JNTU
JNTU B.Tech III OPERATING SYSTEMS Previous Question Paper (May/June - 2019 - R16)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit.
PART A
List the objectives of operating system.
Answer
The primary objectives of an operating system are to provide a convenient and efficient environment for executing user programs, to manage computer hardware resources effectively, and to act as an intermediary between the user and the computer hardware.
What are the functions of memory management?
Answer
Memory management functions include tracking the status of each memory location (allocated or free), deciding which processes get memory and when, allocating memory when requested, and deallocating memory when a process terminates or no longer needs the space.
What is the difference between a process and a thread?
Answer
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What is the importance of process synchronization?
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What are the disadvantages of virtual memory?
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What is meant by thrashing?
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Define file.
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List down the operations that may be performed on file.
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What is mean by mutual exclusion?
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What is starvation?
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PART B
What are the services provided by operating system? Explain.
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Explain in detail about process management.
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Discuss in detail about computer system architecture.
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What are the goals of protection in operating system? Differentiate between protection and security.
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What is critical section problem in operating system? Explain with an example.
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Write short notes on synchronization in linux and windows.
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What is process scheduling? Discuss about round-robbin scheduling.
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What is semaphore? How does it work? Explain.
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Discuss in detail about IA-32 segmentation.
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Differentiate between paging and segmentation.
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Discuss in detail about least recently used page replacement algorithm with example.
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Write short notes on page table structure.
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What are the different methods of accessing a file?
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Discuss in detail about the file protection mechanism.
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Explain swap space management.
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Discuss briefly about disk structure.
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Explain banker’s algorithm.
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Discuss in detail about resource-allocation graph.
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Explain about principles of protection.
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What are the various schemes for implementation of access matrix?
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