WGU C191 Pre-Assessment Questions and Answers Graded A+
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Course
WGU C191 Pre-Assessment
Institution
WGU C191 Pre-Assessment
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)...
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? a) ReadConsole() b) Sleep() c) umas() d) CreateFileMapping() e) 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 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 What is a disadvantage of booting an OS stored in ROM? a) Changing a bootstrap requires additional memory b) Changing a bootstrap requires new hardware chips c) Changing a bootstrap requires replacing the battery d) Changing a bootstrap requires process r e-engineering ✔✔b) Changing a bootstrap requires new hardware chips What is a valid process state? a) Waiting b) Listening c) Reading d) Queuing ✔✔a) Waiting What are two valid components of a process control block (PCB)? a) The process counter b) Th e memory buffer c) The job queue d) The process state e) The text section ✔✔a) The process counter d) The process state What is the difference between kernel and user threads? a) Kernel threads are supported by the user permissions, whereas user threads are directly managed by the operating system. b) Kernel threads are directly managed by the operating system, whereas user threads are managed without kernel support. c) Kernel threads are indirectly managed by the file system, whereas user threads are directly managed by the operating system.
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