Computer ScienceWhich of these is NOT a likely benefit of demand paging in avirtual memory system?Less physical memory is needed to run all processes.O Less CPU is spent in memory management.O Less I/O is incurred.O More processes can run simultaneously.Assume that we have demand-paged virtual memory withsingle-level paging and that the page-table is stored inmemory. The probability of a TLB hit is 90%. The probabilityfor a page-fault is 0.1%. It is given that the page to be replacedis dirty twenty percent of the time. What is the probabilitythat a memory reference leads to a TLB miss but not a pagefault?O 89.1%O 9.0%O 9.9%O 50%Consider a system where a PTE contains both the referencedand modified bits represented as . Fora page replacement algorithm that employs enhanced secondchance, which of these combinations represent the bestcandidate for page replacement?O <0,0>O <0,1>O<1,0>O 50%Consider a system where a PTE contains both the referencedand modified bits represented as . Fora page replacement algorithm that employs enhanced secondchance, which of these combinations represent the bestcandidate for page replacement?O <0,0>O <0,1>O <1,0 >O<1,1 >please help me with these guestionsOOOO

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Which of these is NOT a likely benefit of demand paging in a virtual memory system? Less physical memory is needed to run all processes. O Less CPU is spent in memory management. O Less I/O is incurred. O More processes can run simultaneously.

Which of these is NOT a likely benefit of demand paging in a virtual memory system? Less physical memory is needed to run all processes. O Less CPU is spent in memory management. O Less I/O is incurred. O More processes can run simultaneously.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Fundamentals of memory

A collection of connected storage devices form the memory unit. It is a space to store data and instructions required for processing. Information is stored in a memory unit in the form of bits. There are two types of memory namely:

Question

Computer Science
Which of these is NOT a likely benefit of demand paging in a
virtual memory system?
Less physical memory is needed to run all processes.
O Less CPU is spent in memory management.
O Less I/O is incurred.
O More processes can run simultaneously.
Assume that we have demand-paged virtual memory with
single-level paging and that the page-table is stored in
memory. The probability of a TLB hit is 90%. The probability
for a page-fault is 0.1%. It is given that the page to be replaced
is dirty twenty percent of the time. What is the probability
that a memory reference leads to a TLB miss but not a page
fault?
O 89.1%
O 9.0%
O 9.9%
O 50%
Consider a system where a PTE contains both the referenced
and modified bits represented as <referenced, modified>. For
a page replacement algorithm that employs enhanced second
chance, which of these combinations represent the best
candidate for page replacement?
O <0,0>
O <0,1>
O<1,0>
O 50%
Consider a system where a PTE contains both the referenced
and modified bits represented as <referenced, modified>. For
a page replacement algorithm that employs enhanced second
chance, which of these combinations represent the best
candidate for page replacement?
O <0,0>
O <0,1>
O <1,0 >
O<1,1 >
please help me with these guestions
OOOO

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