SHARE
SPREAD
HELP

The Tradition of Sharing

Help your friends and juniors by posting answers to the questions that you know. Also post questions that are not available.

To start with, Sr2Jr’s first step is to reduce the expenses related to education. To achieve this goal Sr2Jr organized the textbook’s question and answers. Sr2Jr is community based and need your support to fill the question and answers. The question and answers posted will be available free of cost to all.

Sharing the knowledge gained, is a generous way to change our world for the better. -Sr2Jr

 

#
Authors:
Linda Null ,julia Lobur
Chapter:
Network Organization And Architecture
Exercise:
Exercises
Question:20 | ISBN:9780763704445 | Edition: 3

Question

20. How big is a physical PDU? The answer to this question determines the number of simultaneous transmissions for many network architectures.

If a signal propagates through copper wire at the rate of 2 × 10^8 meters per second, then on a carrier running at 10Mbps the length of each bit pulse is given by:

If a data frame is 512 bits long, then the entire frame occupies:

(Length of one bit) × (Frame size) = 20×512 = 10,240 meters.

a) How big is a 1024-bit packet if the network runs at 100Mbps?

b) How big is it if the network speed is increased to 155Mbps?

c) At 100Mbps, how much time elapses as one of these frames passes a particular point in the network?

TextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbookTextbook

Sorry the answer is not available at the moment…

If you are able to find the answer, please make sure to post it here. So that your Juniors have smile on their lips and feel happy.

Spread the 'tradition of sharing'.