TCP congestion control mechanisms consist of three operating states: Slow Start, CongestionAvoidance, and Fast Recovery. Assume that the figure shows the behavior of TCP Reno whichimplements Fast Recovery. (In the figure, transmission round 1 refers to the interval that startswith the point where the horizontal axis equals 1 and ends with the point where the horizontalaxis equals 2.) Answer the following questions.45403530252015105-0+0 2 46 8 10 12 14 16 18 20 22 24 26Transmission roundCongestion window size (segments) (e) At the beginning of transmission round 1, what's the value of cwnd?(f) At the beginning of transmission round 4, what's the value of cwnd?(g) During transmission round 10, what's the value of ssthresh?(h) During transmission round 25, what's the value of ssthresh?

A) At the beginning of round 1,the value of cwnd(congestion window size) is 1 F) At the…

Answered: Avoidance, and Fast Recovery. Assume…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Consider a swapping system in which memory consists of the following hole sizes inmemory order: 12 MB, 4 MB, 20 MB, 12 MB,18 MB, 7 MB, 9 MB and 12 MB.Which hole is taken for successive segment requests of(a) 10MB(b) 15MB(c) 9 MBfor first fit, worst fit, and next fit?
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Consider a program that generates the following set of page references: AC BDBAEFBFAGEFAAFBACGF Assuming that the program is given 4 page frames, how many page faults are generated using the following page replacement algorithms: a) FIFO b) LRU c) OPT Show the contents of the 4 page frames after every access and indicate when page faults occur. Assume all frames are empty at the beginning of the sequence. For example, the first page access (to page A) will cause a page fault, since no pages are loaded into the frames. Page A will be loaded into the first frame. This indicated as below.
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Assume the following parameters for Selective Repeat (SR): a) N = 4 b) Round Trip Time (RTT) = 10 ms c) Timeout period = 40 ms d) Segment Size = 2200 bytes. Suppose that Bob sent 14 segments, numbered 1 to 14, to Alice using the SR mechanism. Suppose that Segment 4 and Segment 10 were lost the first time the segments were sent to Alice (but reached Alice correctly when retransmitted). Apart from the above, there were no other segment losses. What is the average throughput obtained in sending all the segments (in bytes/sec)? Draw a diagram to show the communication of the segments in detail.
Question is in the image, Give a detailed explanation for the answer
What is the tmiss time for the following set up: Block size = 32, time for address = 20 cycles, time for data transfer = 5 cc. tmiss will be found in the following ways. a) no optimization b) K= 4, M=2 c) K=4, M=4
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