Database-Management-System

Question 549

B+ tree are preferred to binary tree in database because

A	Disk capacities are greater than memory capacities
B	Disk access much slower than memory access
C	Disk data transfer rates are much less than memory data transfer rate
D	Disk are more reliable than memory

Database-Management-SystemB-and-B+-TreesUGC NET CS 2011 Dec-Paper-2

Question 549 Explanation:

In B+ trees it is easy to reduce the number of last level access from the disk when the disk size is too large.

Correct Answer: B

Question 549 Explanation:

In B+ trees it is easy to reduce the number of last level access from the disk when the disk size is too large.