Q1. Distinguish between the Message switching, Packet switching and the Circuit switching.
Q2. Illustrate the various types of networking or internetworking devices? Describe them.
Q3. An analog signal consists of a bit rate of 8000 bps and a baud rate of 1000 baud. Determine the number of data elements which are carried by each signal element? Determine the number of signal elements do we require?
Q4. Draw a fundamental block diagram of ARQ and describe the Selective Repeat ARQ method.
Q5. A pure ALOHA network transmits 200-bit frames on a shared channel of 200 kbps. Illustrate the throughput if the system (all stations altogether) produces:
a) 1000 frames per second
b) 500 frames per second
c) 250 frames per second
In which case percentagewise maximum throughput would be accomplished.
Q6. Differentiate between the given:
a) Static and dynamic routing.
b) Centralized and distributed routing.