Assume a B+-tree's node may contain up to 10 pointers, which of the following description about...
Assume a B+-tree's node may contain up to 10 pointers, which of the following description about the B+-tree's nodes can not be true:
| A. |
A leaf node has 4 search key values. |
|
| B. |
A leaf node has 5 search key values. |
|
| C. |
An internal node has 4 search key values. |
|
| D. |
An internal node has 5 search key values. |
Homework Answers
A B+ tree with maximum p pointers is of order p.
Thus, a node can have minimum ceil(p/2) children.
Also, B+ tree can have minimum ceil(p/2)-1 keys and maximum p-1 keys
Here p= 10.
Thus minimum no. Of keys= 4
Maximum no. Of keys= 9
Minimum children=5
Maximum children= 10
Leaf must contain atleast p/2 i.e 5 keys
Thus statement A i.e A leaf node has 4 search key values can not be true.
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