Answered: A client sends a 100-byte request…

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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A client sends a 100-byte request message to a service, which produces a response containing 5000 bytes. Estimate the total time to complete the request in each of the following cases, with the performance assumptions listed below:
Latency per packet (local or remote, incurred on both send and receive):5 ms
Connection setup time (TCP only):5 ms
Data transfer rate:10 Mbps
MTU:1000 bytes
Server request processing time:2 ms
Estimate inter-process data transfer rate at 40 Mbps
Assume that the network is lightly loaded.
i. Using connectionless (datagram) communication (for example, UDP);

ii. Using connection-oriented communication (for example, TCP);

iii. The server process is in the same machine as the client.

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