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Explain the ThreadSwitchWithDelay Function used in Netware
ThreadSwitchWithDelay( )
This command is used when threads are waiting for an event or resource but don't want to use semaphores for that access. The command will tell NetWare to schedule this thread on the temporarily handicapped list. Threads on this list will run only after a system-configurable amount of Run-List threads have executed. In our above example, we could replace the delay ( ) procedure with ThreadSwitchWithDelay( ).
Define ‘LRU’ page replacement policy LRU is Least Recently Used page replacement policy.
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How can deadlocks be represented? Deadlocks are able to be described in terms of a directed graph called as a system resource-allocation graph. This graph contains of the foll
what is dual mode operation
Q. What is the purpose of system calls? Answer: System calls permit user-level processes to request services of the operating system.
Question: a) The following refers to optimization under Windows XP: i) Give five steps which could undertake to enhance overall system performance in a default Windows XP in
Determine a component of a process precedence sequence Process name, Sequence operator ‘;’ and Concurrency operator ‘,’
Explain how the os implements virtual memory phenomenon.
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Q. In some systems a subdirectory is able to be read and written by an authorized user just as ordinary files can be. a. Explain the protection problems that could arise. b.
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