A ____ is a small record in the datafile header with one bit for each data block number that marks the beginning of a used group,or a free group,of consecutive blocks in the datafile.
A) data block
B) block
C) bitmap
D) byte

Question

Quizplus · Accepted Answer

A bitmap is a small record in the datafile header that marks the beginning of a used group, or a free group, of consecutive blocks in the datafile. The bitmap contains one bit for each data block number, making it easy to quickly determine which blocks are in use and which are free. Therefore, the best choice for the given scenario is C) bitmap.

A ____ Is a Small Record in the Datafile Header