題目與答案如下，看完依然不知的是什麼意思，希望有大大能幫忙解釋paged segmentation與segmented paging的差別。
Why are segmentation and paging sometimes combined into one scheme?
1.Paged segmentation handles the case of having very long segments that require a lot of time for allocation. By paging the segments, we reduce wasted memory due to external fragmentation as well as simplify the allocation.
2.Segmented paging is helpful when the page table becomes very large. A large contiguous section of the page table that is unused can be collapsed into a single-segment table entry with a page-table address of zero.

就是字面上的意思，如果看不懂的話建議把關鍵字餵狗都有很多材料幫忙延伸閱讀。另外碎碎念一下，這種解答根本沒有直接回答到問題。如果我是閱卷者，我會說你背的好，而不是覺得你真的了解問題的所在