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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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Pls do fast within 5 minutes and i will give like for sure Solution must be in typed form Question 1 Suppose Host A wants to send a file of size F = 1500 bytes to Host B. The path from Host A to Host B has three links having rates R1 =500 kbps, R2 = 1 kbps, and R3 = 2 Mbps, respectively. Assume there is no other traffic on this network. Assume negligible processing delays. Assume the packets have a size of L = 520 bytes (20 bytes are for header - carry no data from the file - 500 bytes for payload). Assume no other traffic in the network and negligible propagation delay. Answer the following questions: 500bytes = 4.16kb a) What is the end-to-end delay from the time Host A starts transmitting the third packet to the time when the file is completely received at Host B? When answering this question, assume a propagation delay of 100 msec in the first link, 300 msec in the second link, and 200 msec in the third link. Motivate your calculation.

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