Overview
Module: ARR Data Model & Compose
Activity type: Quiz / retrieval practice
Target: ≥80%
Objective: Explain the relationship between a pathname, directory entry, inode, and file data.
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Questions
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- What two stat values should match when two pathnames are hardlinks to the same regular file?
- Why can a hardlink not normally be created between two different filesystems?
- How does a hardlink differ from a symbolic link?
- What happens to the other pathname when content is modified in place through one hardlinked pathname?
- What does a reader with an already open file descriptor observe when the destination pathname is atomically replaced?
- Why can a command described as a move behave differently across a filesystem boundary?
- Does atomic rename by itself guarantee that data will survive a sudden power loss? Explain.
- Why should a temporary publication name be created inside the destination directory?
- Why is a hardlinked library file not an independent backup of its incoming counterpart?
- Which checks provide stronger evidence of hardlink identity than matching filenames and file sizes?
In plain words: Make a safety copy first so a mistake does not erase your work.
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After scoring
In plain words: Read this block, then try the next action. If you feel stuck, tap What this means.
- Missed items → return to Reading → redo Feynman Retry → reattempt.
In plain words: Big idea: - Missed items → return to Reading → redo Feynman Retry → reattempt.
In plain words: Home Assistant watches sensors and runs if-this-then-that rules for your house.