312-49 · Question #515
Which of the following is a record of the characteristics of a file system, including its size, the block size, the empty and the filled blocks and their respective counts, the size and location of…
The correct answer is B. Superblock. The superblock is a critical metadata structure in Unix/Linux file systems (e.g., ext2/ext3/ext4). It acts as the file system's 'header,' storing global information such as total size, block size, counts of free and used blocks, inode table size and location, disk block map…
Question
Which of the following is a record of the characteristics of a file system, including its size, the block size, the empty and the filled blocks and their respective counts, the size and location of the inode tables, the disk block map and usage information, and the size of the block groups?
Options
- AInode bitmap block
- BSuperblock
- CBlock bitmap block
- DData block
How the community answered
(44 responses)- A2% (1)
- B89% (39)
- C2% (1)
- D7% (3)
Explanation
The superblock is a critical metadata structure in Unix/Linux file systems (e.g., ext2/ext3/ext4). It acts as the file system's 'header,' storing global information such as total size, block size, counts of free and used blocks, inode table size and location, disk block map, and block group details. Without the superblock, the OS cannot mount or interpret the file system. The other options are narrower: the inode bitmap block tracks which inodes are in use, the block bitmap block tracks which data blocks are in use, and data blocks store actual file content.
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