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The blocking factor is:

  • A.a group of fields stored in adjacent memory.
  • B.the number of physical records per page.
  • C.
    attributes grouped together by the same primary key.
  • D.attributes grouped together by the same secondary key.

Answer: B

Correct answer: the number of physical records per page.

The blocking factor is how many records fit in one block or page, and it follows from the record length and the block size. It governs how many records one read brings in, which is why sequential processing is faster with a high blocking factor and why block size is a physical design decision.

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