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MCQ

The two phase locking protocol consists of ____________

growing and shrinking phase

shrinking and creation phase

creation and growing phase

destruction and creation phase

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MCQ

When several processes access the same data concurrently and the outcome of the execution depends on the particular order in which the access takes place, is called?

dynamic condition

race condition

essential condition

critical condition

Discussion

MCQ

An un-interruptible unit is known as ____________

single

atomic

static

none of the mentioned

Discussion

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If deadlocks occur frequently, the detection algorithm must be invoked ________

rarely

frequently

rarely

none of the mentioned

Discussion

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A deadlock free solution to the dining philosophers problem ____________

necessarily eliminates the possibility of starvation

does not necessarily eliminate the possibility of starvation

eliminates any possibility of any kind of problem further

none of the mentioned

Discussion

MCQ

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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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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