VTU Computer Science (Semester 6)
Computer Networks 2
December 2015
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Differentiate between connection oriented and connectionless services.
4 M
1 (b) Define routing and its goals.
6 M
1 (c) Explain Dijkstra's algorithm. Consider the network given below in Fig. 1(c). Use the Dijkstra's algorithm to find shortest paths from node 4 to other nodes.

10 M

2 (a) Explain the FIFO and priority queue scheduling for managing traffic at flow level.
10 M
2 (b) Define congestion control with graph. Explain the leaky bucket algorithm for policing the traffic at flow level.
10 M

3 (a) Explain the IP address classification. Identify the following IP address to which class they belong to:
i) 2200.58.20.165
ii) 128.167.23.20
iii) 16.196.128.50
iv) 150.156.10.10
7 M
3 (b) A host in an organization has an IP address 150.32.64.34 and subnet mask 255.255.240.0. What is the address of this subnet?
6 M
3 (c) Give the format of IPv6 basic header. Compare IPv6 with Ipv4.
7 M

Write short notes on:
4 (a) (i) IGMP protocol
5 M
4 (a) (ii) Mobile IP
5 M
4 (b) Explain the three way handshake for establishing a TCP connection.
6 M
4 (c) Write a short note on routing information protocol.
4 M

5 (a) Explain the routing table poisoning and denial-of-service attacks.
8 M
5 (b) Define network management and explain SNMP and SNMP message.
8 M
5 (c) Differentiate between DES and RSA.
4 M

6 (a) Define MPLS. Explain its operation.
6 M
6 (b) Explain the classification of resource allocation schemes.
6 M
6 (c) With a neat diagram, explain the differentiated services QoS.
8 M

7 (a) Briefly explain MPEG standards and frame types for compression.
6 M
7 (b) With a neat diagram, explain the H:323 components and list the steps in signaling.
6 M
7 (c) Explain session initiation protocol (SIP) in detail.
8 M

8 (a) (i) Zigbee technology.
4 M
8 (a) (ii) Clustering in sensor networks.
4 M
8 (b) Briefly explain the direct and multihop routing of intra-cluster routing protocol, with the help of relevant diagrams.
6 M
8 (c) Explain sensor node structure with relevant figure.
6 M



More question papers from Computer Networks 2
SPONSORED ADVERTISEMENTS