Correct Answer: B. b) System calls
System calls are the interface between an application and the operating system. They are essentially functions provided by the OS that can be called by programs to request services like file access, memory allocation, process creation, etc. Think of them as the gateway to the OS's core functionalities.
If you think there is any confusion in the given MCQs, you can comment below.
docmcqs.com is Pakistan's No.1 online platform for preparing for all types of exams including PPSC, FPSC, KPSC, SPSC, Ministry of Defence, and for one-paper MCQs. This includes Pedagogy MCQs, general knowledge MCQs, current affairs MCQs, and much more.