假设段页式存储管理系统中的地址结构如下图所示，则系统（）。
- A.最多可有256个段，每个段的大小均为2048个页，页的大小为8K
- B.最多可有256个段，每个段的最大允许有2048个页，页的大小为8K
- C.最多可有512个段，每个段的大小均为1024个页，页的大小为4K
- D.最多可有512个段，每个段最大允许有1024个页，页的大小为4K
正确答案及解析
正确答案
解析
本题考查操作系统页式存储管理方面的基础知识。从图中可见，页内地址的长度是13位，213=8192，即8K；页号部分的地址长度是11位，每个段最大允许有211=2048个页；段号部分的地址长度是8位，28=256，最多可有256个段。故本题的正确答案为B。
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