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				| 1. | The order of a leaf node in a B+ tree is the maximum number of (value, data record pointer) pairs it can hold. Given that the block size is 1 kbyte, data record pointer is 7 byte long, the value field is 9 byte long and a block pointer is 6 byte long, what is the order of the leaf node? | 
| A. | 63 | 
| B. | 64 | 
| C. | 67 | 
| D. | 68 | 
| Answer» B. 64 | |