Question Discussion & Solution

MCQ

One way to ensure that the circular wait condition never holds is to ____________

impose a total ordering of all resource types and to determine whether one precedes another in the ordering

to never let a process acquire resources that are held by other processes

to let a process wait for only one resource at a time

all of the mentioned

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Write ahead logging is a way ____________

to ensure atomicity

to keep data consistent

that records data on stable storage

all of the mentioned

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The request and release of resources are ___________

command line statements

interrupts

system calls

special programs

Discussion

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The number of resources requested by a process ____________

must always be less than the total number of resources available in the system

must always be equal to the total number of resources available in the system

must not exceed the total number of resources available in the system

must exceed the total number of resources available in the system

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What are Multithreaded programs?

lesser prone to deadlocks

more prone to deadlocks

not at all prone to deadlocks

none of the mentioned

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A system has 12 magnetic tape drives and 3 processes : P0, P1, and P2. Process P0 requires 10 tape drives, P1 requires 4 and P2 requires 9 tape drives.

Process    
P0            
P1                             
P2                             
 
Maximum needs (process-wise: P0 through P2 top to bottom)    
10             
4   
9
 
Currently allocated (process-wise)
5
2
2

Which of the following sequence is a safe sequence?

P0, P1, P2

P1, P2, P0

P2, P0, P1

P1, P0, P2

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Introduction to Operating System

Types

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Process Synchronization

Memory Management

Storage Management

Input Output Systems

Networking

Distributed Operating System

Protection and Security

Unix

Linux

MS Windows

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Operating Systems Overview

Process Management

Finding and Processing Files

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