Recent questions tagged tcp

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1

TCP acknowledgement number
An ACK number of $1000$ in TCP always means that $999$ bytes have been successfully received $1000$ bytes have been successfully received $1001$ bytes have been successfully received None of the above

asked 22 hours ago in Computer Networks by bts (77 points) | 22 views

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2

Self doubt - TCP
True or False An acknowledgement by TCP sender means that data is delivered to the application process.

asked 3 days ago in Computer Networks by Harsh Kumar (177 points) | 13 views

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3

TCP types (importance for GATE)
Should I really remember the differences between (or may really care about) the Tahoe TCP and Reno TCP for GATE ?

asked 3 days ago in Computer Networks by Harsh Kumar (177 points) | 14 views

+2 votes

1 answer

4

TCP - Stanford Lectures
In one of the quizes, they asked the following question : "A server typically listens for TCP connections on a particular port (e.g. 80 for HTTP or 22 for SSH). Which fields can the server use to distinguish packets for a particular ... address from the packet received from the client... (After all, this destination IP address corresponds to the Server itself !).

asked 5 days ago in Computer Networks by Harsh Kumar (177 points) | 30 views

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5

tcp congestion control
i have a self doubt that till now i solve the TCP question where the sender has $1\hspace{0.1cm}mss$ at starting so during time out generally reduced the senders window size to $1 \hspace{0.1cm}mss$ but now there is a question that supposes that at starting the sender has $2 ... sender size i.e we will put it down to $1 \hspace{0.1cm}mss$ or to $2\hspace{0.1cm}mss$ .........

asked May 27 in Computer Networks by eyeamgj Active (2.3k points) | 73 views

+1 vote

2 answers

6

TCP Connection
"TCP connection is logical, therefore TCP can be connection oriented protocol" Wha is meaning of logical connection? Can u discuss brief above two lines?

asked Mar 15 in Computer Networks by srestha Veteran (86.4k points) | 113 views

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7

TCP question
Consider two TCP senders $T_{1}$, $T_{2}$ each of them is connected with a different line to a router whose capacity is $9000$ $bytes$. The bandwidth of each of these lines is infinite and the delay of each TCP sender to the router is $11$ $milliseconds$. ... is 2000kbps / 21Mbps + 11msec =.. After the other tcp sender starts to send data the shared common line will be 21Mbps/2

asked Mar 12 in Computer Networks by JakeSmT (17 points) | 81 views

+5 votes

3 answers

8

GATE2018-25
Consider a long-lived $TCP$ session with an end-to-end bandwidth of $1$ $\text{Gbps}$ (-$10^9$ bits-per-second). The session starts with a sequence number of $1234$. The minimum time (in seconds, rounded to the closet integer) before this sequence number can be used again is ____

asked Feb 14 in Computer Networks by gatecse Boss (18k points) | 3.4k views

+5 votes

1 answer

9

GATE2018-14
Consider the following statements regarding the slow start phase of the TCP congestion control algorithm. Note that cwnd stands for the TCP congestion window and MSS window denotes the Maximum Segments Size The cwnd increases by $2$ MSS on every successful acknowledgment The cwnd approximately ... ? Only ii and iii are true Only i and III are true Only iv is true Only i and iv are true

asked Feb 14 in Computer Networks by gatecse Boss (18k points) | 1.8k views

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2 answers

10

Computer Networks
Do all the TCP segments travel through same path once the connection is established ?

asked Feb 12 in Computer Networks by Arunav Khare Active (5k points) | 92 views

+1 vote

1 answer

11

Maximum Segment Size (MSS in TCP) vs Maximum Transmissible Unit (MTU in Data Link)

asked Feb 6 in Computer Networks by Arunav Khare Active (5k points) | 200 views

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12

computer networks
How is a TCP connection terminated if one of the two hosts has dropped the connection and cannot send or receive FIN packets?

asked Jan 30 in Computer Networks by Parimal Paritosh (171 points) | 52 views

+1 vote

1 answer

13

cn TCP doubt
what is the difference between round trip time and propagation delay in tcp/ip protocol? is RTT = 2 * TP ?

asked Jan 27 in Computer Networks by iarnav Loyal (7.2k points) | 69 views

+1 vote

1 answer

14

TCP Congestion control AIMD
Consider an instance of TCP's Additive Increase Multiplicative Decrease (AIMD) algorithm where the window size at the start of slow start phase is 2 KB and the threshold at the start of first transmission is 32 KB. Assume that 3 ... transmission and 1 duplicate ACK received during 6th transmission. what is the congestion window size at the end of 10th transmission?

