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Kurose and Ross Edition 6 Exercise 1 Question P28 (Page No 76)
Suppose two hosts, A and B, are separated by 20,000 kilometers and are connected by a direct link of R = 2 Mbps. Suppose the propagation speed over the link is $2.5 10^8$meters/sec. How long does it take to send the file ... the preceding one is acknowledged. How long does it take to send the file? Compare the results from (a) and (b).

ajaysoni1924 asked in Computer Networks Apr 10, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question P27 (Page No 76)
Suppose two hosts, A and B, are separated by 20,000 kilometers and are connected by a direct link of R = 1Gbps. Suppose the propagation speed over the link is $ 2.5 10^8$ ... bits that will be in the link at any given time? What is the width (in meters) of a bit in the link?

ajaysoni1924 asked in Computer Networks Apr 10, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question P26 (Page No 76)
Suppose two hosts, A and B, are separated by 20,000 kilometers and are connected by a direct link of R = 2 Mbps. Suppose the propagation speed over the link is 2.5×1082.5×108 meters/sec. suppose we can modify R. For what value of R is the width of a bit as long as the length of the link?

ajaysoni1924 asked in Computer Networks Apr 10, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question P29 (Page No 76)
Suppose there is a 10 Mbps microwave link between a geostationary satellite and its base station on Earth. Every minute the satellite takes a digital photo and sends it to the base station. Assume a propagation speed of ... the size of the photo. What is the minimum value of x for the microwave link to be continuously transmitting?

ajaysoni1924 asked in Computer Networks Apr 10, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question P25 (Page No 76)
.Suppose two hosts, A and B, are separated by 20,000 kilometers and are connected by a direct link of R = 2 Mbps. Suppose the propagation speed over the link is $2.5 \times 10^8$ meters/sec. Calculate the bandwidth-delay ... width of a bit in terms of the propagation speed s, the transmission rate R, and the length of the link m.

ajaysoni1924 asked in Computer Networks Apr 10, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question P13 (Page No 73)
Suppose N packets arrive simultaneously to a link at which no packets are currently being transmitted or queued. Each packet is of length L and the link has transmission rate R. What is the average queuing delay for the N packets? ... N such packets arrive to the link every LN/R seconds. What is the average queuing delay of a packet?

ajaysoni1924 asked in Computer Networks Apr 10, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question P12 (Page No 73)
A packet switch receives a packet and determines the outbound link to which the packet should be forwarded. When the packet arrives, one other packet is halfway done being transmitted on this outbound link and four other ... bits of the currently-being-transmitted packet have been transmitted, and n packets are already in the queue?

ajaysoni1924 asked in Computer Networks Apr 10, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question P10, P11 (Page No 73)
(Common data question P10, P11) P10. Consider a packet of length L which begins at end system A and travels over three links to a destination end system. These three links are connected by two packet switches. Let ... transmits each bit it receives before waiting for the entire packet to arrive. What is the end-to-end delay?

ajaysoni1924 asked in Computer Networks Apr 10, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question P8 (Page No 72)
Suppose users share a 3 Mbps link. Also, suppose each user requires 150 kbps when transmitting, but each user transmits only 10 percent of the time. When circuit switching is used, how many users can be supported? ... (Hint: Use the binomial distribution.) Find the probability that there are 21 or more users transmitting simultaneously.

ajaysoni1924 asked in Computer Networks Apr 10, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question P6 (Page No 72)
This elementary problem begins to explore propagation delay and transmission delay, two central concepts in data networking. Consider two hosts, A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters, ... bits, and R = 56 kbps. Find the distance mso that $d _{prop}$ equals $d _{trans}$.

ajaysoni1924 asked in Computer Networks Apr 9, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question P2 (Page No 71)
Give a formula for the end-to-end delay of sending one packet of length L over N links of transmission rate R. Generalize this formula for sending P such packets back-to-back over the N links.

ajaysoni1924 asked in Computer Networks Apr 9, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question R21 (Page No 70)
Visit the Queuing and Loss applet at the companion Web site. What is the maximum emission rate and the minimum transmission rate? With those rates, what is the traffic intensity? Run the applet with these rates and determine how ... determine again how long it takes for packet loss to occur. Are the values different? Why or why not?

ajaysoni1924 asked in Computer Networks Apr 9, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question R19 (Page No 69)
Suppose Host A wants to send a large file to Host B. The path from Host A to Host B has three links, of rates R1 = 500 kbps, R2 = 2 Mbps, and R3 = 1 Mbps. Assuming no other traffic in the network, what is the throughput for ... long will it take to transfer the file to Host B? Repeat (a) and (b), but now with R2 reduced to 100 kbps.

ajaysoni1924 asked in Computer Networks Apr 9, 2019

by ajaysoni1924

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Kurose and Ross Edition 6 Exercise 1 Question R18 (Page No 69)
How long does it take a packet of length 1,000 bytes to propagate over a link of distance 2,500 km, propagation speed 2.5 · 108 m/s, and transmission rate 2 Mbps? More generally, how long does it take a packet ... s, and transmission rate R bps? Does this delay depend on packet length? Does this delay depend on the transmission rate?

