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MCQ

Which one of the following is a visual ( mathematical ) way to determine the deadlock occurrence?

resource allocation graph

starvation graph

inversion graph

none of the mentioned

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MCQ

An un-interruptible unit is known as ____________

single

atomic

static

none of the mentioned

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What are the operations that can be invoked on a condition variable?

wait and signal

hold and wait

signal and hold

continue and signal

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What is a semaphore?

is a binary mutex

must be accessed from only one process

can be accessed from multiple processes

none of the mentioned

Discussion

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The state of the data accessed by an aborted transaction must be restored to what it was just before the transaction started executing. This restoration is known as ________ of transaction.

safety

protection

roll-back

revert-back

Discussion

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Bounded waiting implies that there exists a bound on the number of times a process is allowed to enter its critical section ____________

after a process has made a request to enter its critical section and before the request is granted

when another process is in its critical section

before a process has made a request to enter its critical section

none of the mentioned

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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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Community Discussion

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Report Error

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