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What is the purpose of the OS protection boundary?
What is the purpose of the OS protection boundary?
- To limit the number of processes that can run concurrently
- To enhance the speed of file operations
- To restrict user applications from accessing privileged resources (correct)
- To prevent the CPU from executing system calls
In what mode does the CPU execute when the Privileged Mode bit is set to 0?
In what mode does the CPU execute when the Privileged Mode bit is set to 0?
- User mode (correct)
- Exception mode
- Interrupt mode
- Kernel mode
What action is taken when an application makes a system call?
What action is taken when an application makes a system call?
- The kernel checks if the caller has permission for the requested operation (correct)
- The system call is delayed for future execution
- CPU executes the system call directly
- The application is terminated immediately
Which component is responsible for handling system calls in the OS?
Which component is responsible for handling system calls in the OS?
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What stage does the CPU enter after executing a system call and returning from it?
What stage does the CPU enter after executing a system call and returning from it?
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What is the purpose of the instruction trap in an operating system?
What is the purpose of the instruction trap in an operating system?
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Which component is responsible for managing memory allocation in an operating system?
Which component is responsible for managing memory allocation in an operating system?
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What happens when an interrupt occurs during CPU execution?
What happens when an interrupt occurs during CPU execution?
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Which component assists in transferring control to an appropriate exception handler when an exception occurs?
Which component assists in transferring control to an appropriate exception handler when an exception occurs?
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What role does the OS protection boundary play in ensuring system stability?
What role does the OS protection boundary play in ensuring system stability?
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