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MCQ

Optimal page-replacement algorithm is difficult to implement, because ____________

it requires a lot of information

it requires future knowledge of the reference string

it is too complex

it is extremely expensive

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The essential content(s) in each entry of a page table is/are ____________

Virtual page number

Page frame number

Both virtual page number and page frame number

Access right information

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The run time mapping from virtual to physical addresses is done by a hardware device called the ____________

Virtual to physical mapper

Memory management unit

Memory mapping unit

None of the mentioned

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What is Dynamic loading?

loading multiple routines dynamically

loading a routine only when it is called

loading multiple routines randomly

none of the mentioned

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Which of the following is TRUE?

Overlays are used to increase the size of physical memory

Overlays are used to increase the logical address space

When overlays are used, the size of a process is not limited to the size of the physical memory

Overlays are used whenever the physical address space is smaller than the logical address space

Discussion

MCQ

When the valid-invalid bit is set to valid, it means that the associated page ____________

is in the TLB

has data in it

is in the process's logical address space

is the system's physical address space

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category More Operating System Topics

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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