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      Question

      In Operating Systems, what is

      'thrashing'?
      A A type of CPU scheduling algorithm Correct Answer Incorrect Answer
      B Excessive paging activity Correct Answer Incorrect Answer
      C A hard disk fragmentation process Correct Answer Incorrect Answer
      D Unauthorized access to kernel memory Correct Answer Incorrect Answer
      E A method of process synchronization Correct Answer Incorrect Answer

      Solution

      Thrashing occurs when a system's working set exceeds available RAM, causing constant page faults and heavy disk I/O for swapping. CPU utilization drops drastically. It is prevented by the Working Set Model or Page Fault Frequency algorithm.

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