WGU D686 (ALL OF THE QUIZZES FROM D686
BOOK.) ANSWERED CORRECTLY TO PASS!!
What is the role of an operating system in modern computing? Answer -
Managing hardware resources and providing a user interface
How do operating systems enhance the efficiency of computer systems?
Answer - By managing and coordinating hardware and software resources
Which components are managed by an operating system? Answer - CPU,
memory, and device controllers
What is the role of the operating system in handling I/O operations? Answer -
Managing data flow between hardware components
What does dual mode operation in operating systems enable? Answer -
Differentiation between user mode and kernel mode operations
How does an operating system prevent a single program from monopolizing
the CPU? Answer - By using a timer to interrupt programs
Which type of operating system is suited for handling multiple programs
running simultaneously? Answer - Multiprogramming
,Which type of operating system allows multiple users to share resources
effectively? Answer - Distributed
What is a significant limitation of operating systems in managing computer
resources? Answer - Susceptibility to security vulnerabilities
How do operating systems protect data and maintain system integrity? Answer
- By isolating processes and controlling access to resources
Which function does the file system service in an operating system primarily
provide? Answer - Managing data storage
How does the error detection service contribute to system stability? Answer -
By constantly monitoring and correcting faults
How does a graphical user interface (GUI) benefit users interacting with an
operating system? Answer - By allowing users to interact with the system using
visual elements
Which aspect of system services enhances user experience in mobile devices?
Answer - Touch-screen interfaces
Which role do system calls play in an operating system? Answer - Acting as a
bridge between applications and the kernel
Which system call is used for file management? Answer - ReadFile()
Which characteristic defines a single-processor system? Answer - Utilizing a
single CPU core for executing instructions
, Which benefit do multiprocessor systems provide over single-processor
systems? Answer - Increased throughput and efficiency for tasks
What is the purpose of system utilities in an operating system? Answer -
Facilitating program development and execution
Which operating system structure separates functionality into multiple layers?
Answer - Layered structure
Which vulnerability can be exploited by malicious actors to gain unauthorized
access to operating systems? Answer - Buffer overflows
What is the primary purpose of asymmetric clustering in a clustered system?
Answer - To ensure one computer is always in hot-standby mode
Which system service enables the operating system to interact with peripheral
hardware, such as disk drives and printers? Answer - Device management
What is the role of a process in a computer system? Answer - Executing user
and system tasks
Which state is a process when it is paused and is not currently being executed?
Answer - Waiting
How does a context switch impact CPU performance? Answer - It temporarily
suspends the current process to switch to another.
BOOK.) ANSWERED CORRECTLY TO PASS!!
What is the role of an operating system in modern computing? Answer -
Managing hardware resources and providing a user interface
How do operating systems enhance the efficiency of computer systems?
Answer - By managing and coordinating hardware and software resources
Which components are managed by an operating system? Answer - CPU,
memory, and device controllers
What is the role of the operating system in handling I/O operations? Answer -
Managing data flow between hardware components
What does dual mode operation in operating systems enable? Answer -
Differentiation between user mode and kernel mode operations
How does an operating system prevent a single program from monopolizing
the CPU? Answer - By using a timer to interrupt programs
Which type of operating system is suited for handling multiple programs
running simultaneously? Answer - Multiprogramming
,Which type of operating system allows multiple users to share resources
effectively? Answer - Distributed
What is a significant limitation of operating systems in managing computer
resources? Answer - Susceptibility to security vulnerabilities
How do operating systems protect data and maintain system integrity? Answer
- By isolating processes and controlling access to resources
Which function does the file system service in an operating system primarily
provide? Answer - Managing data storage
How does the error detection service contribute to system stability? Answer -
By constantly monitoring and correcting faults
How does a graphical user interface (GUI) benefit users interacting with an
operating system? Answer - By allowing users to interact with the system using
visual elements
Which aspect of system services enhances user experience in mobile devices?
Answer - Touch-screen interfaces
Which role do system calls play in an operating system? Answer - Acting as a
bridge between applications and the kernel
Which system call is used for file management? Answer - ReadFile()
Which characteristic defines a single-processor system? Answer - Utilizing a
single CPU core for executing instructions
, Which benefit do multiprocessor systems provide over single-processor
systems? Answer - Increased throughput and efficiency for tasks
What is the purpose of system utilities in an operating system? Answer -
Facilitating program development and execution
Which operating system structure separates functionality into multiple layers?
Answer - Layered structure
Which vulnerability can be exploited by malicious actors to gain unauthorized
access to operating systems? Answer - Buffer overflows
What is the primary purpose of asymmetric clustering in a clustered system?
Answer - To ensure one computer is always in hot-standby mode
Which system service enables the operating system to interact with peripheral
hardware, such as disk drives and printers? Answer - Device management
What is the role of a process in a computer system? Answer - Executing user
and system tasks
Which state is a process when it is paused and is not currently being executed?
Answer - Waiting
How does a context switch impact CPU performance? Answer - It temporarily
suspends the current process to switch to another.
