How many block transfers are needed to reorganize the, Basic Computer Science

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How many block transfers are needed to reorganize the

Suppose that a file initially contains r = 120,000 records of R = 200 bytes each in an unsorted (heap) file. The block size B = 2400 bytes, the average seek time s = 16 ms, the average rotational latency rd = 8.3 ms, and the block transfer time btt = 0.8 ms. Assume that 1 record is deleted for every 2 records added until the total number of active records is 240,000.

a. How many block transfers are needed to reorganize the file?

b. How long does it take to find a record right before reorganization?

c. How long does it take to find a record right after reorganization?

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Basic Computer Science: How many block transfers are needed to reorganize the

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