Operating Systems - Inode Structure - File Metadata & Block Pointers
Which data structure pattern best describes how an inode locates the data blocks of a small file that fits entirely within its direct pointers?
Which data structure pattern best describes how an inode locates the data blocks of a small file that fits entirely within its direct pointers?
easy🔍 Pattern Recognition Q1 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand inode direct pointers
Inodes contain a fixed number of direct pointers that directly reference data blocks for small files.Step 2: Analyze each option
Linked list traversal (A) is inefficient and not used for direct pointers. Hash tables (C) are not part of inode structure. Binary search (D) requires sorted data, which inode pointers are not.Final Answer:
Option B -> Option BQuick Check:
Direct pointers provide immediate block addresses [OK]
Quick Trick: Direct pointers are fixed and direct, no traversal needed [OK]
Common Mistakes:
MISTAKES- Confusing direct pointers with indirect or linked structures
Trap Explanation:
PITFALL- Candidates often think inode pointers form a linked list or require searching, but direct pointers are fixed indexes.
Interviewer Note:
CONTEXT- Tests basic understanding of inode direct pointers and file block mapping.
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