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Second chance Algorithm
When the page is chosen the reference bit is checked to see whether it has been referenced before. If that is the case after that it is given a second chance. The page is moved from head to tail as well as its reference bit is made 0. If it has not been referenced then it is removed.
Example Consider 1,2,3,4,3,5,6. Now 1,2,3 are entered into memory as well as when 4 comes 1 is removed, when 5 comes 2 is removed, when 6 comes 4 is removed instead of 3 as 3 has been referenced in among.
Explain the various methods for handling deadlocks. A set of processes is deadlocked if every process in the set is waiting for an event that only a process in the
Is it probable to have a deadlock involving only one single process? Describe your answer. Answer: No This pursue directly from the hold-and-wait condition.
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
Synchronization In communication among processes messages passed may be blocking or nonblocking - also called as synchronous and asynchronous. Blocking send : The sending pr
Write socket based fortune teller server
Define the DosExecPgm Functions used in the OS/2 DosExecPgm (objBuffer, objLen, flags, cmdLine, env, &resultCode, execName) DosExecPgm function is designed to load an execut
What is a path name? A pathname is the path from the root by all subdirectories to a specified file. In a two-level directory structure a user name and a file name explain a pa
Central to implementation of a modern memory management system is the page replacement algorithm. Modern virtual memory systems break memory up into pages and map (via a page table
Ask question #Minimum 100 difference between bounded and unbounded buffer words accepted#
Explain Deadlock Every process in a set of processes is waiting for an event which only a process in the set can cause.
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