ajaysoni1924 asked in Computer Networks Apr 9, 2019

by ajaysoni1924

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Andrew S. Tanenbaum Edition 5th Exercise 5 Question 23 (Page No. 492)
Suppose that host A is connected to a router R 1, R 1 is connected to another router, R 2, and R 2 is connected to host B. Suppose that a TCP message that contains 900 bytes of data and 20 bytes of TCP header is ... 8-byte frame header, and link R2-B can support a maximum frame size of 512 bytes including a 12-byte frame header

ajaysoni1924 asked in Computer Networks Mar 16, 2019

by ajaysoni1924

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Andrew S. Tanenbaum Edition 5 Exercise 4 Question 1 (Page No. 350)
Frames arrive randomly at a 100-Mbps channel for transmission. If the channel is busy when a frame arrives, it waits its turn in a queue. Frame length is exponentially distributed with a mean of 10,000 bits/frame. For each of the ... queueing time and transmission time. (a) 90 frames/sec. (b) 900 frames/sec. (c) 9000 frames/sec.

ajaysoni1924 asked in Computer Networks Mar 15, 2019

by ajaysoni1924

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MadeEasy Full Length Test 2019: Computer Networks - Network Flow
Consider a source computer (S) transmitting a file of size $2 * 10^6$ bits to a destination computer (D) over a network of three routers ($R_1$, $R_2$ and $R_3$) and four links $(L_1, L_2, L_3 and L_4)$. $L_1$ connects $S$ ... and propagation delays in transmitting the file from $S$ to $D$? a. 1007 ms b. 1010 ms c. 2010 ms d 2007 ms

CSHuB asked in Computer Networks Jan 24, 2019

by CSHuB

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MadeEasy Full Length Test 2019: Computer Networks - Network Flow
Suppose that how A is connected to a router R1, R1 is connected to another router R2 and R2 Is connected to how B. Suppose that a TCP message that contains 900 byes of data and 20 bytes of TCP header Is passed to ... about Total length, OF MF and Fragment offset fields of the header In the last packet transmitted over the link R1-R2

jatin khachane 1 asked in Computer Networks Jan 12, 2019

by jatin khachane 1

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GATE Overflow | Mock GATE | Test 1 | Question: 40
You are working on a laptop connected to a $100 \text{Mbps}$ Ethernet LAN. You need a $2 \text{GB}$ file that is on the server in the same LAN. The entire file is also on your pen drive but you have left ... and bring the pen drive, before the transfer on the LAN completes. Assume continuous data transmission on the LAN(no packetization required)).

Ruturaj Mohanty asked in Computer Networks Dec 27, 2018

by Ruturaj Mohanty

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TestBook Test Series: Computer Networks - Network Flow

monty asked in Computer Networks Oct 17, 2018

by monty

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MIT assignment
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 bits and a loss probability p of 0.001 ,(A) what is the expected transmission time of ... parameters are the same as part (a), what is the longest channel propagation delay for which we can still use stop-and-wait?

sushmita asked in Computer Networks Oct 15, 2018

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MadeEasy Workbook: Computer Networks - Network Flow
If two stations A and B uses copper twisted pair cable having capacity 200 bits/sec. if A transmitted 20 frames to B each of size 50 bits, Assume RTT is neglected. What is the time (in Sec) required to transmit the single frame from A to B if pipelining has been used?

Sumit Singh Chauhan asked in Computer Networks Aug 6, 2018

by Sumit Singh Chauhan

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MadeEasy Workbook: Computer Networks - Network Flow
Suppose that x bits of user data are to be transmitted over K-hop path in a packet-switched network as a series of packets each containing p data bits and h header bits with x>>(p+h). The bit rate of lines is b bps and propagation delay is ... ? (p+h) x/b bits (p+h) x/pb bits p x/b bits hx/pb bits Please tell the answer with explanation.

Sid865 asked in Computer Networks Jul 5, 2018

by Sid865

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MadeEasy Workbook: Computer Networks - Network Flow
Consider an error-free 64-kbps satellite channel used to send 512-byte data frames in one direction , with very short acknowledgements coming back the other way. What is the maximum throughput for window sizes of 1,7,15 and 127? The earth-satellite propagation time is 270 msec.

Sid865 asked in Computer Networks Jul 5, 2018

by Sid865

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MadeEasy Test Series 2018: Computer Networks - Network Flow
my approach is 1 <= Td(x)/(Td+2Tp), x is size of SW then the answer wil be - ceil(log x) Is my approach is correct, if not then how to solve this?

charul asked in Computer Networks Jan 13, 2018

by charul

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2 votes

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MadeEasy Test Series: Computer Networks - Network Flow

MIRIYALA JEEVAN KUMA asked in Computer Networks Jan 2, 2018

by MIRIYALA JEEVAN KUMA

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FLOW CONTROL CN

Parshu gate asked in Computer Networks Nov 6, 2017

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Recent questions tagged network-flow