Answer the following questions: 1. Define Optimality Principle for routing. 2. Define cumulative Acknowledgement. 3. Differentiate Intra-cell and Inter-cell transmission. 4. Write the meaning of Delayed Duplicates. 5. Define Scatternet. 6. Write main technical difference between Hub and Switch. 7. What is a composite signal?
[7 marks]Answer the Following Questions: 1. Give one advantage and disadvantage of layering 2. Write two main duties of Network Layer and Physical Layer. 3. Compare Data Link Layer with Transport Layer.
[3 marks]How error handling is done at Data Link Layer? Explain any one Error Correcting Algorithm in detail. Take an example of a sender who wants to send a message 1011101, but there is an error during transmission and the 2nd bit changes to 1. How the receiver will correct the data?
[7 marks]Assume that the given subnet is a wireless network where a node ‘A’ wants to communicate to node ‘G’. How Routing will take place using Adhoc On- demand Distance Vector Algorithm? Show at least one route request packet entry. OR1
[7 marks]Consider the following network and explain the distance vector routing algorithm with routing tables of each router. Discuss the route selected by node ‘A’ to send a packet to node ‘G’.
[7 marks]Write a short note on
[ marks]Radio Waves. (ii) ISM Bands
[3 marks](i) Define Network and write applications of Computer Networks. (ii) What is the difference between Connection Oriented and Connectionless communication?
[4 marks](i) Write a short note on Wireless Communication using Satellite (ii) Explain the role of Access Point in Wireless System
[3 marks](i) Differentiate Half Duplex and Full Duplex Communication channel. (ii) Explain Working of Aloha and Slotted Aloha
[5 marks](i) Explain with example the Hidden Station and Exposed Station problems. (ii) Write three main differences between 802.11 and 802.16
[3 marks](i) What is Flooding? Compare it with Forwarding. (ii) Explain use of Sequence Number and Age fields in Link State Packets.
[3 marks](i) When the Binary Exponential Back-off Algorithm is used? How it works? (ii) Explain CSMA/CD principle with different sensing variants.
[3 marks]What is Sliding Window Protocol? Compare sending and receiving window size for Selective Repeat and Go-Back-Nprotocols. Also compare the working of these protocols for bidirectional communication.
[7 marks]What is DNS? How it Works? Explain advantages of Hierarchical Namespace.
[7 marks](i) What is RTT? How it is calculated at Transport Layer? (ii) Explain TCP Sequence Number
[3 marks]Explain Persistent Connection with HTTP 1.1. Differentiate between Get and Post methods used with Http. What is the difference between Cookies and Session Variables?
[7 marks]Explain the Connection Establishment and Connection Release Process handled at Transport Layer.
[7 marks]