Which of the followings shows the correct hierarchy of a layered file system…
2025
Which of the followings shows the correct hierarchy of a layered file system in an operating system?
A. Logical File System
B. File Organization Module
C. Basic File System
D. I/O Control
E. Application Programs
Choose the correct answer from the options given below:
- A.
A → B → C → D → E
- B.
D → E → C → A → B
- C.
E → A → B → C → D
- D.
E → C → B → A → D
Attempted by 349 students.
Show answer & explanation
Correct answer: C
Final correct hierarchy (top to bottom): Application Programs → Logical File System → File-Organization Module → Basic File System → I/O Control
Application Programs — user-level programs that request file operations.
Logical File System — provides high-level file semantics, namespace management, and access control; interfaces with applications.
File-Organization Module — manages on-disk file structures (e.g., allocation, indexing, record formats).
Basic File System — handles block-level transfers between memory and storage devices.
I/O Control — interfaces with device drivers and hardware; the lowest layer.
Reason: Each layer provides services to the layer above and relies on the layer below; therefore applications sit at the top using high-level file services, while I/O control and device interaction remain at the bottom.
A video solution is available for this question — log in and enroll to watch it.