fork() create new processes; exec() replaces process image.1. What is the primary purpose of the fork() system call in process management?
2. What function in Unix-like operating systems is used to create a new process by cloning the parent process?
3. Which page replacement algorithm approximates the Least Recently Used (LRU) strategy by using reference bits?
Process — creation method?
fork() and exec() system calls
Processes — definition?
Units of execution identified by PID.
Thread — resource sharing?
Share address space within a process
System calls — function?
Create or replace processes (`fork()`, `exec()`).
Page replacement — strategy?
FIFO, LRU, Clock algorithms
Process states — examples?
Ready, running, blocked.
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