Principle of Operating System : Mid Semester Examination ( 3rd Sem )

Principle of Operating System

Mid Semester Examination, 2021-22
B. Tech - Semester : 3
Time : 1.30 hrs. - Max. Marks : 40

Instructions:

1. All questions are Compulsory
2. Assume missing data suitably, if any.

Section : A ( 2 x 2 = 4 Marks )

All questions are compulsory

1. Define the essential properties of the time-sharing operating systems.
2. Discuss the use of process control block in CPU switching in-between processes.

Section : B ( 4 x 2 = 8 Marks )

All questions are compulsory

1. Distinguish between client-server and peer-to-peer models of distributed systems.
2. Show the interactions between the different process states. Explain using the proper diagram.

Section : C ( 6 x 2 = 12 Marks )

All questions are compulsory

1. Difference between the following :
   a. Network Operating system and Distributed operating system.
   b. Real time operating system and Time sharing operating system.
   c. Batch operating system and Real time operating system.
   
   OR
   What is a system call ? How it is handled by an OS ? Discuss it with the help of a diagram.
2. What are parallel systems ? Also discuss symmetric and asymmetric multiprocessing.
   
   OR
   Discus s how OS have evolved over the years.

Section : D ( 8 x 2 = 16 Marks )

All questions are compulsory

1. Discuss in details various operating systems like Unix, Linux, Windows etc.
   
   OR
   Discuss Parallel systems and Distributed systems.
2. Explain Reader-writers problem and provide a semaphore solution using semaphores for reads priority problems.
   
   OR
   Explain the range of monitors with a schematic view of its structure; write a monitor solution to the bounded-buffer problem.

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