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The computational technique used to compute the disk storage address of individual records is called:

  • A.bubble memory
  • B.key fielding
  • C.dynamic reallocation
  • D.hashing

Answer: D

Correct answer: hashing

Hashing computes a storage address directly from the record’s key, so a record can be reached in a single access without consulting an index. Its cost is collisions, when two keys hash to the same address, which must be resolved by chaining or by probing.

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