Recent questions tagged flow-control-methods

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I have a doubt regarding Go-Back-N:IN Relationship b/w sequence no. and sender window size(sws) - if sequence no bits(k) is given then sws = (2^k) - 1, if Transmission de...
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Station A needs to send a message consisting of 15 packets to station ‘B’ using a sling window (window size 5) and go-back-N error control strategy. All packets are ready...
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What is the end-to-end delay if A sends two $500 \, \text{byte}$ packets, one after the other, to C? Speed $= 3 \cdot 10^{5} \, \text{km/second}$
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The solution to this question:Consider two hosts $S$ and $D$ are connectedthrough two intermediate routers, router takesnegligibal processing time. Each link bandwidthis ...
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Which of the following is/are TRUE about Go Back N ARQ compared to Selective Repeat ARQ? A) Implementation of GBN ARQ requires more bandwidth B) Error probability is more...
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In a “go back N” pipelined protocol, the sender maintains a window which identifies the sequence number of packets it is allowed to send. When the sender receives a (posi...
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Ben Bitdiddle implements a reliable data transport protocol intended to provide "exactly once" semantics. Each packet has an 8-bit incrementing sequence number, starting ...
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In first option one bit error to merge two consecutive frames into one – I cannot understand this. B should be 2^k/2-1 for selective reject. It should be false . Right??
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A 2 Mbps satellite links 2 ground stations. Height of the satellite from the ground station is 10,000 Km and speed of signal is 3 × 108 m/s. Given packet size = 100 B. Fi...
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Can someone explain it to me as to why in selective repeat it's not possible for an acknowledgment to come for a packet that falls outside the current window? Because it ...
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Which of the following techniques are used to control data flow?WindowingRouting$\text{RPCs}$Buffering $1,4$$2,3,4$$1,3,4$$1,2,3,4$
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Consider an error-free 64-kbps satellite channel used to send 512-byte data frames inone direction, with very short acknowledgements coming back the other way. What isthe...
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A 3000-km-long T1 trunk is used to transmit 64-byte frames using Protocol GO back N. If thepropagation speed is 6 μsec/km, how many bits should the sequence numbers be?(...
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A Selective Repeat ARQ is using 7 bits to represent the sequence numbers.The maximum window size is __________.(ans is 64)why It is
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Assume in TCP client is sending segment to server. After successfully receiving segments from client, server is waiting for next segments and clients is also waiting for ...
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Here in LIST—II,i think point 1,2 is true for all the protocols.please confirm!
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for Transmission delay, 2KB, K shall be 1024 and NOT 1000 as its data, right?
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Assume 2 computers are connected via a network. The network uses Go-Back 7 sliding window protocol for maintaining flow control. It is observed that every 5th packet that...
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consider a network connecting two nodes A and B having a propagation delay of 6*10^-4 micro sec.bandwidth of network is 150 Mbps if each frame size is 5000 bytes and both...
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Suppose host A is sending a large file to host B over a TCP connection. The two end hosts are 10msec apart (20msec RTT) connected by a 1Gbps link. Assume that they are us...
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A geosynchronous satellite has a half-duplex channel with a transmission rate of 10 kbps and a propagation delay of 0.25 sec each way. With a data packet size of 1000 bit...
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A series of 1000 bit frames is to be transmitted across a data link 100 km in length at 20 Mbps. If the link has a velocity of propagation 2*10^8 m/s and BER is 2*10 ^-5,...
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1 answers 1 answer
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Host A is sending data to host B over a full duplex link. A and B are using the sliding window protocol for flow control. The send and receive window sizes are 4 packets...
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If k-bit maximum frame sequence numbers is available. What is the maximum window size for data transmission using the selective repeat protocol and Go Back N protocol ?
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Is there any difference between Maximum no of bits and Maximum number of sequence? or they are both same?