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MCQ

The resource allocation graph is not applicable to a resource allocation system ____________

with multiple instances of each resource type

with a single instance of each resource type

single and multiple instances of each resource type

none of the mentioned

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Consider a transaction T1 that committed prior to checkpoint. The record appears in the log before the record. Any modifications made by T1 must have been written to the stable storage either with the checkpoint or prior to it. Thus at recovery time ____________

There is a need to perform an undo operation on T1

There is a need to perform a redo operation on T1

There is no need to perform an undo and redo operation on T1

All of the mentioned

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The two ways of aborting processes and eliminating deadlocks are ____________

Abort all deadlocked processes

Abort all processes

Abort one process at a time until the deadlock cycle is eliminated

All of the mentioned

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Which of the following conditions must be satisfied to solve the critical section problem?

Mutual Exclusion

Progress

Bounded Waiting

All of the mentioned

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If no cycle exists in the resource allocation graph ____________

then the system will not be in a safe state

then the system will be in a safe state

all of the mentioned

none of the mentioned

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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

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