B+ trees preferred over binary trees in databases

Q.  Why are B+ trees preferred over binary trees in databases?
- Published on 16 Jun 15

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: Disks are more reliable than memory
 
Transfer of data from disk to primary memory is in form of data blocks. These data blocks can store large information while transferring,transferring on single block is more efficient.

Post your comment / Share knowledge


Enter the code shown above:
 
(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)