• Attempt any five questions.
• All questions carry equal marks.
Explain the ISO-OSI model of computer network with a neat diagram.
Explain the Finite state machine models and Petri Net models.
With a neat diagram explain in detail about the Network architecture.
Explain Data Link address with examples.
Explain connection establishment and connection release in transport protocols.
A channel has a bit rate of 4 kbps and propagation delay of 20 msec. For what range of frame size does stop and wait protocol gives an efficiency of at least 50%?
Explain the various error detection and correction mechanisms used in computer network.
Describe sliding window protocol using Go back n.
What is Congestion control and how it is implemented in network layer?
Explain MAC sub layer protocol and frame structure of IEEE 802.11.
Compare IPv4 and IPv6.
Explain Least cost routing algorithm. Discuss its limitations.
Discuss the concept of TCP flow control and TCP congestion control.
Explain transport layer multiplexing and demultiplexing.
Write short notes: (i) IMAP (ii) UDP (iii) DNS (iv) MIME.
