Q1. Describe in detail the circuit and message switching.
Q2. Describe shortest path algorithm and by using this algorithm find out the shorted path from A to D.
![1281_shortest path algo.jpg](https://secure.tutorsglobe.com/CMSImages/1281_shortest%20path%20algo.jpg)
Q3. Illustrate the Characteristics or features of the Queue System and describe M/M/1 Queue model.
Q4. Describe the working of the User Datagram Protocol.
Q5. In brief describe the HDLC Protocol.
Q6. With a neat diagram describe the IPv4 header format.
Q7. Describe the working of the DES algorithm.
Q8. Describe Unicast, Multicast and Broadcast addressing in the computer network.