Question 1
(a)
Explain the uses of Operating system.
3 Marks
(b)
Explain multiprogramming and multiprocessing operating system.
4 Marks
(c)
What is process? Explain process state transition diagram.
7 Marks
Gujarat Technological UniversityWinter 2025 Examination
GTU 3140702 Operating System (OS) Winter 2025 Paper Solution & PDF
B.E. · Computer Engineering · Semester 4 · Subject Code: 3140702
Total Marks70 MarksExternal theory exam
Passing Marks23 Marks33% minimum cutoff
Exam Duration2.5 Hours2:30 PM – 5:00 PM
Paper Structure5 QuestionsWith internal OR choices
Question 2
(a)
What is thread? Explain user level and kernel level thread.
3 Marks
(b)
What is critical section? Explain race condition with example.
4 Marks
(c)
What is Semaphore? Solve dinning philosopher problem using semaphore.
7 Marks
OR OPTION
(c)
What is Binary Semaphore? Solve Reader and Writer problem using semaphore.
7 Marks
Question 3
(a)
Differentiate between preemptive and non preemptive scheduling algorithm.
3 Marks
(b)
Explain Principles of Concurrency with example.
4 Marks
(c)
Explain Round robin scheduling algorithm with example.
7 Marks
OR OPTION
(a)
Explain the scheduling criteria for a good scheduling algorithm.
3 Marks
(b)
Explain segmentation with example.
4 Marks
(c)
Explain Shortest Job scheduling algorithm with example.
7 Marks
Question 4
(a)
Explain page fault.
3 Marks
(b)
What is deadlock? Explain the condition that leads to deadlock.
4 Marks
(c)
Explain Banker algorithm for deadlock avoidance with example.
7 Marks
OR OPTION
(a)
Explain Resource allocation graph.
3 Marks
(b)
Explain different paging techniques.
4 Marks
(c)
Differentiate between External Fragmentation and Internal Fragmentation.
7 Marks
Question 5
(a)
Explain major goals of I/O software.
3 Marks
(b)
Differentiate between fixed and variable partitioning technique for memory management.
4 Marks
(c)
Explain Disk arm scheduling algorithm.
7 Marks
OR OPTION
(a)
Explain DMA with block diagram.
3 Marks
(b)
Explain swapping in operating system.
4 Marks
(c)
Explain RAID level system.
7 Marks
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About this Examination Paper & Attribution
Official Gujarat Technological University (GTU) examination paper and step-by-step solutions 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.