Operating System Programming and Technical

Q. What is a daemon?

A. Daemon is a program that runs in the background without user's interaction. A daemon runs in a multitasking operating system like UNIX. A daemon is initiated and controlled by special programs known as 'processes'.

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Operating System Other Question

Q. What is Marshalling?

A. The process of packaging and sending interface method parameters across thread or process boundaries. Q. What is pre-emptive and non-preemptive scheduling?

A. Preemptive scheduling: The preemptive scheduling is prioritized. The highest priority process should always be the process that is currently utilized. Non-Preemptive scheduling: When a process enters the state of running, the state of that process is not deleted from the scheduler until it finishes its service time