Operating-systems Questions Set 36:
In which page replacement policy may Belady's anomaly occur?
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Which operating system features a shell as a user interface?
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A memory buffer used to accommodate a speed differential is called a ________.
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Hard real-time operating systems have less jitter than soft real-time operating systems.
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Consider a process with a page number of 100. If the page offset is 10, what is the logical address for this process?
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Which of the following are open-source operating systems?
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Which of the following is the major component of the time taken when accessing data on a disk?
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What is the task of the short-term scheduler?
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Suppose a disk has 201 cylinders, numbered from 0 to 200. At some time the disk arm is at cylinder 100, and there is a queue of disk access requests for cylinders 30, 85, 90, 100, 105, 110, 135 and 145. If Shortest-Seek Time First (SSTF) is being used for scheduling the disk access, the request for cylinder 90 is serviced after servicing ____________ number of requests.
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Consider a main memory with five page frames and the following sequence of page references: 3, 8, 2, 3, 9, 1, 6, 3, 8, 9, 3, 6, 2, 1, 3. Which one of the following is true with respect to page replacement policies First-In-First Out (FIFO) and Least Recently Used (LRU)?
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