Ahyoung Lee
CS 6027 – Advanced Computer Networking
Fall 2023
Class Exercise
Monday, 08-28-2023
Max: 100 points
Name:____Estevao Bittencourt___
Student ID:___000943456___
We assume that the Web page consists of the following:
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1 base HTML-file (of size L=8000 bits)
4 images (each of size L=10000 bits)
The transmission rate of the link is R=100 Mbps
each RTT = 1 sec
(a) Approximately how long does it take for the page (including images) to
appear on the user’s screen in non-persistent HTTP protocol?
Total RTT: 5 * 2 = 10
Transferring over link: 48000 / 108 = 4.8 * 10-4
Non-persistent HTTP is 2RTT + File size = 2 * 1 + 0.00048 = 2.00048 seconds
(b) Approximately how long does it take for the page (including images) to
appear on the user’s screen in persistent HTTP protocol?
Total bits: 8000 + 10000 + 10000 + 10000 + 10000 = 48000
Transferring over link: 48000 / 108 = 4.8 * 10-4
Persistent HTTP is 1RTT + File size = 1 + 0.00048 = 1.00048 seconds
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