The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.How many times will process P0 print andlsquo;0andrsquo;?a)At least twiceb)Exactly twicec)Exactly thriced)Exactly onceCorrect answer is option 'A'. Can you explain this answer? - EduRev Computer Science Engineering (CSE) Question

Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity

Open App

Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > The following program consists of 3 concurren...

Join the Discussion on the App

The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.

How many times will process P0 print ‘0’?

a)
At least twice
b)
Exactly twice
c)
Exactly thrice
d)
Exactly once

Correct answer is option 'A'. Can you explain this answer?

FREE This question is part of

Test: Concurrency & Synchronization

Attempt Test

Attempt this Test

Most Upvoted Answer

The following program consists of 3 concurrent processes and 3 binary ...

Concept:
Binary semaphore which can take only two values 0 and 1 and ensure mutual exclusion.
A process is entered into the critical section only when the value of semaphore(s) = 1
Otherwise, it will wait until semaphore(s) >0

The semaphores are initialized as S0=1, S1=0, S2=0.
Because S0 =1 then P0 enter into the critical section and other processes will wait until either S1=1 or S2 =1
The minimum number of times 0 printed:

S0 =1 then P0 enter into the critical section
print '0'
then release S1 and S2 means S1 =1 and s2 =1
now either P1 or P2 can enter into the critical section
if P1 enter into the critical section
release S0
then P2 enter into the critical section
release S0
P1 enter into the critical section
print '0'

The minimum number of time 0 printed is twice when executing in this order (p0 -> p1 -> p2 -> p0)
The Maximum number of times 0 printed:

S0 =1 then P0 enter into the critical section
print '0'
Then release S1 and S2 means S1 =1 and s2 =1
Now either P1 or P2 can enter into the critical section
If P1 enter into the critical section
Release S0 means S0 =1
S0 =1 then P0 enter into the critical section
print '0'
Then P2 enter into the critical section
Release S0 means S0 =1
S0 =1 then P0 enter into the critical section
print '0'

Maximum no. of time 0 printed is thrice when execute in this order (p0 -> p1 -> p0 -> p2 -> p0)
So, At least twice will process P0 print ‘0’

Answered by Gate Gurus · View profile

Free Test

FREE

Test: Concurrency & Synchronization
10 Ques | 30 Min

Start Free Test

View all free Computer Science Engineering (CSE) tests

Community Answer

The following program consists of 3 concurrent processes and 3 binary ...

S0 =1 then P0 enter into the critical section
print '0'
then release S1 and S2 means S1 =1 and s2 =1
now either P1 or P2 can enter into the critical section
if P1 enter into the critical section
release S0
then P2 enter into the critical section
release S0
P1 enter into the critical section
print '0'

The minimum number of time 0 printed is twice when executing in this order (p0 -> p1 -> p2 -> p0)
The Maximum number of times 0 printed:

S0 =1 then P0 enter into the critical section
print '0'
Then release S1 and S2 means S1 =1 and s2 =1
Now either P1 or P2 can enter into the critical section
If P1 enter into the critical section
Release S0 means S0 =1
S0 =1 then P0 enter into the critical section
print '0'
Then P2 enter into the critical section
Release S0 means S0 =1
S0 =1 then P0 enter into the critical section
print '0'

Maximum no. of time 0 printed is thrice when execute in this order (p0 -> p1 -> p0 -> p2 -> p0)
So, At least twice will process P0 print ‘0’

Share via Whatsapp

Attention Computer Science Engineering (CSE) Students!

To make sure you are not studying endlessly, EduRev has designed Computer Science Engineering (CSE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Computer Science Engineering (CSE).

GATE Computer Science Engineering(CSE) 2025 Mock Test Series

Question Bank for GATE Computer Science Engineering

General Aptitude for GATE

Computer Networks

View all answers Start learning for free

< Previous Question Next Question >

Explore Courses for Computer Science Engineering (CSE) exam

Similar Computer Science Engineering (CSE) Doubts

The following program consists of 3 concurrent processes and 3 binary semaphores.The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.Q.How many times will process P0 print 0?

View answer

The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialised as S0 = 1, S1 = 0 and S2 = 0.How many times will process P0 print 0?

View answer

The above program consists of three concurrent processes and three binary semaphores. The semaphores are initialised as S0 = 1, S1 = 0, S2 = 0. How many times will process P0 print 0?

View answer

Three concurrent processes X, Y, and Z execute three different code segments that access and update certain shared variables. Process X executes the P operation (i.e., wait) on semaphores a, b and c; process Y executes the P operation on semaphores b, c and d; process Z executes the P operation on semaphores c, d, and a before entering the respective code segments. After completing the execution of its code segment, each process invokes the V operation (i.e., signal) on its three semaphores. All semaphores are binary semaphores initialized to one. Which one of the following represents a deadlockfree order of invoking the P operations by the processes?

View answer

Three concurrent processes X, Y, and Z execute three different code segments that access and update certain shared variables. Process X executes the P operation (i.e., wait) on semaphores a, b and c; process Y executes the P operation on semaphores b, c and d; process Z executes the P operation on semaphores c, d, and a before entering the respective code segments. After completing the execution of its code segment, each process invokes the V operation (i.e., signal) on its three semaphores. All semaphores are binary semaphores initialized to one. Which one of the following represents a deadlockfree order of invoking the P operations by the processes?

View answer

Top Courses for Computer Science Engineering (CSE)View all

GATE Computer Science Engineering(CSE) 2025 Mock Test Series

Question Bank for GATE Computer Science Engineering

General Aptitude for GATE

Computer Networks

Programming and Data Structures

Top Courses for Computer Science Engineering (CSE)

View all

The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.How many times will process P0 print ‘0’?a)At least twiceb)Exactly twicec)Exactly thriced)Exactly onceCorrect answer is option 'A'. Can you explain this answer?

Share with a Friend

Answer this doubt

Question Description
The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.How many times will process P0 print ‘0’?a)At least twiceb)Exactly twicec)Exactly thriced)Exactly onceCorrect answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.How many times will process P0 print ‘0’?a)At least twiceb)Exactly twicec)Exactly thriced)Exactly onceCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.How many times will process P0 print ‘0’?a)At least twiceb)Exactly twicec)Exactly thriced)Exactly onceCorrect answer is option 'A'. Can you explain this answer?.

Solutions for The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.How many times will process P0 print ‘0’?a)At least twiceb)Exactly twicec)Exactly thriced)Exactly onceCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Computer Science Engineering (CSE). Download more important topics, notes, lectures and mock test series for Computer Science Engineering (CSE) Exam by signing up for free.

Here you can find the meaning of The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.How many times will process P0 print ‘0’?a)At least twiceb)Exactly twicec)Exactly thriced)Exactly onceCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.How many times will process P0 print ‘0’?a)At least twiceb)Exactly twicec)Exactly thriced)Exactly onceCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.How many times will process P0 print ‘0’?a)At least twiceb)Exactly twicec)Exactly thriced)Exactly onceCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.How many times will process P0 print ‘0’?a)At least twiceb)Exactly twicec)Exactly thriced)Exactly onceCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice The following program consists of 3 concurrent processes and 3 binary semaphores. The semaphores are initialized as S0 = 1, S1 = 0, S2 = 0.How many times will process P0 print ‘0’?a)At least twiceb)Exactly twicec)Exactly thriced)Exactly onceCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Computer Science Engineering (CSE) tests.

Explore Courses for Computer Science Engineering (CSE) exam