WGU - C191 |61 Questions and Answers 100% 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