Download SGBAU BCA 2019 Summer 2nd Sem Operating System Question Paper

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B.C.A. (Part—I) Semester—II Examination

2ST1 : OPERATING SYSTEM

Time : Three Hours] [Maximum Marks : 60

Note :— (1) All questions are compulsory.

(2) All questions carry equal marks.

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(3) Use suitable data wherever necessary.

1. (a) What is Software ? Explain different types of utility softwares. (6)
   (b) Explain Unix shell applications. (6)
   OR
2. (a) What is Operating System ? Explain types of operating system. (6)
   

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   (b) Explain:
   (i) Multitasking
   (ii) Multiprogramming. (6)
3. (a) Explain the structure of File Allocation Table (FAT). (6)
   (b) Explain with example :
   

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   (i) ATTRIB
   (ii) Config.sys.
   (iii) FORMAT. (6)
   OR
4. (a) Explain Booting Process. Also explain its types. (6)
   

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   (b) Explain the directory structure of DOS. (6)
5. (a) Explain Process Control Block (PCB). (6)
   (b) Explain :
   (i) Time slicing
   (ii) Batch processing system. (6)
   

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   OR
6. (a) Explain process scheduling. Explain priority scheduling in brief. (6)
   (b) Explain:
   (i) Suspend and Resume
   (ii) Throughput
   

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   (iii) Waiting Time. (6)

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7. (a) Explain different space allocation techniques. (6)
   OR
8. (a) Explain contiguous allocation with example. (6)
   

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   (b) What are the basic operations performed on a file ? Explain. (6)
9. (a) What is segmentation ? Explain. (6)
   (b) Explain page replacement algorithm. (6)
   OR
10. (a) Explain virtual memory management. (6)
    

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    (b) Explain demand paging in detail. (6)

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