Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}O...
Start Learning for Free
Consider:
P = { P1, P2,P3}
R = {R1, R2, R3, R4}
One instance of resource type R1 two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1, P2 is holding an instance of R1 one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.
P = { P1, P2,P3}
R = {R1, R2, R3, R4}
One instance of resource type R1 two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1, P2 is holding an instance of R1 one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.
- a)Deadlock will not occur
- b)Deadlock will occur
- c)All the instances of R4 are held by the processes
- d)All the instances of R2 are not allotted
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource t...
Dead lock can not occure since first P3 will complete then P2 then P1 will complete.
Most Upvoted Answer
Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource t...
Deadlock in Resource Allocation
Deadlock is a situation in which two or more processes are unable to proceed because each is waiting for one of the others to do something. In the context of resource allocation, deadlock occurs when two or more processes are waiting for resources that are held by other processes, resulting in a circular wait.
Given information
In this scenario, there are three processes P1, P2, and P3 and four resource types R1, R2, R3, and R4. The following information is given:
- One instance of resource type R1
- Two instances of resource type R2
- One instance of resource type R3
- Three instances of resource type R4
P1 is holding one instance of R2 and waiting for an instance R1, P2 is holding an instance of R1, one instance of R2, and waiting for an instance of R3, and P3 is holding an instance of R3.
Solution
To determine if deadlock will occur or not, we need to check for the four necessary conditions for deadlock:
1. Mutual Exclusion: Each resource is either currently allocated to exactly one process or it is available.
This condition is met in the given scenario as each resource is either allocated to one process or is available.
2. Hold and Wait: Processes currently holding resources can request additional resources.
This condition is also met in the given scenario as P1 is holding R2 and waiting for R1, and P2 is holding R1 and waiting for R3. P3 is also holding R3, but it is not waiting for any additional resources.
3. No Preemption: Resources cannot be taken away from a process unless the process releases them voluntarily.
This condition is met in the given scenario as resources cannot be preempted from any process.
4. Circular Wait: A cycle of processes exists in which each process holds one or more resources that are being requested by the next process in the cycle.
This condition is not met in the given scenario as there is no circular wait. P1 is waiting for R1, which is not held by any process, and P2 is waiting for R3, which is held by P3.
Therefore, based on the above analysis, we can conclude that deadlock will not occur in this scenario.
Deadlock is a situation in which two or more processes are unable to proceed because each is waiting for one of the others to do something. In the context of resource allocation, deadlock occurs when two or more processes are waiting for resources that are held by other processes, resulting in a circular wait.
Given information
In this scenario, there are three processes P1, P2, and P3 and four resource types R1, R2, R3, and R4. The following information is given:
- One instance of resource type R1
- Two instances of resource type R2
- One instance of resource type R3
- Three instances of resource type R4
P1 is holding one instance of R2 and waiting for an instance R1, P2 is holding an instance of R1, one instance of R2, and waiting for an instance of R3, and P3 is holding an instance of R3.
Solution
To determine if deadlock will occur or not, we need to check for the four necessary conditions for deadlock:
1. Mutual Exclusion: Each resource is either currently allocated to exactly one process or it is available.
This condition is met in the given scenario as each resource is either allocated to one process or is available.
2. Hold and Wait: Processes currently holding resources can request additional resources.
This condition is also met in the given scenario as P1 is holding R2 and waiting for R1, and P2 is holding R1 and waiting for R3. P3 is also holding R3, but it is not waiting for any additional resources.
3. No Preemption: Resources cannot be taken away from a process unless the process releases them voluntarily.
This condition is met in the given scenario as resources cannot be preempted from any process.
4. Circular Wait: A cycle of processes exists in which each process holds one or more resources that are being requested by the next process in the cycle.
This condition is not met in the given scenario as there is no circular wait. P1 is waiting for R1, which is not held by any process, and P2 is waiting for R3, which is held by P3.
Therefore, based on the above analysis, we can conclude that deadlock will not occur in this scenario.
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Similar Computer Science Engineering (CSE) Doubts
Top Courses for Computer Science Engineering (CSE)View all
Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect answer is option 'A'. Can you explain this answer?
Question Description
Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 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 Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect answer is option 'A'. Can you explain this answer?.
Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 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 Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect 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 Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Consider:P = { P1,P2,P3}R = {R1, R2, R3, R4}One instance of resource type R1two instances of resource type R2, one instances of resource type R3 and three instances of resource type R4. The situation is P1 is holding one instance of R2 and waiting for an instance R1,P2is holding an instance of R1one instance of R2 and waiting for an instance of R3 and P3 is holding an instance of R3.a)Deadlock will not occurb)Deadlock will occurc)All the instances of R4 are held by the processesd)All the instances of R2 are not allottedCorrect 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
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup