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Which of the following actions is/are typically not performed by the operating system when switching context from process A to process B?
- a)Saving current register values and restoring saved register values for process B.
- b)Changing address translation tables.
- c)Swapping out the memory image of process A to the disk.
- d)Invalidating the translation look-aside buffer.
Correct answer is option 'C'. Can you explain this answer?
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Which of the following actions is/are typically not performed by the o...
During context switch processes are not swapped out from memory to disk but processes are generally swapped out from memory to disk when they are suspended. Also, during context switch OS invalidates TLB so that the TLB coincides with the currently executing processes. So, option (C) is false.
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Which of the following actions is/are typically not performed by the o...
Explanation:
When switching context from one process to another, the operating system needs to perform various actions to ensure that the new process can run correctly. These actions include saving and restoring register values, changing address translation tables, and invalidating the translation look-aside buffer. However, swapping out the memory image of the current process to the disk is typically not performed during context switching.
Reason:
Swapping out the memory image of a process to the disk is a time-consuming operation that involves transferring large amounts of data between the main memory and the disk. Therefore, it is not practical to perform this operation during context switching, which is intended to be a fast operation to switch between processes quickly. Instead, swapping out a process is typically done when the system is low on memory and needs to free up space to accommodate other processes.
Conclusion:
In summary, swapping out the memory image of a process to the disk is typically not performed during context switching. This operation is reserved for situations where the system needs to free up memory and is not part of the normal process switching mechanism.
When switching context from one process to another, the operating system needs to perform various actions to ensure that the new process can run correctly. These actions include saving and restoring register values, changing address translation tables, and invalidating the translation look-aside buffer. However, swapping out the memory image of the current process to the disk is typically not performed during context switching.
Reason:
Swapping out the memory image of a process to the disk is a time-consuming operation that involves transferring large amounts of data between the main memory and the disk. Therefore, it is not practical to perform this operation during context switching, which is intended to be a fast operation to switch between processes quickly. Instead, swapping out a process is typically done when the system is low on memory and needs to free up space to accommodate other processes.
Conclusion:
In summary, swapping out the memory image of a process to the disk is typically not performed during context switching. This operation is reserved for situations where the system needs to free up memory and is not part of the normal process switching mechanism.
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Which of the following actions is/are typically not performed by the operating system when switching context from process A to process B?a)Saving current register values and restoring saved register values for process B.b)Changing address translation tables.c)Swapping out the memory image of process A to the disk.d)Invalidating the translation look-aside buffer.Correct answer is option 'C'. Can you explain this answer?
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