(Top 2024/2025 EXAM REVIEW PAPER ) WGU - C191, Exam Questions and answers, 100% Accurate, VERIFIED.

WGU - C191, Exam Questions and answers, 100% Accurate, VERIFIED. What is the role of the OS? - -To manage a computer's hardware Which OS service provides functions that are helpful to the user? - -Program execution Which OS service provides functions that are helpful to the user? - -Program execution Which system call is used for device manipulation? - -ReadConsole() Which system calls can be grouped under the category of process controls? - -Allocate, free memory Which service function is responsible for identifying and correcting exceptions such as the lack of paper in a printer? - -Error detection Which type of OS service uses the CLI? - -User interface What represents layer zero (0) in the layered approach? - -Hardware What is a disadvantage of booting an OS stored in ROM? - -Changing a bootstrap requires new hardware chips. What is a valid process state? - -Waiting What are two valid components of a process control block (PCB)? - -The process counter & The process state What is the difference between kernel and user threads? - -Kernel threads are directly managed by the operating system, whereas user threads are managed without kernel support.