Question

Critically analyse the role of flow and error control in a computer network. In your explanation appropriate figures and examples are expected. [6 Marks]

b. Calculate the CRC for the X binary data shown as shown below, when the divisor is 1101. (A)2 = (200 + X)10 X = 1001100 [6 Marks]

c. Consider a scenario where a frame would be sent after appending the checksum to the original data. How would you prove that the frame received is error free? [

Answer 1

As per HomeworkLib guidelines we are supposed to answer the first two questions if there are more than two

The main difference between the flow control and error control is that the flow control observes the proper flow of the data from sender to receiver, the error control observes that the data delivered to the receiver is error free and reliable.

. 100 lloc divided Binary form by No1 3 6 X x 3 tr t divided form ( Added Zeros ) .. 1001100000 Binary 1101 by LIII101 100 lloc A101 100100 Ilot ililo Result is 1000 DOO ९ is oo 1101 Remainder ro10000 1101 Ili000 1 101 01100 0000 1100 (101 001