Explain about a B+ tree and its uses

Question

Explain about a B+ tree and its uses.

Answer 1

B+ tree shows the way of insertion, removal and retrieval of the nodes in a sorted fashion. All operations are identified by a ‘key’. It has maximum and minimum bounds upon the number of keys in every index segment, dynamically. Whole records in a B+ tree are persisted at the last level, that is, leaf level in the sequence of keys.

It is used to visit the nodes beginning by the root to the left and/or right sub tree while starting from the first node of the leaf level. The bi-directional tree traversal is possibly within the B+ tree.