Which of the following statements is true about a parent process and its child processes?

• A. A parent may only monitor its children.
• B. A parent may terminate the execution of one of its children.
• C. A child process cannot affect its parent.
• D. A parent cannot create children processes.

Answer: (B)

The statement that a parent may terminate the execution of one of its children is accurate because, in operating systems, the relationship between parent and child processes allows the parent to manage its children. In many operating systems, a parent process has the capability to send termination signals to its child processes, effectively stopping their execution. This is part of the process control capabilities that a parent process has, which includes creating, managing, and terminating child processes.

Understanding this relationship is critical in process management, as it highlights the responsibilities and controls a parent process has over its children. This feature is commonly utilized in scenarios where a parent process needs to ensure that its child processes do not continue running under certain conditions, such as when an error occurs or when the parent process itself is terminating.

This control mechanism is integral to maintaining system stability and effective resource management, illustrating the hierarchical structure of processes in an operating system.