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•   Semaphore variable
•   Semaphores
•   Monitor the database
•   Q. The following program fragment is semaphore,critical region,locking or dedicated mode int i= 263; putchar {i} 1 semaphore 2 critical region 3 locking 4 dedicated mode
•   What is semaphore?What is monitor?
•   Where is the semaphore stored in UNIX operating system?
•   When multiple process will be using a shared memory to restict the ambiguity we use semaphore technique. Can I achieve the same thing using a file in place of semaphore , if yes how? If no why?
•   What is semaphore?
•   Which of the following module type handles loadable system calls including "semaphore" operation?
•   How would you remove a semaphore / shared memory whose owner processes have died?

•   Worst problem encountered till date