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Recent questions tagged tcp
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1
Kurose and Ross Edition 6 Exercise 3 Question R18 (Page No 288)
True or false? Consider congestion control in TCP. When the timer expires at the sender, the value of ssthresh is set to one half of its previous value.
asked
Apr 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
150
views
computer-networks
transport-layer
congestion-control
descriptive
tcp
0
votes
2
answers
2
Kurose and Ross Edition 6 Exercise 3 Question R17 (Page No 287)
Suppose two TCP connections are present over some bottleneck link of rate R bps. Both connections have a huge file to send (in the same direction over the bottleneck link). The transmissions of the files start at the same time. What transmission rate would TCP like to give to each of the connections?
asked
Apr 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
85
views
computer-networks
transport-layer
tcp
congestion-control
descriptive
0
votes
1
answer
3
Kurose and Ross Edition 6 Exercise 3 Question R15 (Page No 287)
Suppose Host A sends two TCP segments back to back to Host B over a TCP connection. The first segment has sequence number 90; the second has sequence number 110. How much data is in the first segment? Suppose that the ... segment arrives at B. In the acknowledgment that Host B sends to Host A, what will be the acknowledgment number?
asked
Apr 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
159
views
computer-networks
transport-layer
tcp
descriptive
0
votes
1
answer
4
Kurose and Ross Edition 6 Exercise 3 Question R14 (Page No 287)
True or false? Host A is sending Host B a large file over a TCP connection. Assume Host B has no data to send Host A. Host B will not send acknowledgments to Host A because Host B cannot piggyback the acknowledgments ... 4 bytes of data over a TCP connection to Host B. In this same segment the acknowledgment number is necessarily 42.
asked
Apr 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
86
views
computer-networks
transport-layer
tcp
descriptive
0
votes
1
answer
5
Kurose and Ross Edition 6 Exercise 3 Question R10 (Page No 286)
In our rdt protocols, why did we need to introduce timers?
asked
Apr 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
60
views
computer-networks
transport-layer
descriptive
tcp
udp
0
votes
2
answers
6
Kurose and Ross Edition 6 Exercise 3 Question R5 (Page No 286)
Why is it that voice and video traffic is often sent over TCP rather than UDP in today’s Internet? (Hint: The answer we are looking for has nothing to do with TCP’s congestion-control mechanism.)
asked
Apr 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
19
views
computer-networks
transport-layer
tcp
descriptive
0
votes
1
answer
7
Kurose and Ross Edition 6 Exercise 3 Question R4 (Page No 286)
Describe why an application developer might choose to run an application over UDP rather than TCP.
asked
Apr 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
50
views
computer-networks
transport-layer
tcp
udp
descriptive
0
votes
1
answer
8
Kurose and Ross Edition 6 Exercise 3 Question R3 (Page No 286)
Consider a TCP connection between Host A and Host B. Suppose that the TCP segments traveling from Host A to Host B have source port number x and destination port number y. What are the source and destination port numbers for the segments traveling from Host B to Host A?
asked
Apr 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
47
views
computer-networks
transport-layer
descriptive
tcp
0
votes
1
answer
9
Kurose and Ross Edition 6 Exercise 2 Question R8 (Page No 169)
List the four broad classes of services that a transport protocol can provide. For each of the service classes, indicate if either UDP or TCP (or both) provides such a service.
asked
Apr 10
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
42
views
computer-networks
tcp
udp
application-layer-protocols
descriptive
0
votes
0
answers
10
Andrew S. Tanenbaum Edition 5th Exercise 6 Question 35 (Page No. 609)
To address the limitations of IP version 4, a major effort had to be undertaken via IETF that resulted in the design of IP version 6 and there are still is significant reluctance in the adoption of this new version. However, no such major effort is needed to address the limitations of TCP. Explain why this is the case.
