32 votes 32 votes The essential content(s) in each entry of a page table is / are Virtual page number Page frame number Both virtual page number and page frame number Access right information Operating System gatecse-2009 operating-system virtual-memory easy + – Kathleen asked Sep 22, 2014 • edited Oct 24, 2016 by go_editor Kathleen 11.7k views answer comment Share Follow See all 3 Comments See all 3 3 Comments reply Chhotu commented Dec 5, 2017 reply Follow Share Notice It is Page frame number. It is not just Frame Number because in multiple level page table using Frame Number may be little bit confusing. Refer -> https://gateoverflow.in/490/gate2008-67 7 votes 7 votes mohan123 commented Nov 1, 2019 reply Follow Share A page table entry contains frame number ,Present bit ,Modify bit,valid bit, proaction bit Other control bits And, page number is used to index this table. 3 votes 3 votes JAINchiNMay commented Jul 18, 2022 i edited by JAINchiNMay Jul 25, 2022 reply Follow Share what is present bit and proaction bit , did you mean protection in place of proaction? 0 votes 0 votes Please log in or register to add a comment.
Best answer 30 votes 30 votes It is (B). The page table contains the page frame number essentially. Gate Keeda answered Jan 10, 2015 • edited Jul 13, 2018 by kenzou Gate Keeda comment Share Follow See all 9 Comments See all 9 9 Comments reply Anjali Sinha commented Jan 4, 2016 reply Follow Share what is the meaning of virtual page number ????? 1 votes 1 votes shikharV commented Jan 28, 2016 reply Follow Share I think it refers to address of another page table in case of multilevel page tables. 0 votes 0 votes Shiva Chaitanya Gaju commented Feb 3, 2016 reply Follow Share In each page table entry,we usually be having the set of bits like dirty bit, access bit, page is present in memory or not bit,address of the next page table or referencing page, this is essential, which is equivalent to storing up of the address of the reference, i.e physical address. 0 votes 0 votes vaishali jhalani commented Oct 6, 2016 reply Follow Share Access right information also stored in page table. Ans should be both B and D. 1 votes 1 votes cse23 commented Oct 24, 2016 reply Follow Share if instead of virtual page no, it is simply page number then what will be essential content: only frame no. or bothe page no. and frame no. ???????? 2 votes 2 votes Shweta Nair commented Sep 27, 2017 reply Follow Share I think it will still be frame number. Because page no. is just used as an index into the page table, so that the corresponding frame number is obtained. So the essential content will always be the frame number. 12 votes 12 votes Nit9 commented Dec 25, 2017 i reshown by Nit9 Jan 8, 2018 reply Follow Share page number is an index, and index is not stored, just like array index is not stored in array data, its simply implied by its location 5 votes 5 votes srestha commented Nov 6, 2019 reply Follow Share What about virtual page number? 0 votes 0 votes Sarang commented Nov 15, 2020 reply Follow Share only frame numbers are essential because virtual page numbers are used as indices of each page table entry.. 0 votes 0 votes Please log in or register to add a comment.
8 votes 8 votes A page table entry contains Present bit Modify bit Other control bits And frame number. And, page number is used to index this table. Hence, B) is essential anytime. Himanshu Kumar 1 answered Oct 1, 2017 • reshown Oct 1, 2017 by Himanshu Kumar 1 Himanshu Kumar 1 comment Share Follow See all 3 Comments See all 3 3 Comments reply Abhisek Tiwari 4 commented Dec 24, 2018 reply Follow Share page no index to map with corresponding frame no where and how it is stored??? 0 votes 0 votes amitqy commented Mar 14, 2019 reply Follow Share Both virtual page number and page frame number---------> why it is wrong? 0 votes 0 votes Kuljeet Shan commented Apr 19, 2019 reply Follow Share there is nothing called virtual page number that is saved in page table entry that's why it is wrong @amitqy. 1 votes 1 votes Please log in or register to add a comment.
