Consider a datacenter grade hdd that spins at 15k rpm. it is configured with a filesystem of 4kb blocks. what is the maximum throughput of a random 7kb read of a large file?

What key should you press and hold to select and open multiple files at one time? enter alt control esc

Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?

Norder to receive financial aid at his vocational school, mario must fill out the fafsa. the fafsa is a form that must be completed to determine . in order to complete a fafsa, you must submit . the fafsa can students obtain