WGU C191 Pre Assessment Questions and Answers Graded A+
What is the role of the OS?
a) To build the bootstrap program
b) To write to memory
c) To develop the kernel
d) To manage a computer's hardware ✔✔d) To manage a computer's hardware
Which OS service provides functions that are helpful to the user?
a) Resource allocation
b) Program execution
c) System calls
d) Accounting ✔✔b) Program execution
Which system call is used for device manipulation?
- / 3
a) ReadConsole()
b) Sleep()
- umas()
d) CreateFileMapping()
- chmod() ✔✔a) ReadConsole()
Which system calls can be grouped under the category of process controls?
a) Get process, file or device attributes
b) Allocate, free memory
c) Get file attributes, set file attributes
d) Open, close ✔✔b) Allocate, free memory
Which service function is responsible for identifying and correcting exceptions such as the lack of paper in a printer?
a) Protection and security
b) Error detection 2 / 3
c) User interface
d) Communication
e) Resource allocation ✔✔b) Error detection
Which type of OS service uses the CLI?
a) User interface
b) Program execution
c) I/O operations
d) Error detection ✔✔a) User interface
What represents layer zero (0) in the layered approach?
a) Data
b) Hardware
c) Applications
d) User interface ✔✔b) Hardware
- / 3