ISRO Computer Science (CSE) 2009 - Question 12

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Using a larger block size in a fixed block size file system leads to

  • A. better disk throughput but poorer disk space utilization
  • B. better disk throughput and better disk space utilization
  • C. poorer disk throughput but better disk space utilization
  • D. poorer disk throughput and poorer disk space utilization

Answer: A. better disk throughput but poorer disk space utilization

Explanation: Larger blocks reduce the number of I/O operations (overhead) improving throughput, but increase internal fragmentation (wastage) for small files.

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