Q.The data blocks of a very large file in UNIX file system are allocated using
Correct answer: an extension of indexed allocation
Explanation
The Unix file system used an extension of indexed allocation. It uses direct blocks, single indirect blocks, double indirect blocks and triple indirect blocks. Indexed allocation is a file allocation method where a separate index block is used to store painters to the data blocks of a file.
The Unix file system used an extension of indexed allocation. It uses direct blocks, single indirect blocks, double indirect blocks and triple indirect blocks. Indexed allocation is a file allocation method where a separate index block is used to store painters to the data blocks of a file.