WGU C191 Exam 2025 Questions and
Answers
In what way is an operating system like a government? - ANS It creates an environment
within which other programs can do useful work.
A _____ is an example of a systems program. - ANS command interpreter
____ operating systems are designed primarily to maximize resource utilization. -
ANS Mainframe
If a program terminates abnormally, a dump of memory may be examined by a ____ to
determine the cause of the problem. - ANS debugger
A message-passing model is ____. - ANS easier to implement than a shared memory model
for intercomputer communication
Which of the following would lead you to believe that a given system is an SMP-type system? -
ANS Each processor performs all tasks within the operating system.
Policy ____. - ANS determines what will be done
A ____ can be used to prevent a user program from never returning control to the operating
system. - ANS timer
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
, The major difficulty in designing a layered operating system approach is ____. -
ANS appropriately defining the various layers
Embedded computers typically run on a ____ operating system. - ANS real-time
A microkernel is a kernel ____. - ANS that is stripped of all nonessential components
Bluetooth and 802.11 devices use wireless technology to communicate over several feet, in
essence creating a ____. - ANS small-area network
A clustered system ____. - ANS gathers together multiple CPUs to accomplish computational
work
A boot block ____. - ANS typically only knows the location and length of the rest of the
bootstrap program
Which of the following is a property of peer-to-peer systems? - ANS Clients and servers are
not distinguished from one another.
_____ provide(s) an interface to the services provided by an operating system. - ANS System
calls
_____ is not one of the major categories of system calls. - ANS Security
What are some other terms for kernel mode? - ANS supervisor mode,
system mode, privileged mode
_____ allow operating system services to be loaded dynamically. - ANS Modules
Pg. 2 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
Answers
In what way is an operating system like a government? - ANS It creates an environment
within which other programs can do useful work.
A _____ is an example of a systems program. - ANS command interpreter
____ operating systems are designed primarily to maximize resource utilization. -
ANS Mainframe
If a program terminates abnormally, a dump of memory may be examined by a ____ to
determine the cause of the problem. - ANS debugger
A message-passing model is ____. - ANS easier to implement than a shared memory model
for intercomputer communication
Which of the following would lead you to believe that a given system is an SMP-type system? -
ANS Each processor performs all tasks within the operating system.
Policy ____. - ANS determines what will be done
A ____ can be used to prevent a user program from never returning control to the operating
system. - ANS timer
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
, The major difficulty in designing a layered operating system approach is ____. -
ANS appropriately defining the various layers
Embedded computers typically run on a ____ operating system. - ANS real-time
A microkernel is a kernel ____. - ANS that is stripped of all nonessential components
Bluetooth and 802.11 devices use wireless technology to communicate over several feet, in
essence creating a ____. - ANS small-area network
A clustered system ____. - ANS gathers together multiple CPUs to accomplish computational
work
A boot block ____. - ANS typically only knows the location and length of the rest of the
bootstrap program
Which of the following is a property of peer-to-peer systems? - ANS Clients and servers are
not distinguished from one another.
_____ provide(s) an interface to the services provided by an operating system. - ANS System
calls
_____ is not one of the major categories of system calls. - ANS Security
What are some other terms for kernel mode? - ANS supervisor mode,
system mode, privileged mode
_____ allow operating system services to be loaded dynamically. - ANS Modules
Pg. 2 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
