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Virtual file systems
The file-system execution having of three major layers. The first layer is the file-system interface, based on the open, read, write and close calls and file descriptors.
Explain multilevel feedback queue in detail A process can move among the various queues; aging can be executed this way Multilevel-feedback-queue scheduler explained b
Q. State three merits of placing functionality in a device controller rather than in the kernel and State three disadvantages. Answer: Three advantages: Bugs are less probabl
Unix process API The two most important function calls to use when programming with several processes are fork and exec: fork() creates a copy of current process. It gives
Define Disadvantages of Top Down parsing of Backtracking The disadvantages of top down parsing of backtracking: (i) Semantic actions cannot be carried out while making a pr
What is co-operating scheduling? CPU scheduling decisions may possibly place under the following four circumstances: 1. When process switches from the running state to
Q. What are two dreadful problems that designers should solve to implement a network-transparent system? Answer: One such issue is making all the processors as well as storag
Explain about threading issues? The fork and exec system calls In a multithreaded program of few UNIX systems have chosen to have two versions of fork, one that duplicates e
Explain Chaining to Handle Collision Chaining: One easy scheme is to chain all collisions in lists attached to the suitable slot. This permits an unlimited number of collision
how to find ncr value in shell script
1. What must a kernel provide for an effective user-level thread implementation? 2. With respect to the quantum q in a scheduling algorithm, explain and discuss the impact of the
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