12. Match the following for Unix system calls: List – I List – II (a) exec (i) Creates a new process (b) brk (ii) Invokes another program overlaying memory space with a copy of an executable file (c) wait (iii) To increase or decrease the size of data region (d) fork (iv) A process synchronizes with termination of child process code: a b c d
1.(ii) (iii) (iv) (i)
2. (iii) (ii) (iv) (i)
3. (iv) (iii) (ii) (i)
4. (iv) (iii) (i) (ii)