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code for implementing NFU page replacement algorithm
What is the MFD? UFD? How are they related? MFD is master-file directory, which points to the UFDs. UFD is user-file directory, which points to each of user's files.
Second-Chance algorithm When a page has been selected, we inspect its reference bit. If the value is 0, we proceed to replace this page. If the reference bit is set to 1, thoug
Q. Define Input - Output operations? Serial lines, Disks, tapes and other devices should be communicated with at a very low level. The user require only specify the device and
What is the use of fork and exec system calls? Fork is a system call by which a latest process is created. Exec is also a system call, which is used after a fork by one of the
write a linux command to display lines from 25 - 45 of directory "/edc/password"
Define semaphore A semaphore is a protected abstract or variable data type that constitutes the classic method for restricting access to shared resources like shared memory in
Q. How would utilize of a RAM disk affect your selection of a disk-scheduling algorithm? What factors would you require to consider? Do the similar considerations apply to hard-di
Q. Explain the actions taken by a kernel to context switch between kernel level threads. Answer: Context switching among kernel threads classically requires saving the value
Q. How is the NTFS namespace planned? Explain. Answer: The NTFS namespace is prearranged as a hierarchy of directories where every directory uses a B+ tree data structure to
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