ACtE07 · Chapter 7Basic Electrical & Electronics🏛️ Past Licensure QuestionID: f0027cbe
Which standard system calls or instructions are used to read data from a file and write data to a file?
Which standard system calls or instructions are used to read data from a file and write data to a file?
Multiple Choice Options
- A✓ Correct Option
READ and WRITE
- B
FETCH and STORE
- C
LOAD and SAVE
- D
INPUT and OUTPUT
Detailed Technical Solution & Explanation
In operating systems, file systems, and programming languages, the fundamental high-level input/output system calls or instructions used to transfer data from a file into memory and from memory out to a file are READ and WRITE.
Option Analysis:
•
Option A (READ and WRITE): Correct. The standard operating system primitives for file I/O.
•
Option B (FETCH and STORE): Incorrect. Low-level processor micro-operations for memory access.
•
Option C (LOAD and SAVE): Incorrect. Application-level UI commands.
•
Option D (INPUT and OUTPUT): Incorrect. General port or console I/O.
Reference: Demo2 · Set 2NEC Licensure Syllabus