Texas Tech University Final Exam question

Balaji Jegan asked Jan 28, 2018

568 views

3 votes

The Operating System on a hypothetical computer provides its users with a virtual memory space of 2³² bytes. But the computer has only 64 megabytes (2²⁶ bytes) of physical memory. This virtual memory is implemented using paging with a page size of 1024 (2¹⁰) bytes. (10%)

To what page number does virtual address 0x12345678 refer?

Operating System
operating-system
virtual-memory
paging

+ –

Balaji Jegan asked Jan 28, 2018

Balaji Jegan

568 views

See all

7 7 Comments

Show 4 previous comments

Balaji Jegan

commented Jan 28, 2018

Hey Panda! Answer given is 0x48D15

0 votes

MiNiPanda

commented Jan 28, 2018

Oh.. 1st 22 bits are for page no. right?

[0001 0010 0011 0100 0101 01]10 0111 1000

[__00][01 00][10 00][11 01][00 01][01 01] coming to 048D15 ..

Oh sorry.. I did some bit counting mistake then :P

btw what does that (10%) mean? I totally ignored it during calculation?

0 votes

MiNiPanda

commented Jan 28, 2018

Yes i got it while writing the previous comment :P

0 votes

Please log in or register to add a comment.

Please log in or register to answer this question.

0 Answers

Voting & Accepting an answer helps improve the community

← Previous Next →

← Previous in category Next in category →

Related questions

0 votes

0 answers

SSR17 asked Feb 8

211 views

memory management
we have 8 pages (each side 32B) to store in physical memory of 2^32 bits how many bits are required to identify each page , according to me 3 bits are required but that is wrong plz explain why

we have 8 pages (each side 32B) to store in physical memory of 2^32 bits how many bits are required to identify each page , according to me 3 bits are required but that i...

SSR17

211 views

SSR17 asked Feb 8

Operating System
memory-management
operating-system
paging
virtual-memory

+ –

5 votes

1 answer

GO Classes asked Jan 28

418 views

GO Classes Test Series 2024 | Mock GATE | Test 13 | Question: 21
Consider a virtual memory system that uses paging. Virtual and physical addresses are both $32$ bits long, and the page size is $4 \textsf{KB}=2^{12}$ bytes. A process $\text{P}_1$ has the following page table. ... $\textsf{0x00003b65}$ $\textsf{0x00875b65}$ $\textsf{0x00875}$ Translation is not possible as per the given page table

Consider a virtual memory system that uses paging. Virtual and physical addresses are both $32$ bits long, and the page size is $4 \textsf{KB}=2^{12}$ bytes. A process $\...

GO Classes

418 views

GO Classes asked Jan 28

Operating System
goclasses2024-mockgate-13
goclasses
operating-system
paging
virtual-memory
1-mark

+ –

4 votes

1 answer

GO Classes asked Jan 21

654 views

GO Classes Test Series 2024 | Mock GATE | Test 12 | Question: 9
Consider a system with $4 \mathrm{~GB}$ of physical memory and $64 \mathrm{~GB}$ of Virtual Memory. The page size is $4 \mathrm{~KB}$. Recall that the page table is stored in physical memory and consists of PTEs (page ... each page could store $2048$ PTEs. How many pages does our page table occupy if we have a single-level page table?

Consider a system with $4 \mathrm{~GB}$ of physical memory and $64 \mathrm{~GB}$ of Virtual Memory. The page size is $4 \mathrm{~KB}$. Recall that the page table is store...

GO Classes

654 views

GO Classes asked Jan 21

Operating System
goclasses2024-mockgate-12
goclasses
numerical-answers
operating-system
virtual-memory
paging
1-mark

+ –

0 votes

1 answer

Unique_999 asked Sep 3, 2023

303 views

Can anyone explain , in the concept of segmentation . let the base address of a particular segment is 1900 and the limit of the segment is 400(i.e., size limit). Exactly what does it represent at the address 1900. Is it a page or group of pages or words

Unique_999

303 views

Unique_999 asked Sep 3, 2023

Operating System
segmentation
operating-system
virtual-memory
paging

+ –

tags	tag:apple
author	user:martin
title	title:apple
content	content:apple
exclude	-tag:apple
force match	+apple
views	views:100
score	score:10
answers	answers:2
is accepted	isaccepted:true
is closed	isclosed:true

7 7 Comments reply

Please log in or register to add a comment.

Please log in or register to answer this question.

0 Answers

Related questions

7 7 Comments