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Operating Systems

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2.5k
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Explain in brief the various security threats
operating systems updated 4.3 years ago by pg1118329 • 0
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853
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Compare various scheduling policies.
operating systems updated 4.3 years ago by pg1118329 • 0
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847
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What is real time system? Compare RTOS with traditional OS. Discuss interrupts with respect to real time behaviour.
operating systems updated 4.3 years ago by pg1118329 • 0
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604
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Explain the different pre-emptive scheduling policies with suitable examples.
operating systems updated 4.3 years ago by pg1118329 • 0
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1.2k
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Periodic and Aperiodic rate monotonic scheduling.
operating systems updated 4.3 years ago by pg1118329 • 0
8
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51k
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We assume a disk with 200 tracks and disk request queue has random requests in it. The requested disks in the order are 55,58,39,18,90,160,150,38,184 starting with a track 100.
operating systems updated 4.3 years ago by phenjoisilab • 0
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1000
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Pre-emptive and non pre-emptive scheduling comparison.
operating systems updated 4.3 years ago by pg1118329 • 0
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8.7k
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What is bounded and unbounded priority inversion? Also explain how it is solved using priority inheritance and priority ceiling.
operating systems updated 4.3 years ago by pg1118329 • 0
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721
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Give need for inter-process communication and synchronization. Describe the methods of the same (IPC) in detail.
operating systems updated 4.3 years ago by pg1118329 • 0
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Explain priority inversion problems and solutions.
operating systems updated 4.3 years ago by pg1118329 • 0
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What is shared data problem and mention various methods to resolve it? Give relevant examples.
operating systems updated 4.3 years ago by pg1118329 • 0
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6.5k
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Consider the given snap of the system
operating systems updated 4.3 years ago by phenjoisilab • 0
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2.7k
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Consider the page fault and hit using FIFO,LRU and Optimal page replacement algorithm for the following page sequence (2,3,5,4,2,5,7,3,8,7) Assume page frame size is 3.
operating systems updated 4.3 years ago by phenjoisilab • 0
3
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Compare the following Disk scheduling algorithms using appropriate example. SSTF, FCFS, SCAN , C-SCAN, LOOK
operating systems updated 4.3 years ago by phenjoisilab • 0
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Calculate hit ad miss percentage for the following string using page replacement policies FIFO, LRU and Optimal. Compare it for the frame size 2 and 4.
operating systems updated 4.3 years ago by krithikkm200 • 10
1
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7.3k
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Calculate hit and miss for the following string using page replacement policies - FIFO, LRU and Optimal. Compare it for the frame size 3 &4.
operating systems updated 4.3 years ago by krithikkm200 • 10
3
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In a multiprogramming and time-sharing environment, several users share the system simultaneously.
operating systems updated 4.3 years ago by pg1118329 • 0
3
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What is paging? Explain LRU, FIFO and Optimal page replacement policy for the following string.
operating systems updated 4.3 years ago by teamques10 ★ 70k
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17k
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Which of the following instructions should be privileged?
operating systems updated 4.3 years ago by pg1118329 • 0
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5.7k
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Cache advantages and disadvantages
operating systems updated 4.3 years ago by vyshnavitorlako909 • 10
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Define process, threads and tasks also explain various states of task.
operating systems updated 4.3 years ago by bhaskar12082000 • 0
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Assume following processes arrive for execution at the indiacted and length of cpu burst time in ms.
operating systems updated 4.3 years ago by phenjoisilab • 0
4
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15k
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Explain the hardware support for paging.
operating systems updated 4.3 years ago by phenjoisilab • 0
3
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9.8k
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State the characteristics of a good scheduler(5m)
operating systems updated 4.3 years ago by phenjoisilab • 0
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16k
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Explain various process states with diagram.
operating systems updated 4.3 years ago by teamques10 ★ 70k
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