Download PTU BCA 2020 Dec 4th Sem 10068 Operating Systems Question Paper

Download PTU BCA ( Bachelor of Computer Applications) 2020 December 4th Sem 10068 Operating Systems Previous Question Paper

Roll No.
Total No. of Pages : 02
Total No. of Questions : 16
BCA (2014 to 2018) (Sem.?4)
OPERATING SYSTEMS
Subject Code : BSBC-403
M.Code : 10068
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains SIX q uestions ca rryin g TEN mark s each a nd stu dents hav e
to attempt any FOUR questions .
SECTION-A
Write briefly :
1.
Differentiate between application programs and system programs.
2.
What are Threads? What are its applications?
3.
What is Context Switching?
4.
What is CPU - I/O Burst Cycle?
5.
What is the difference between FIFO and Socket?
6.
Write two major advantages of Round Robin Scheduling.
7.
What is Demand Paging?
8.
Briefly discuss any one page replacement algorithm.
9.
What are the objectives of file management?
10. What is a Firewall? What is its purpose?
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SECTION-B
11. Define Operating system. Why an operating system is called a resource - manager? What
are various types of operating systems? Which one you feel is better and why?
12. Define a Process. How it is different from a program? What is the relation between a
process and a program? Explain various processes states.
13. Define Thrashing. What are the reasons of thrashing and what are the solutions of
handling thrashing?
14. What is segmentation technique of memory management and discuss how it
implemented? Also differentiate between paged segmentation and segmentation with
paging.
15. Discuss in detail the various disk scheduling algorithms.
16. Discuss in detail the various directory structures.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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