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What does the table indicator indicate when it is set to one?

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What does the table indicator indicate when it is set to one?

(a) GDT

(b) LDT

(c) remains unchanged

(d) toggles with GTD and LTD

I have been asked this question in an online interview.

The doubt is from Segmentation and Paging in division Memory Systems of Embedded Systems

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Correct choice is (b) LDT

To elaborate: The table indicator is a part of selector that selects which table is to be used. If the table indicator is set to logic one, the will use the local descriptor table and if the table indicator is set to logic zero, it will use the global descriptor table.

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