Question Detail Belady anamoly occurs in Optimal replacementFIFOLRUboth in FIFO and LRU Answer: Option B Similar Questions : 1. Fragmentation of a file system occurs only is file is not used properlycan always be preventedhappens in all file systemscan be removed by compaction Answer: Option B 2. To avoid the race condition, the number of processes that may be simultaneously inside the critical section is 12310 Answer: Option C 3. Main function of shared memory is: to use primary memory efficentlyto do intra process communicationto do inter process communicationnone of above Answer: Option C 4. Daisy chain is a device for connecting a number of controllers to a deviceconnecting a number of device to a controllerall of above none of above Answer: Option B 5. A series of statements explaining how the data is to be processed is called instructioncompilerprograminterpretor Answer: Option C Read more from - Operating System Questions Answers - Chapter 1