GATE CSE 2021 Set 1 Q21: True statements about paging

In the context of operating systems, which of the following statements is/are correct with respect to paging?

Try it: multiple select: one or more correct options

Select all correct options. No negative marking, no partial marks.

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Answer: A, C (official GATE 2021 final answer key)

Concept used: Paging removes external fragmentation but adds page-table overhead and internal fragmentation in the last page.

First step: Ask how the wasted space in a process's last page depends on the page size.

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Source: official GATE 2021 Set 1 CS question paper and final answer key, organised by IIT Bombay. Question paper · Answer key