asked
Mar 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
44
views
computer-networks
tanenbaum
transport-layer
tcp
ipv6
+1
vote
1
answer
11
Andrew S. Tanenbaum Edition 5th Exercise 6 Question 34 (Page No. 609)
What is the fastest line speed at which a host can blast out 1500-byte TCP payloads with a 120-sec maximum packet lifetime without having the sequence numbers wrap around? Take TCP, IP, and Ethernet overhead into consideration. Assume that Ethernet frames may be sent continuously.
asked
Mar 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
38
views
computer-networks
tanenbaum
transport-layer
tcp
0
votes
1
answer
12
Andrew S. Tanenbaum Edition 5th Exercise 6 Question 33 (Page No. 609)
A TCP machine is sending full windows of 65,535 bytes over a 1-Gbps channel that has a 10-msec one-way delay. What is the maximum throughput achievable? What is the line efficiency?
asked
Mar 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
54
views
computer-networks
tanenbaum
transport-layer
tcp
0
votes
1
answer
13
Andrew S. Tanenbaum Edition 5th Exercise 6 Question 32 (Page No. 609)
If the TCP round-trip time, RTT, is currently 30 msec and the following acknowledgements come in after 26, 32, and 24 msec, respectively, what is the new RTT estimate using the Jacobson algorithm? Use α = 0.9.
asked
Mar 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
51
views
computer-networks
tanenbaum
transport-layer
tcp
0
votes
1
answer
14
Andrew S. Tanenbaum Edition 5th Exercise 6 Question 30 (Page No. 609)
Consider the effect of using slow start on a line with a 10-msec round-trip time and no congestion. The receive window is 24 KB and the maximum segment size is 2 KB. How long does it take before the first full window can be sent?
asked
Mar 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
50
views
computer-networks
transport-layer
tcp
congestion-control
0
votes
0
answers
15
Andrew S. Tanenbaum Edition 5th Exercise 6 Question 29 (Page No. 609)
Describe two ways to get into the SYN RCVD state of Figure.
asked
Mar 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
19
views
computer-networks
tanenbaum
transport-layer
tcp
descriptive
0
votes
1
answer
16
Andrew S. Tanenbaum Edition 5th Exercise 6 Question 28 (Page No. 608)
The maximum payload of a TCP segment is 65,495 bytes. Why was such a strange number chosen?
asked
Mar 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
47
views
computer-networks
transport-layer
descriptive
tcp
tanenbaum
0
votes
0
answers
17
Andrew S. Tanenbaum Edition 5th Exercise 6 Question 27 (Page No. 608)
In Fig. 6-36 we saw that in addition to the 32-bit acknowledgement field, there is an ACK bit in the fourth word. Does this really add anything? Why or why not?
asked
Mar 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
60
views
computer-networks
transport-layer
descriptive
tcp
tanenbaum
0
votes
0
answers
18
Andrew S. Tanenbaum Edition 5th Exercise 6 Question 26 (Page No. 608)
A process on host 1 has been assigned port p, and a process on host 2 has been assigned port q. Is it possible for there to be two or more TCP connections between these two ports at the same time?
asked
Mar 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
27
views
computer-networks
transport-layer
descriptive
tcp
0
votes
0
answers
19
Andrew S. Tanenbaum Edition 5th Exercise 6 Question 23 (Page No. 608)
Datagram fragmentation and reassembly are handled by IP and are invisible to TCP. Does this mean that TCP does not have to worry about data arriving in the wrong order?
asked
Mar 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
38
views
computer-networks
tanenbaum
transport-layer
descriptive
tcp
0
votes
1
answer
20
Andrew S. Tanenbaum Edition 5th Exercise 6 Question 22 (Page No. 608)
What is the total size of the minimum TCP MTU, including TCP and IP overhead but not including data link layer overhead?
asked
Mar 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
26
views
computer-networks
tanenbaum
transport-layer
tcp
descriptive
0
votes
1
answer
21
Andrew S. Tanenbaum Edition 5th Exercise 6 Question 19 (Page No. 608)
Both UDP and TCP use port numbers to identify the destination entity when delivering a message. Give two reasons why these protocols invented a new abstract ID (port numbers), instead of using process IDs, which already existed when these protocols were designed.
