Download JNTUH MCA 3rd Sem R17 2021 July-August 843AC Operating Systems Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R17 2021 July-August 843AC Operating Systems Previous Question Paper


R17

Code No: 843AC















JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

2021 MCA III Semester Examinations, July/August - 2021

OPERATING SYSTEMS

Time: 3 Hours













Max.Marks:75

Answer any five questions

All questions carry equal marks

- - -


1.a)

What are the challenges in designing a distributed operating system?

b)

Explain the various functions of an operating system.







[8+7]


2.a)

What is system call? Explain the various types of system calls and its purpose.

b)

What are time shared and real time systems? Explain them in detail.



[8+7]


3.a)

Explain exec system call with examples.

b)

What is Deadlock? Explain about Deadlock Avoidance.







[8+7]


4.a)

Explain the concept of Binary semaphores in detail.

b)

What is a race condition? Describe how monitors are to solve synchronization
problem.



















[7+8]


5.

Explain about Inter Process Communication using FIFOs in detail with examples. [15]





6.a) Explain various LRU-Approximation page replacement algorithms.
b)

Draw a neat diagram showing address translation scheme in paging with TLB.

[8+7]


7.a)

With a neat diagram explain about Unix File system.

b) Explain briefly about file protection.











[8+7]


8.

Discuss various file allocation strategies. Discuss the merits and demerits of various file
allocation strategies.















[15]



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This post was last modified on 17 March 2023