Question Discussion & Solution

MCQ

If no process is suspended, the signal operation ____________

puts the system into a deadlock state

suspends some default process execution

nothing happens

the output is unpredictable

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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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Process synchronization can be done on __________

hardware level

software level

both hardware and software level

none of the mentioned

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The bounded buffer problem is also known as ____________

Readers-Writers Problem

Dining- Philosophers Problem

Producer- Consumer Problem

None of the mentioned

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Mutual exclusion can be provided by the __________

mutex locks

binary semaphores

both a and b

none of the mentioned

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The following pair of processes share a common variable X.

Process A
int Y;
A1: Y = X*2;
A2: X = Y;   
 
Process B
int Z;
B1: Z = X+1;
B2: X = Z;

X is set to 5 before either process begins execution. As usual, statements within a process are executed sequentially, but statements in process A may execute in any order with respect to statements in process B. How many different values of X are possible after both processes finish executing?

two

three

four

eight

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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

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