In the context of a Unix-based system, where does a daemon process execute in the...

In Unix-based systems, memory is divided into two primary regions: kernel space and user space, each serving distinct purposes for process execution and system stability.

Why B is correct:Daemon processes are background services (e.g., sshd, cron) that run with elevated privileges but operate in user space. User space is the memory area allocated for user applications and processes, isolated from kernel space to prevent direct hardware access or system crashes. CNSP highlights that daemons run in user space to maintain system integrity, interacting with the kernel via system calls.

Why other option is incorrect:

A. Kernel space:Kernel space is reserved for the operating system kernel and device drivers, which have unrestricted access to hardware. Running daemons in kernel space would pose significant security and stability risks, and it is not the standard practice in Unix systems.

References:CNSP "Unix Process Management" (Section on Memory Spaces) explains the separation of kernel and user space, noting that daemons execute in user space for security reasons.