Process creation and termination are handled in __________category of system call.

Question

BlackTom AI · Accepted Answer

Process creation and termination are part of the process control category of system calls because they directly manipulate processes and their lifecycles.

Relevant knowledge points and concepts:
- Operating systems provide system calls grouped by function: process control, file management, device management, protection, interprocess communication, and information maintenance.
- Process control system calls create, terminate, and manage processes and their execution state. Common examples in Unix-like systems include fork (create), exec (replace process image), exit (terminate), wait (synchronize with child termination), and kill (signal/terminate).

Step-by-step reasoning:
1. Identify the operation: "Process creation and termination" clearly refers to starting new processes and ending existing ones.
2. Match to system call categories: Process creation (e.g., fork, spawn) and termination (e.g., exit, terminate) are operations that affect process control structures (process table entries, CPU scheduling, parent/child relationships).
3. Determine the appropriate category: System calls that manage the lifecycle of processes are classified under process control because they allocate process identifiers, resources, and scheduling context and remove them on termination.

Why the correct answer is correct:
- Process control system calls are specifically designed for creating, terminating, and managing processes. They manipulate process descriptors, scheduling queues, and interprocess relationships—precisely what creation and termination require.

Why the other options are incorrect:
- Protection: Pertains to access rights, authentication, and permission enforcement (not creating/ending processes).
- Device management: Concerns allocation and control of I/O devices and drivers (e.g., read/write to devices), not process lifecycle.
- File management: Involves creating, deleting, reading, writing, and organizing files, directories, and file descriptors—unrelated to process creation/termination.

Conclusion:
Process creation and termination fall under the process control category of system calls. This confirms the provided correct answer: process control.

Process creation and termination are handled in __________category of system call.单项选择题

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