What is the minimum number of block reads needed to complete each query for each of the indexes? (Do not assume records with consecutive search key values are stored in the same block.)

Find records with search-key value 23. Find records with search-key values between 11 and 23 (inclusive).

Find records with search-key vaues less than 7.

(a) B+-tree index with k-3 19 5 17 2329 7 17 19 23 29 31 2 3 5 7 (b) B+-tree index with k 5 5 1119 19 23 29 31 23