asked Jan 25 in Computer Networks by Mk Utkarsh Boss (12.6k points) | 224 views

+1 vote

0 answers

15

Computer Network
What is the difference between broadcasting at Data Link Layer and broadcasting at Network Layer? Broadcasting at Data Link Layer is done via MAC address FF:FF:FF:FF:FF:FF while broadcasting at Network Layer is done using broadcast IP address 255.255.255.255 but they essentially do the same thing, sending a packet to every other node in the network.

asked Jan 19 in Computer Networks by Parimal Paritosh (171 points) | 61 views

+1 vote

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16

# computer-networks # test-series
Consider Host A sends a UDP datagram containing 1100 bytes of user data to host B over an ethernet LAN. Maximum transmission unit (MTU) of the network is 206 bytes (including the network layer overhead). Size of UDP header is 10 bytes and size of IP header is ... will be 69. S3 : The MF flag of 6th fragment is set i.e. 1. Which of the following options is correct?

asked Jan 17 in Computer Networks by sunita24 (383 points) | 90 views

+2 votes

1 answer

17

Ack Duplicacy in TCP
After receiving 3 duplicate ACKs sender will go to slow start phase or congestion avoidance? Somewhere, I read that, 3 duplicacy means the weak-possibility of congestion. When does global timer expire?

asked Jan 16 in Computer Networks by Shubhanshu Boss (15k points) | 143 views

+1 vote

0 answers

18

Test Series
Say the receiver host B, has a buffer size of 4500 bytes and 1500 bytes of received and unprocessed data. If the value of congestion window is 3500 bytes then what will be the size of the window for sender host A?( Marks: -0.33 ) 3500 B 4500 ... 3000B as congestion window is 3500 B and receiver window is 4500-1500 = 3000B Can anyone please explain it in details about congestion window?

asked Jan 15 in Computer Networks by ankit_thawal Active (2.1k points) | 72 views

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19

Congestion Control
Please Confirm whether 10 MSS is correct or not ?

asked Dec 20, 2017 in Computer Networks by ankitgupta.1729 Loyal (6k points) | 94 views

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20

TCP SEQUENCE NUMBER DOUBT
I have doubt 1: Segment sequence number is equal to the first sequence number of byte in TCP . Is it right ?

asked Dec 15, 2017 in Computer Networks by hem chandra joshi Active (4.4k points) | 63 views

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21

TCP type of timer configuration
In TCP we use single retransmission timer (associated with oldest unacknowledged segment) or multiple timers(one for each unacknowledged segment)?

asked Dec 12, 2017 in Computer Networks by Jatin18 (285 points) | 39 views

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22

TCP sequence number in case of Dummy packet

asked Dec 11, 2017 in Computer Networks by Chhotu Boss (10.5k points) | 69 views

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1 answer

23

TCP/IP
TCP and UDP are in same session or different session? ----------------------------------------------------------------------------------------------------------- What is meaning of session here? Does it means session layer of OSI model?

asked Dec 9, 2017 in Computer Networks by srestha Veteran (86.4k points) | 148 views

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24

TCP congestion window
Let the size of congestion window of a TCP connection be 38 KB when a timeout occurs. The propagation time of the connection is 100 msec and the maximum segment size used is 2 KB. The time taken (in msec) by the TCP connection to get back to 36 KB congestion window is ________

asked Dec 8, 2017 in Computer Networks by set2018 Loyal (7.6k points) | 79 views

+1 vote

1 answer

25

TCP segment
When the advertized window by the receiver is 0, the sender can not send any type of segment. True or false

asked Dec 7, 2017 in Computer Networks by set2018 Loyal (7.6k points) | 77 views

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1 answer

26

TCP RTT

asked Dec 5, 2017 in Computer Networks by Parshu gate Active (4.9k points) | 102 views

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27

TCP for virtual circuits
TCP can be implemented in virtual circuits. (TRUE /FALSE ) Explain.

asked Dec 3, 2017 in Computer Networks by yogi_p Active (1.7k points) | 58 views

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28

TCP Congestion window
Consider Communication channel using the TCP over the channel. In this channel the congestion window varies from (W*MSS)/2 to W*MSS. If only one packet is lost over each period of time. Then what is the lost rate: A) 1/ (3/8 * W*W + 3W/4) B).1/ (3/4 * W + 3W/4) C) 1 / (3/8 * W*W + 3W/8) D) 1 / (3/4 * W*W + 3W/4)

asked Dec 3, 2017 in Computer Networks by yogi_p Active (1.7k points) | 48 views

0 votes

1 answer

29

Help with Jacobson Algorithm _ TCP

asked Dec 2, 2017 in Computer Networks by Osha (13 points) | 102 views

+2 votes

1 answer

30

computer network
Email usese tcp or datagram?? if datagram then how will reliability ensure?? if tcp used..then when connection established(generally for single packet we uses datagram protocol) .

asked Nov 12, 2017 in Computer Networks by Ravi prakash pandey Junior (751 points) | 60 views

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