Download PTU (I.K.Gujral Punjab Technical University (IKGPTU)) B-Tech (Bachelor of Technology) (CSE-IT)- Computer Science Engineering -Information Technology 2020 December 4th Sem 56604 Operating Systems Previous Question Paper
Roll No.
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech.(CSE)/(IT) (2012 to 2017) (Sem.?4)
OPERATING SYSTEMS
Subject Code : BTCS-401
M.Code : 56604
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 F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Write briefly :
1.
Explain the need of an Operating System.
2.
Explain the term PCB in brief.
3.
Define the term deadlock with an example.
4.
Define the term thrashing. What is the cause of thrashing? Explain.
5.
Differentiate between Paging and Segmentation scheme of Memory Management.
6.
What is meant by Disk Scheduling? Why Disk Scheduling is necessary?
7.
What is the need of I/O traffic controller? Discuss.
8.
Explain in brief about the Physical File system.
9.
Differentiate between Protection and Security.
10. Write two advantages of Windows based Operating System.
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SECTION-B
11. Explain in brief about the functions of Kernel and shell.
12. Write a detailed note on Process Synchronization.
13. Write a brief note on Segmentation scheme of memory management.
14. Write a brief note on Logical File System.
15. Write a brief note on Windows based Operating Systems.
SECTION-C
16. Write a detailed note on operating system structures.
17. a) Explain in detail about device management policies.
b) Write a detailed note on I/O system in reference to device management.
18. a) Write a brief note on Layered Architecture in relation to file management
b) Explain in detail the following CPU scheduling algorithms :
(i) Shortest Job First
(ii) Multilevel feedback Queue scheduling
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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This post was last modified on 13 February 2021