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MCQ

Swap space is allocated ____________

as a chunk of disk

separate from a file system

into a file system

all of the mentioned

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MCQ

________ replacement generally results in greater system throughput.

Local

Global

Universal

Public

Discussion

MCQ

In FIFO page replacement algorithm, when a page must be replaced ____________

oldest page is chosen

newest page is chosen

random page is chosen

none of the mentioned

Discussion

MCQ

Locality of reference implies that the page reference being made by a process ____________

will always be to the page used in the previous page reference

is likely to be one of the pages used in the last few page references

will always be one of the pages existing in memory

will always lead to page faults

Discussion

MCQ

A virtual memory system uses First In First Out (FIFO) page replacement policy and allocates a fixed number of frames to a process. Consider the following statements. P : Increasing the number of page frames allocated to a process sometimes increases the page fault rate Q : Some programs do not exhibit locality of reference Which of the following is TRUE?

Both P and Q are true, and Q is the reason for P

Both P and Q are true, but Q is not the reason for P

P is false but Q is true

Both P and Q are false

Discussion

MCQ

A multilevel page table is preferred in comparison to a single level page table for translating virtual address to physical address because ____________

it reduces the memory access time to read or write a memory location

it helps to reduce the size of page table needed to implement the virtual address space of a process

it is required by the translation lookaside buffer

it helps to reduce the number of page faults in page replacement algorithms

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Introduction to Operating System

Types

Services

Structures

Processes

Threads

CPU Scheduling

Process Synchronization

Memory Management

Storage Management

Input Output Systems

Networking

Distributed Operating System

Protection and Security

Unix

Linux

MS Windows

Mixed

Operating Systems Overview

Process Management

Finding and Processing Files

File Management

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