asked
Mar 18
in
Computer Networks
by
ajaysoni1924
Boss
(
10.5k
points)
|
40
views
computer-networks
transport-layer
udp
tcp
descriptive
0
votes
0
answers
22
Self doubt- TCP congestion control
When during TCP congestion control, timeout occurs in 5th transition, then shall those packets be considered as received or shall be resent? Asking for if question asks for number of transmission to send given number of packets using TCP congestion slow start phase.
asked
Feb 1
in
Computer Networks
by
Markzuck
Junior
(
667
points)
|
54
views
tcp
0
votes
1
answer
23
Ace Test Series 2019: Computer Networks - Congestion Control
asked
Jan 19
in
Computer Networks
by
Na462
Loyal
(
6.9k
points)
|
89
views
computer-networks
tcp
congestion-control
ace-test-series
0
votes
0
answers
24
MadeEasy Subject Test 2019: Computer Networks - Tcp
If TCP RTT is currently 20 ms and following acknowledgement come in after 22,24 and 23 ms respectively. What is new RTT estimate ? 28.527 28.82 20.82 21.22
asked
Jan 16
in
Computer Networks
by
Na462
Loyal
(
6.9k
points)
|
91
views
computer-networks
tcp
madeeasy-testseries-2019
made-easy-test-series
+1
vote
1
answer
25
MadeEasy Test Series 2019: Computer Networks - Congestion Control
here TOTAL 2000 segments need to be sent, and after x RTT, it will send 2001 segments but for total we shall take count of addition of all the previous also na?
asked
Jan 10
in
Computer Networks
by
Markzuck
Junior
(
667
points)
|
157
views
computer-networks
congestion-control
tcp
transport-layer
made-easy-test-series
0
votes
2
answers
26
MadeEasy Test Series 2019: Computer Networls - Congestion Control
Please help, I am getting total number of transmission to get BACK TO 38 as 14 and NOT 15. after 14th, it would have became 38, so no need to consider 15th segment right?
asked
Jan 8
in
Computer Networks
by
Markzuck
Junior
(
667
points)
|
187
views
computer-networks
congestion-control
made-easy-test-series
tcp
transport-layer
0
votes
1
answer
27
MadeEasy Test Series: Computer Networks - IP Packet
Fragmentation is only done at the DATA part of the IP layer and NOT the IP header right? in above, 1st should be 920 instead of 940 as 20B of IP header shall not be counted in fragmentation right? please help with a detailed solution.
asked
Jan 8
in
Computer Networks
by
Markzuck
Junior
(
667
points)
|
128
views
computer-networks
made-easy-test-series
tcp
fragmentation
0
votes
0
answers
28
Computer network tcp congestion control
asked
Jan 7
in
Computer Networks
by
mitesh kumar
(
379
points)
|
77
views
congestion-control
tcp
computer-networks
0
votes
1
answer
29
fast retransmit and fast recovery mechanism
Consider the following plot of TCP window size as a function of time. Assume TCP is operating with slow start, congestion avoidance, fast retransmit and fast recovery mechanism. What is the time interval where the slow start ... value of threshold. It starts congestion avoidance phase again. Please explain in more details about the concept underlying?
asked
Jan 6
in
Computer Networks
by
Sandy Sharma
Active
(
1.2k
points)
|
80
views
computer-networks
tcp
congestion-control
0
votes
0
answers
30
Does each ACK packet also include window size in TCP connection?
While solving a question I ran through the following statement: RcvWindow is the part of the receiver's buffer that's changing all the time depending on the processing capability at the receiver's side and the network traffic ... window size is also conveyed with ACK? If not then how does sender knows about the changed window size?
asked
Dec 28, 2018
in
Computer Networks
by
Pratik Gawali
Active
(
1.1k
points)
|
60
views
computer-networks
tcp
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