Beginner
Operating Systems
Q39 / 100
What is copy-on-write (COW) in operating systems?
Correct! Well done.
Incorrect.
The correct answer is B) Deferring the copy of a shared resource until a process actually modifies it, reducing unnecessary copying (used in fork())
B
Correct Answer
Deferring the copy of a shared resource until a process actually modifies it, reducing unnecessary copying (used in fork())
Explanation
After fork(), parent and child share physical pages marked read-only. On a write, the OS creates a private copy just for that page. This makes fork() efficient.
Progress
39/100