CN_practicals

Guidlines:

1. Simulate Cyclic Redundancy Check (CRC) error detection algorithm for noisy channel.
2. Simulate Hamming code for a given input message.
3. Simulate and implement stop and wait protocol for noisy channel.
4. Simulate and implement go back n sliding window protocol.
5. Simulate and implement selective repeat sliding window protocol.
6. Simulate Classful Addressing by taking the IP address (Dotted-Decimal notation) as input and print the corresponding class.