Answer to Question #202404 in Software Engineering for Muhammad

Question

1. Show the contents of the output frames for a synchronous TDM multiplexer that combines three sources sending the following characters. Note that the characters are sent in the same order that they are typed. Multiplexing unit is 2 characters.

a. Source 1 message:MUHAMMAD

b. Source 2 message: DHAKA

c. Source 3 message:NABINAGAR

2. Assume the message to be sent comprises 120 octets. Each packet contains 4 octets of control information. These packets are first transmitted from X to a then to b then to c and to Y. Ignoring switching time, calculate the total transmission time for 6-packet message and 10-packet message. Which of the case will be better for this transmission.

3. Five equal-size datagrams belonging to the same message leave for the destination one after another. However, they travel through different paths as shown in following table:

Datagram Visited Switches

1 1,3,5

2 1,2,5

3 1,2,3,5

4 1,4,5

5 1,4,3,5

Draw the whole transmission scenario of this switching network. 

Answer 1

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