Gujarat Technological UniversityWinter 2025 examination

GTU 3140702 Operating System (OS) Winter 2025 Question Paper & PDF

B.E. · Computer Engineering · Semester 4 · Subject code 3140702
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 2:30 PM – 5:00 PM
Questions
5 with internal choice
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13 of 25 questions on this paper were also asked in other years. Each is marked below with the years it appeared.See all 27 repeated 3140702 questions, most asked first

Q.1

14 Marks
(a)
3 marks
Explain the uses of Operating system.
(b)
4 marks
Explain multiprogramming and multiprocessing operating system.
(c)
7 marks
What is process? Explain process state transition diagram.

Q.2

14 Marks
(a)
3 marksAsked in 2 of 6 papers
What is thread? Explain user level and kernel level thread.

Also asked in Summer 2026 Q3b OR

(b)
4 marks
What is critical section? Explain race condition with example.
(c)
7 marksAsked in 4 of 6 papers

What is Semaphore? Solve dinning philosopher problem using semaphore.

Also asked in Winter 2024 Q3c OR, Winter 2023 Q3c OR, Summer 2023 Q3c OR

(c)
7 marksAsked in 4 of 6 papers

What is Binary Semaphore? Solve Reader and Writer problem using semaphore.

Also asked in Summer 2026 Q4c, Summer 2025 Q2c, Summer 2023 Q3c

Q.3

14 Marks
(a)
3 marksAsked in 3 of 6 papers

Differentiate between preemptive and non preemptive scheduling algorithm.

Also asked in Summer 2026 Q3a OR, Winter 2024 Q3a

(b)
4 marks
Explain Principles of Concurrency with example.
(c)
7 marks
Explain Round robin scheduling algorithm with example.
(a)
3 marks
Explain the scheduling criteria for a good scheduling algorithm.
(b)
4 marks
Explain segmentation with example.
(c)
7 marks
Explain Shortest Job scheduling algorithm with example.

Q.4

14 Marks
(a)
3 marksAsked in 2 of 6 papers
Explain page fault.

Also asked in Summer 2023 Q4b

(b)
4 marksAsked in 5 of 6 papers
What is deadlock? Explain the condition that leads to deadlock.

Also asked in Summer 2026 Q5a OR, Summer 2025 Q3b, Winter 2024 Q3a OR, Summer 2023 Q3b

(c)
7 marksAsked in 5 of 6 papers
Explain Banker algorithm for deadlock avoidance with example.

Also asked in Summer 2025 Q3c, Winter 2024 Q5c OR, Winter 2023 Q4c, Summer 2023 Q4c

(a)
3 marks
Explain Resource allocation graph.
(b)
4 marks
Explain different paging techniques.
(c)
7 marksAsked in 4 of 6 papers

Differentiate between External Fragmentation and Internal Fragmentation.

Also asked in Summer 2025 Q4a, Winter 2024 Q3b, Summer 2023 Q4b OR

Q.5

14 Marks
(a)
3 marksAsked in 2 of 6 papers
Explain major goals of I/O software.

Also asked in Summer 2026 Q2a, Summer 2026 Q4a OR

(b)
4 marksAsked in 2 of 6 papers

Differentiate between fixed and variable partitioning technique for memory management.

Also asked in Summer 2026 Q3c

(c)
7 marksAsked in 4 of 6 papers
Explain Disk arm scheduling algorithm.

Also asked in Summer 2026 Q5c OR, Summer 2025 Q4c OR, Winter 2024 Q5b OR

(a)
3 marksAsked in 2 of 6 papers
Explain DMA with block diagram.

Also asked in Summer 2025 Q3c OR

(b)
4 marks
Explain swapping in operating system.
(c)
7 marksAsked in 3 of 6 papers
Explain RAID level system.

Also asked in Summer 2026 Q4c OR, Summer 2025 Q5c OR

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About this paper

Official Gujarat Technological University (GTU) examination paper for Operating System (OS) (Winter 2025, B.E. · Computer Engineering, Sem 4). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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