Page Table

Question

A page table based translation will always consume less memory to store translation meta-data, than a seg-mentation based solution. True/False. Explain.

Comments

always ==> False

May be some times, it is preferred to use Segmentation than Paging.

Answer 1

If we are considering the Paging for the translation (Single level paging) then the metadata required is very less as there will be only a single page table containing information about mapping between pages to frames.

But when we consider the Segmented Paging then for each segement there will be paging done,so number of page tables will be equal to # of segments,then metadata could be large.

But as the statement is saying ALWAYS,it may not be true in case when there is MULTILEVEL PAGING,then sometimes it will be preferable to go with the segmented paging.

Comments

@Nishikant

in the question, it is asking about only between paging and segmentation