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Recent questions tagged deadlock-prevention-avoidance-detection

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GO Classes Test Series 2024 | Mock GATE | Test 14 | Question: 37
Suppose that an operating system provides two functions, block() which puts the calling process on the blocked queue, and wakeup(P) which moves process P to the ready queue if it is currently on the blocked queue. ... alternation printing ABABAB . A and B will always run forever with strick alternation printing BABABA . None of these

GO Classes asked in Operating System Feb 5

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UGC NET CSE | June 2008 | Part 2 | Question: 40
A computer has $6$ tape drives with ' $n$ ' processes competing for them. Each process may need two drives. For which values of ' $n$ ' is the system deadlock free? $1$ $2$ $3$ $6$

admin asked in Others Jan 6

by admin

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syncronization
Consider two processes P1, P2 that access shared binary semaphore variables – S1, S2, S3. Given below is the concurrent execution of these process – here deadlock is possible or not and why? Assume, initially S1 = 1, S2 = 1 and S3 = 1.

24aaaa23 asked in Operating System Oct 1, 2023

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deadlocks and threads operating system
A system has 5 process and 3 resources (A, B, C). The maximum count of resources are (10, 5, 7). Consider the following table of resource allocation. MAX (A B C) Allocated (A B C) P0 7 5 3 0 1 0 P1 3 2 2 2 0 0 P2 9 0 2 3 0 2 P3 2 ... these is a safe sequence in Question 13? P1, P3, P4 , P0, P2 only P2, P4, P3, P1, P0 only Both a and b None are safe sequences

roopkathaaa asked in Operating System Sep 2, 2023

1.4k views

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1 answer

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deadlocks and threads operating system
State true or false. Deadlock detection is possible using the allocation and request matrices alone. A way to recover from deadlock is to take away the resource from one of the processes or to kill the process itself. Banker's algorithm is ... deadlocks by analyzing the unsafe states. True, True, False False, True, True True, False, True False, True, False

roopkathaaa asked in Operating System Sep 2, 2023

806 views

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1 answer

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daedlocks and threads operating system
Suppose we want to synchronize two concurrent process P and Q using binary semaphore S and T. Process P: Process Q: while(1){ while(1){ W: Y: print 0'; print 1'; print 0'; print 1'; X: Z: } Synchronization statements can be inserted only at points W,X,Y,Z. Which of the ... S = T= 1 d. W : P(S) X : V(S) Y : P(T) Z: V(T) and initially S = 1 and T= 0

roopkathaaa asked in Operating System Sep 2, 2023

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deadlocks and threads operating system
Which of the following is false about User threads? User threads can switch fast since it does not involve kernel. User threads are lightweight since they do not require system calls. Kernel is not aware of the behavior of every user threads i.e. if it is blocking or runnable. None of these

roopkathaaa asked in Operating System Sep 2, 2023

260 views

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2 answers

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What's the standard technique to test if the algorithm satisfies mutual exclusion, progress and bounded waiting or not?

shivajikobardan asked in Operating System Jul 22, 2023

by shivajikobardan

744 views

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1 answer

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Operating System
How c came into picture.

Overflow04 asked in Operating System Dec 31, 2022

317 views

2 votes

2 answers

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Self Doubt
Can Safe state in DeadLock Avoidance Mechanism always guarantee No DeadLock??

Sunnidhya Roy asked in Operating System Dec 30, 2022

by Sunnidhya Roy

668 views

1 vote

1 answer

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Made Easy Mock -1

TusharKumar asked in Operating System Dec 29, 2022

401 views

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Made Easy Test Series Question on DeadLock
Q: Consider a system having 22 resources of same type. These resources are shared by 4 processes P,Q,R and S having peak demands of 3, 6, a and b. How many ordered pairs (a,b) are possible such that the system is deadlock free? According to me ... for a process be 0? In that case a-1 or b-1 will become -1 which will impact the inequality. So is this valid?

Sunnidhya Roy asked in Operating System Dec 27, 2022

by Sunnidhya Roy

498 views

0 votes

1 answer

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Deadlock prevention techniques | Wait-Die | Wound-Wait
MSQ Which among the following is/are TRUE regarding the deadlock prevention techniques: Wound-wait is premptive Wait-die is non-premptive Starvation is possible in wound-wait Starvation does not occur in wait-die

Souvik33 asked in Databases Dec 19, 2022

339 views

1 vote

2 answers

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#MadeEasy
consider a system having 22 resources of the same type. These resources are shared by 4 processes P, Q, R, and S having peak demands of 3,6, a, and b respectively. How many ordered pairs (a,b) are possible, such that the system is deadlock free?

Dknights asked in Operating System Dec 5, 2022

774 views

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1 answer

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Safe State | Deadlock Avoidance | Bankers Algorithm | OS | MSQ
MSQ Which of the following statements is/are TRUE? If safe state exists, deadlock can be avoided if resources are allocated properly If safe state exists, deadlock is never possible in future Unsafe state always leads to ... safe state exists, deadlock is possible, if resources are poorly allocated Unsafe state may lead to a deadlock

Souvik33 asked in Operating System Nov 19, 2022

966 views

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Consider a Diffie-Hellman scheme with a common prime q=11 and a primitive root a=2. a. If user A as public key YA=9 what is as private key XA? b. If user B has public key YB= 3 what is the shared secret key K?

JustPakYt asked in Computer Networks Nov 13, 2022

1.2k views

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Recent questions tagged deadlock-prevention-avoidance-detection