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MCQ

What is compaction?

a technique for overcoming internal fragmentation

a paging technique

a technique for overcoming external fragmentation

a technique for overcoming fatal error

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Which of the following page replacement algorithms suffers from Belady

Optimal replacement

LRU

FIFO

Both optimal replacement and FIFO

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MCQ

To obtain better memory utilization, dynamic loading is used. With dynamic loading, a routine is not loaded until it is called. For implementing dynamic loading ____________

special support from hardware is required

special support from operating system is essential

special support from both hardware and operating system is essential

user programs can implement dynamic loading without any special support from hardware or operating system

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MCQ

If relocation is static and is done at assembly or load time, compaction _________

cannot be done

must be done

must not be done

can be done

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MCQ

External fragmentation will not occur when?

first fit is used

best fit is used

worst fit is used

no matter which algorithm is used, it will always occur

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MCQ

The _________ time in a swap out of a running process and swap in of a new process into the memory is very high.

context-switch

waiting

execution

all of the mentioned

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Introduction to Operating System

Types

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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

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