolutely sure ... error Answer given is D but I feel it should be B because Tcp checksum is calculated on data and header both.
reena_kandari
asked
in
Computer Networks
Feb 8, 2017
by
reena_kandari
2.2k
views
computer-networks
tcp
checksum
1
vote
1
answer
4
Checksum
The check sum of 10010010 and 00111000 (8 bit segment) is ___________ : (1) 00110110 (2) 11001010 (3) 00110101 (4) None of these I am getting the answer as 11001010 , so option should be (2) , but in key the option is 3?
vishwa ratna
asked
in
Computer Networks
Jan 15, 2017
by
vishwa ratna
3.6k
views
checksum
2
votes
1
answer
5
checksum
Q. Calculate the checksum for the following ICMP packet: Type: Echo Request Identifier: 123 Sequence number: 25 Message: HELLO Assume that message is divided into 8-bits(1 bytes)
Akriti sood
asked
in
Computer Networks
Oct 23, 2016
by
Akriti sood
4.3k
views
computer-networks
checksum
4
votes
2
answers
6
UGC NET CSE | August 2016 | Part 3 | Question: 27
In CRC checksum method, assume that given frame for transmission is 1101011011 and the generator polynomial is $G(x) = x^{4}+ x + 1$. After implementing $CRC$ encoder, the encoded word sent from sender side is _____. 11010110111110 11101101011011 110101111100111 110101111001111
makhdoom ghaya
asked
in
Computer Networks
Oct 1, 2016
by
makhdoom ghaya
16.6k
views
ugcnetcse-aug2016-paper3
computer-networks
crc-polynomial
checksum
6
votes
2
answers
7
Transport Layer
In Transport layer either in TCP header or UDP header in checksum field we calculate checksum for Pseudo header of IP + header of TCP/UDP + data of TCP/UDP. Transport layer should fill checksum field in header before the Segment pass to Network layer. Here my doubt is how TL knows the IP header which is going to create in next step NL ?
SaiPrasadKousika
asked
in
Computer Networks
Aug 27, 2016
by
SaiPrasadKousika
1.7k
views
transport-layer
computer-networks
tcp
udp
header
checksum
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