

MCQOPTIONS
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1. |
B+ trees are preferred to binary trees in databases because |
A. | disk capacities are greater than memory capacities |
B. | disk access is much slower than memory access |
C. | disk data transfer rates are much less than memory data transfer rates |
D. | disks are more reliable than memory |
Answer» C. disk data transfer rates are much less than memory data transfer rates | |