A UNIX file system has 1 KB block size and 4-byte disk - Practice (English)

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A UNIX file system has 1 KB block size and 4-byte disk - Practice (English) | ObjectiveMcq

PracticeUnix SystemBasicsA UNIX file system has 1 KB block s...

Basics Unix SystemMedium

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A UNIX file system has 1 KB block size and 4-byte disk addresses. What is the maximum file size if the inode contains ten direct block entries, one single indirect block entry, one double indirect block entry and one triple indirect block entry?

Correct Answer: C — 16 GB

Explanation:

With 1 KB blocks and 4-byte addresses, a block holds 256 pointers. The triple indirect block allows 256^3 × 1 KB = 16 GB, dominating the maximum file size limit.

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