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Q. What system calls have to be implementing by a command interpreter or shell in order to start a new process? Answer: In the UNIX systems a fork system call followed by an ex
Explain segmentation hardware? We define an completion to map two-dimensional user-defined addresses into one-dimensional physical addresses. This mapping is affected by means
What is graceful degradation? In multiprocessor systems, failure of single processor will not halt the system, but only slow it down by sharing the work of failure system by ot
Q. Show that a few schedules are possible under the two-phase locking protocol however not possible under the timestamp protocol and vice versa. Answer: A schedule that is auth
Describe when you run an unlink() operation to remove a file on the ext3 file system. Be specific about what disk blocks have to be written where in what order. State your assumpti
What are batch systems? Early computers were physically huge machines run from a console. The general input devices were card readers and tape drivers. The common output device
Hashed page table method A general approach for managing address spaces larger than 32 bits is to use a hashed page table with the hash values being the virtual-page number.
demonstrate ergonomics
The physical memory acts as a cache backed by the disk. When the physical memory is full, and we want to read in another page from disk, we have to evict a page from physical memor
Question 1 What is Micro-kernel? What are the benefits of Micro-kernel? Question 2 Explain seven state process models used for OS with necessary diagram. Differentiate betwee
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