The figure below is a Wireshark capture of a TCP three-way handshakestarting an http session. Calculate the initial SampleRTT from thiscapture, knowing that the Time column (2nd on the left) is in seconds.1 0.0000002 0.0406173 0.040650TCP66 53587 > httpp [SYN] Seq=0 win=8192 L66 http > 53587 [SYN, ACK] Seq=0 Ack=154 53587 > http [ACK] Seq=1 Ack=1 win=TCPTCPSubsequent SampleRTTs are 30 ms, 40 ms, 100 ms, and 50 ms .Consider a = 0.125 and B = 0.25.The initial EstimatedRTT = initial Sample RTT. The initial DevRTT=(Initial Sample RTT)/2.What are the EstimatedRTT, DevRTT, and Timeout (RTO) calculatedafter the last SampleRTT?O Estimated RTT = 48.6 ms, DevRTT = 11.7 ms, Timeout (RTO ) = 95.5 msEstimated RTT = 47.0 ms, DevRTT = 18.2 ms, Timeout (RTO) = 119.7 msO Estimated RTT = 60.0 ms, DevRTT = 20.1 ms , Timeout (RTO) = 80.4 msEstimated RTT = 28.1 ms, DevRTT = 29.6 ms, Timeout (RTO) = 146.7 ms

The figure below is a Wireshark capture of a TCP three-way handshake starting an http session. Calculate the initial SampleRTT from this capture, knowing that the Time column (2nd on the left) is in seconds.

The figure below is a Wireshark capture of a TCP three-way handshake starting an http session. Calculate the initial SampleRTT from this capture, knowing that the Time column (2nd on the left) is in seconds.

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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Concept explainers

Types Of Protocols

A network protocol is a collection of rules that governs the exchange of data between devices connected to the same network. In other words, network protocols are rules that specify how devices communicate or transfer data over a network. The sender and receiver systems must obey the standards to facilitate communication between them.

Question

The figure below is a Wireshark capture of a TCP three-way handshake
starting an http session. Calculate the initial SampleRTT from this
capture, knowing that the Time column (2nd on the left) is in seconds.
1 0.000000
2 0.040617
3 0.040650
TCP
66 53587 > httpp [SYN] Seq=0 win=8192 L
66 http > 53587 [SYN, ACK] Seq=0 Ack=1
54 53587 > http [ACK] Seq=1 Ack=1 win=
TCP
TCP
Subsequent SampleRTTs are 30 ms, 40 ms, 100 ms, and 50 ms .
Consider a = 0.125 and B = 0.25.
The initial EstimatedRTT = initial Sample RTT. The initial DevRTT=
(Initial Sample RTT)/2.
What are the EstimatedRTT, DevRTT, and Timeout (RTO) calculated
after the last SampleRTT?
O Estimated RTT = 48.6 ms, DevRTT = 11.7 ms, Timeout (RTO ) = 95.5 ms
Estimated RTT = 47.0 ms, DevRTT = 18.2 ms, Timeout (RTO) = 119.7 ms
O Estimated RTT = 60.0 ms, DevRTT = 20.1 ms , Timeout (RTO) = 80.4 ms
Estimated RTT = 28.1 ms, DevRTT = 29.6 ms, Timeout (RTO) = 146.7 ms

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