1. Sketch the ISO-OSI reference model and describe the functionalities of each layer in detail.
2. Compare the OSI reference model with TCP reference model. Describe how the layers can be grouped?
3. Describe the various kinds of multiplexing.
4. Describe the following error detecting / correcting mechanisms:
i. Parity bit
ii. Check sum
iii. Cyclic Redundancy check
iv. Hamming code
5. Describe about different link level flow control.
6. Describe different multiple access techniques.
7. Describe the use of TTL packet in IP header in detail.