9. How many disk I/O operations (read() and write()) does it take: a) to seek a...

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9. How many disk I/O operations (read() and write()) does it take: a) to seek a location in the middle of a file b) to delete a file and wipe out the contents of all its blocks ("secure delete") Assume that the file system uses contiguous allocation. The file has N blocks. Assume that the file control block and the directory table are already cached in the memory. 9. How many disk I/O operations (read() and write()) does it take: a) to seek a location in the middle of a file b) to delete a file and wipe out the contents of all its blocks ("secure delete") Assume that the file system uses contiguous allocation. The file has N blocks. Assume that the file control block and the directory table are already cached in the memory.

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