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Welcome to the Process Synchronization MCQs Page

Dive deep into the fascinating world of Process Synchronization with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Process Synchronization, a crucial aspect of Operating System. In this section, you will encounter a diverse range of MCQs that cover various aspects of Process Synchronization, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Operating System.

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Check out the MCQs below to embark on an enriching journey through Process Synchronization. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Operating System.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Process Synchronization. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Process Synchronization MCQs | Page 7 of 15

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Q61.
Semaphore is a/an _______ to solve the critical section problem.

a.

hardware for a system

b.

special program for a system

c.

integer variable

d.

none of the mentioned

Discuss
Answer: (c).integer variable
Q62.
The two atomic operations permissible on semaphores are :

a.

wait, signal

b.

wait, stop

c.

wait, hold

d.

hold, signal

Discuss
Answer: (a).wait, signal
Q63.
Spinlocks are :

a.

CPU cycles wasting locks over critical sections of programs

b.

Locks that avoid time wastage in context switches

c.

Locks that work better on multiprocessor systems

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q64.
The main disadvantage of spinlocks is that :

a.

they are not sufficient for many process

b.

they require busy waiting

c.

they are unreliable sometimes

d.

they are too complex for programmers

Discuss
Answer: (b).they require busy waiting
Q65.
The wait operation of the semaphore basically works on the basic _______ system call.

a.

stop()

b.

block()

c.

hold()

d.

wait()

Discuss
Answer: (b).block()
Q66.
The signal operation of the semaphore basically works on the basic _______ system call.

a.

continue()

b.

wakeup()

c.

getup()

d.

start()

Discuss
Answer: (b).wakeup()
Q67.
If the semaphore value is negative :

a.

its magnitude is the number of processes waiting on that semaphore

b.

it is invalid

c.

no operation can be further performed on it until the signal operation is performed on it

d.

none of the mentioned

Discuss
Answer: (a).its magnitude is the number of processes waiting on that semaphore
Q68.
The code that changes the value of the semaphore is :

a.

remainder section code

b.

non – critical section code

c.

critical section code

d.

none of the mentioned

Discuss
Answer: (c).critical section code
Q69.
What will happen if a non-recursive mutex is locked more than once ?

a.

Starvation

b.

Deadlock

c.

Aging

d.

Signaling

Discuss
Answer: (b).Deadlock
Q70.
A semaphore :

a.

is a binary mutex

b.

must be accessed from only one process

c.

can be accessed from multiple processes

d.

none of the mentioned

Discuss
Answer: (c).can be accessed from multiple processes
Page 7 of 15

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