PTU PGDCA 2020 March Previous Question Papers
Total No. of Questions : 09
PGDCA (2018 Batch) (Sem.-1)
COMPUTER OPERATING SYSTEM
Subject Code : PDCA-103
Time : 3 Hrs. Max. Marks : 60
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Roll No. ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ Total No. of Pages : 02Total No. of Questions : 09
PGDCA (2018 Batch) (Sem.-1)
COMPUTER OPERATING SYSTEM
Subject Code : PDCA-103
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M.Code : 50503Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
- SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
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SECTION-A
- Answer briefly :
- What is kernel of an Operating System?
- Name different states of a process.
- Discuss briefly First Come First Serve.
- Define Deadlock.
- Enlist the two types of memory management techniques.
- Differentiate paging and segmentation.
- Comment on the phrase “Locality of Reference”.
- Why is File Management important?
- How DMA is related to device management?
- Demonstrate the concept of password authentication briefly.
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Firstranker's choiceSECTION-B
- Explain the Boot process of Operating system.
- What is meant by process scheduling? Explain Shortest Job First.
- Discuss any deadlock avoidance algorithm by taking suitable example.
- What is inverted page table? Explain the segmented paging technique.
- What are program threats? Explain the process of identification and prevention from threats.
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SECTION-C
- a) What is memory mapped I/O? How is it different from polled I/O? Explain.
b) What is software organization? Differentiate buffering and caching. - What is meant by inter-process communication? Explain any algorithm for process synchronization.
- What is directory structure? Explain different functions of file system.
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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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