Question 1

a) Give three advantages of parallel system

b) Explain what is "symmetric multiprocessing" and "asymmetric multiprocessing" in parallel system.

c) Name any three types of hardware protection and explain each briefly.

d) Describe what is "polling" in the interrupt handling.

Question 2

a) The OS is responsible for several activities in connection with memory management. Describe three of such activities.

b) Describe three additional Operating System functions which ensure efficient system operations instead of helping the user.

c) In different communications models, communication may take place using either "message passing" or "shared memory". Distinguish between "message passing" and "shared memory", illustrating your answer with a diagram

d) Give three advantages of virtual machine