1. Explain the difference between analog data and digital data. Give examples of each  type.

2. Describe the process of analog-to-digital conversion. What are the key steps involved?

3. Discuss the concept of multiplexing in network communication. How does it help  optimize the use of network resources?

4. Define line coding and block coding in the context of digital data transmission Giveexamples of each coding scheme.

5. Discuss about the transmission impairment in computer networks.