Question Detail Reference bit is used for Implementing LRU page replacement algorithmImplementing NRU algorithmTo check the page table entry in the cache memorynone of above Answer: Option B Similar Questions : 1. Problem of thrashing is affected significantly by program structureprogram sizeprimary storage sizeall of above Answer: Option A 2. A hardware device which is capable of executing a sequence of instructions, is known as CPUALUCUProcessor Answer: Option D 3. 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 4. Dynamic allocation of storage areas with VSAM files is accomplished by hashingcontrol splitsover flow areasrelative recording Answer: Option B 5. Root directory of a disk should be placed at the fixed address in the main memoryat a fixed location on the diskat the fixed location on system diskanywhere on the disk Answer: Option B Read more from - Operating System Questions Answers - Chapter 1