1. What do you mean by Transmission medium?
2. Define Guided Media and Unguided media.
3. What do you mean by Line coding?
4. What is the relationship between data element and signal element?
5. Describe data rate and signal rate.
6. describe Bandwidth and what are the line coding scheme available?
7. How does NRZ – L differ from NRZ – I?
8. What do you mean Modem. prepare down the standards available in modem.
9. describe the mode for propagating light along optical channels.
10. What is the difference between a passive and an active hub?
11. What are the three criteria essential for effective and efficient networks?
12. describe the seven layers of OSI Model in detail.