Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- What is the total time required to send a 50 GB file from Host A to Host B over the below TCP/IP network using Ethernet?
Speed of light constants:
vacuum : 3.0 * 10^8 m/s
copper : 2.3 * 10^8 m/s
optical: 2.0 * 10^8 m/s
Transcribed Image Text:A
The links have the following distance and bandwidth
Link 1.
Link 2.
Link 3.
Link 4.
Each switch is a store-and-forward switch that introduces the following delays between packets
-
Switch 1 introduces a 60 µs delay between packets
Switch 2 introduces a 50 µs delay between packets
Switch 3 introduces a 70 us delay between packets
A 2 RTT handshake is needed before data can be transmitted
Your answer should be shown in seconds and be accurate to one tenth of a microsecond
Link 1
80 m copper
An 80 m copper link has a 100 Mbps bandwidth
A 2,800 km fiber link has a 20 Gbps bandwidth
A 3,500 km fiber link as a 120 Gbps bandwidth
A 30m copper link has a 80 Mbps bandwidth
Switch 1
Link 2
2,800 km fiber
Switch 2
Link 3
3,500 km fiber
Switch 3
Link 4
30 m coppe
B
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