Q63 Recall that Beladys anomaly is that the pages fault rate may increase as the number of allocated frames increases Now consider the following statements gate computer science 2017

The Eduladder is a community of students, teachers, and programmers just interested to make you pass any exams. So we solve previous year question papers for you.
In eduladder you can Ask,Answer,Listen,Earn and Download Questions and Question papers.
Watch related videos of your favorite subject.
Connect with students from different parts of the world.
Apply or Post Jobs, Courses ,Internships and Volunteering opportunity. For FREE
See Our team
Wondering how we keep quality?
Got unsolved questions? Ask Questions

GATE-Computer-Science-Engineering-2017-->View question

Q.63) Recall that Belady’s anomaly is that the pages-fault rate may increase as the number of allocated frames increases. Now consider the following statements: -gate computer science 2017

S1: Random page replacement algorithm (where
    a page chosen at random is replaced) 
    suffers from Belady’s anomaly.

S2: LRU page replacement algorithm suffers
    from Belady’s anomaly .
Which of the following is CORRECT ?

A) S1 is true, S2 is true
B) S1 is true, S2 is false
C) S1 is false , S2 is true
D) S1 is false, S2 is false
View all qusetions

You might like this video:Books Suggestion of Engineeering Mathematics for GATE
Watch more here

Watch more videos from this user Here

Eduladder videos are community generated video contents which we deliver to you according to the content you are browsing.We are constantly working on video delivering algorithms in order to give you the best experiance as possible

Learn how to upload a video and start earning here

Answers
B) S1 is true, S2 is false

Explanation: 
Belady’s anomaly proves that it is possible to have more page faults when increasing the number of page frames while using the First in First Out (FIFO) page replacement algorithm. For example, if we consider reference string 3 2 1 0 3 2 4 3 2 1 0 4 and 3 slots, we get 9 total page faults, but if we increase slots to 4, we get 10 page faults. 

S1: Random page replacement algorithm (where a page chosen at random is replaced) suffers from Belady’s anomaly. -> Random page replacement algorithm can be any including FIFO so its true 

S2: LRU page replacement algorithm suffers from Belady’s anomaly . -> LRU does'nt suffer from Belady’s anomaly . 

Therefore, option B is correct

This explanation is contributed by Satya Shiromani

Answerd on:2018-05-29 Answerd By:deepuckraj

Likes:
Be first to like this answer

Dislikes:
Be first to dislike this answer
Talk about this  Delete  Like  Dislike

You might like this video:Uses of Javascript
Watch more here

Watch more videos from this user Here

Eduladder videos are community generated video contents which we deliver to you according to the content you are browsing.We are constantly working on video delivering algorithms in order to give you the best experiance as possible

Learn how to upload a video and start earning here



Lets together make the web is a better place

We made eduladder by keeping the ideology of building a supermarket of all the educational material available under one roof. We are doing it with the help of individual contributors like you, interns and employees. So the resources you are looking for can be easily available and accessible also with the freedom of remix reuse and reshare our content under the terms of creative commons license with attribution required close.

You can also contribute to our vision of "Helping student to pass any exams" with these.
Answer a question: You can answer the questions not yet answered in eduladder.How to answer a question
Career: Work or do your internship with us.Work with us
Create a video: You can teach anything and everything each video should be less than five minutes should cover the idea less than five min.How to upload a video on eduladder