Bitmaps can be used as a compressed storage mechanism at the leaf nodes of ________ for those values that occur very frequently.
A. B-trees
B. B+-trees
C. Bit trees
D. Both a and b
Answer:A
Bitmaps can be used as a compressed storage mechanism at the leaf nodes of ________ for those values that occur very frequently.
A. B-trees B. B+-trees C. Bit trees D. Both a and b
Explanation: Bitmaps are combined and stored in a B+ tree.