Page Table structure Protection a What kinds of access are permitted Modified When a page is written to (dirty) Referenced When a page is referenced Cache disabling a Data inconsistencyPage Table Structure ◼ Protection ❑ What kinds of access are permitted ◼ Modified: ❑ When a page is written to (dirty) ◼ Referenced: ❑ When a page is referenced ◼ Cache disabling ❑ Data inconsistency