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. Shortest Job First executes first the job with the least processor needsthat first entered the queuethat has been in the queue for the longestthat last entered the queue Answer: Option A 2. Disk scheduling includes deciding which should be accessed nextorder in which disk access requests must be servicedthe physical location of the filethe logical location of the file Answer: Option B 3. Dijkstra's algorithm deals with mutual exclusiondeadlock recoverydeadlock avoidancecache coherence Answer: Option C 4. Remote computing services involves the use of timesharing and multiprocessinginteractive processingbatch processingreal time processing Answer: Option C 5. Multiprogramming systems Are easier to develop than single programming systems Execute each job fasterExecute more jobs in the same time Are used only on large main frame computers Answer: Option C Read more from - Operating System Questions Answers - Chapter 1