Download JNTUH MCA 1st Year R20 2022 May 871AD Operating Systems Question Paper

FirstRanker.com
Firstranker's choice
Code No: 871AD R20

--- Content provided by‍ FirstRanker.com ---

MCA I Semester Examinations, May - 2022
OPERATING SYSTEMS
Time: 3 Hours Max.Marks:75

1. a) Write in detail on parallel and distributed operating systems.
   

   --- Content provided by FirstRanker.com ---

   b) Explain objectives and functions of OS. [8+7]
2. Explain about Multiprogrammed and Time-shared operating system.
   Explain about various system components. [8+7]
3. What is CPU scheduling? Compare pre-emptive and non-preemptive scheduling methods.
   Explain two pre-emptive scheduling algorithms with suitable examples each. [8+7]

--- Content provided by‍ FirstRanker.com ---

4. Explain about fork, exit, wait, waitpid and exec system calls. [15]
5. What do you mean by Monitors? How it is used solve the Dining-Philosophers Solution
   Using Monitors? [15]
6. What is dead lock? Explain about the dead lock detection.
   Explain the procedure for recovering from the deadlock. [8+7]

--- Content provided by FirstRanker.com ---

7. Consider the following page reference string 1,2,3,4,2,1,5,6,2,1,2,3,7,6,3,2,1,2,3,6 how
   many page faults would occur for the following replacement algorithm assuming three,
   and four frames ?
   a) FIFO replacement b) Optimal replacement. [8+7]
8. Explain various approaches for free space management.
   

   --- Content provided by​ FirstRanker.com ---

   Write briefly on open, create, read, and write, close file operations system calls. [5+10]

--00000---

FirstRanker.com