B+- trees are preferred to binary trees in databases because – McqOptions

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1.	B+- trees are preferred to binary trees in databases because
A.	Disk access is much slower than memory Access
B.	Disk capacities are greater than memory capacities
C.	Disk data transfer rates are much less than memory data transfer rates
D.	All of above
Answer» B. Disk capacities are greater than memory capacities

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