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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, though, we give that page a second option and move on to select the next FIFO page.
State critical section problem? Discuss three solutions to solve the critical section problem. C-S Problem:- n processes all competing to use some shared data Every
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
What are the differences between process and thread? The fundamental difference between a process and a thread is that a process has an entire copy of the program to itself and
advantages and disadvantages of kernal level thread
what is MFD
USER-LEVEL THREADS (ULT) In this level the kernel isn't aware of the existence of threads -- All thread management is complete by the application by using a thread library. Th
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
What is the hardware support required to implement paging? Each operating system has its own techniques for storing page tables. The majority allocates a page table for each pr
A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i
Differentiate tightly coupled systems and loosely coupled systems? Loosely coupled systems:- Every processor has its own local memory Every processor can communicate
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