Data Communications and Networking

[bob makasha]

1. Suppose an application sends messages of 100 bytes 90% of the time and messages of 900 bytes 10% of the time. The transport, network and datalink layer add header/tails of 20, 20 and 18 bytes (TCP, IP, Ethernet) respectively. What is the maximum percentage of actual application data that this application could achieve across any network?


2. Suppose a 2 MB file is transmitted over a 4km fiber link, propagation speed of 2 * 108 m/sec., at 100 Mbps. How long does it take from the first bit sent until the last bit to arrive at its destination?

 

[Tallmukide]

1. Suppose an application sends messages of 100 bytes 90% of the time and messages of 900 bytes 10% of the time. The transport, network and datalink layer add header/tails of 20, 20 and 18 bytes (TCP, IP, Ethernet) respectively. What is the maximum percentage of actual application data that this application could achieve across any network?


2. Suppose a 2 MB file is transmitted over a 4km fiber link, propagation speed of 2 * 108 m/sec., at 100 Mbps. How long does it take from the first bit sent until the last bit to arrive at its destination?

1. Suppose an application sends messages of 100 bytes 90% of the time and messages of 900 bytes 10% of the time. The transport, network and datalink layer add header/tails of 20, 20 and 18 bytes (TCP, IP, Ethernet) respectively. What is the maximum percentage of actual application data that this application could achieve across any network?


2. Suppose a 2 MB file is transmitted over a 4km fiber link, propagation speed of 2 * 108 m/sec., at 100 Mbps. How long does it take from the first bit sent until the last bit to arrive at its destination?

please any help from these questions???

 

[Upepo wa Pesa]

please any help from these questions???

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