Q1. Illustrate the different layers of OSI model. As well describe in detail the different functions performed by the given layers:
a) Data link layer
b) Network layer
Q2. Describe various digital modulation methods used in the computer network.
Q3. State and describe the Shannon channel capacity theorem for the noisy channel.
Q4. In brief describe the CSMA-CD protocol.
Q5. Describe the working of stop and wait and selective repeat of the ARQ protocols.
Q6. prepare down the comparisons between the Virtual circuit and datagram.
Q7. Describe in detail various multiple accessing methods used in the computer networks.
Q8. With neat diagram, describe the working of 802.3 protocols.
Q9. Assume that the ALOHA protocol is employed to share a 56 kbps satellite channel. Assume that the packets are 1000 bits long. Find out the maximum throughput of the system in packets per second.