Question Discussion & Solution

MCQ

When a program tries to access a page that is mapped in address space but not loaded in physical memory, then ____________

segmentation fault occurs

fatal error occurs

page fault occurs

no error occurs

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MCQ

If the offset is legal ____________

it is used as a physical memory address itself

it is subtracted from the segment base to produce the physical memory address

it is added to the segment base to produce the physical memory address

none of the mentioned

Discussion

MCQ

Working set model for page replacement is based on the assumption of ____________

modularity

locality

globalization

random access

Discussion

MCQ

With either equal or proportional algorithm, a high priority process is treated ___________ a low priority process.

greater than

same as

lesser than

none of the mentioned

Discussion

MCQ

Transient operating system code is ____________

is not easily accessible

comes and goes as needed

stays in the memory always

never enters the memory space

Discussion

MCQ

If the size of logical address space is 2 to the power of m, and a page size is 2 to the power of n addressing units, then the high order _____ bits of a logical address designate the page number, and the ____ low order bits designate the page offset.

m, n

n, m

m-n, m

m-n, n

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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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