problem 1) For n devices in a network, what is the number of cable links required for mesh, ring and star topology.

problem 2) Distinguish between circuit switching, packet switching and Message Switching.

problem 3) Distinguish between hubs, switches and bridges.

problem 4) describe in detail about FDDI.

problem 5) Given a lP address of 193.215.45.198 and a subnet mask of 255.255.255.240. What is the Network number? What is the broadcast address? How many hosts addresses?

problem 6) Describe the OSI reference model in detail.

problem 7) describe the following:

(a) Stop and wait protocol.

(b) Sliding window protocol with go back n.

problem 8) Describe with an ex how Hamming code can be used to correct single bit errors. How the Hamming code can be used for burst error correction?