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Operating System - Interview Questions and Answers for 'Deadlock' - 4 question(s) found - Order By Newest

Frequently asked to fresh graduates.
  Q1. What is a Deadlock ?Operating System
Anonymous
Ans. When two threads are waiting each other and cant precede the program is said to be deadlock.

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   Like         Discuss         Correct / Improve     java   threads   multi threading   operating system   deadlock  concurrency     Asked in 23 Companies      basic        frequent


 Q2. What are the four situations that are required for deadlock to happen ?Operating System2017-05-07 16:38:57

Ans. mutual exclusion i.e the resource is not shareable and hence a process should have exclusive access to it at a particular time

Hold and Wait i.e the process doesn't release all existing resources held by it before requesting for another one.

No preemption i.e noone can forcefully release a resource held by another process and the process should voluntarily release the resource held by it.

Circular Wait - For ex, P1 is waiting on resource to be released by P2, P2 is waiting on resource to be released by P3 and P3 is waiting on the resource to be released by P1

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   Like         Discuss         Correct / Improve     deadlock  process


 Q3. What is Livelock in relation to deadlock ?Operating System2017-05-07 16:40:25

Ans. Livelock is when two threads or processes get deadlocked because they try to perform the same action to come out of a potential deadlock.

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   Like         Discuss         Correct / Improve     livelock  deadlock]


 Q4. Write Java code that would cause deadlock ?Core Java2018-06-21 18:03:05

 This question was recently asked at 'Symantec'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     multithreading  threads  deadlock     Asked in 1 Companies      intermediate



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