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A hash table has 64 buckets and holds 48 entries. What is its load factor?

  • A.1.33
  • B.0.48
  • C.0.64
  • D.0.75

Answer: D

The load factor is entries divided by buckets, that is forty eight divided by sixty four, giving nought point seven five. Chained tables tolerate a load factor above one; open addressed tables degrade sharply as it approaches one.

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