GATE 2000
March 18, 2025GATE 2000
March 18, 2025GATE 2000
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Question 20
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Which of the following need not necessarily be saved on a context switch between processes?
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General purpose registers
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Translation look-aside buffer
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Program counter
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All of the above
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Question 20 Explanation:
We don’t need to save TLB or cache to ensure correct program resumption. They are just bonus for ensuring better performance. But PC, stack and registers must be saved as otherwise program cannot resume.
Correct Answer: B
Question 20 Explanation:
We don’t need to save TLB or cache to ensure correct program resumption. They are just bonus for ensuring better performance. But PC, stack and registers must be saved as otherwise program cannot resume.