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What are the various strategies are used to handle deadlock and what is centralized and distributed deadlock detection and prevention?
There are four strategies of dealing with deadlock problem:1. The Ostrich ApproachJust ignore the deadlock problem altogether.2. Deadlock Detection and RecoveryDetect deadlock and, when it occurs, take steps to recover.3. Deadlock AvoidanceAvoid deadlock by careful resource scheduling.4. Deadlock PreventionPrevent deadlock by resource scheduling so as to negate at least one of the four conditions.
What are the main limitations to the resource allocation graph used in deadlock detection. explain?
time Stamp
What types of statement can be used to explain the steps of a proof?
The corollaries types of statement is what is used to explain the steps of a proof.
What types of the statement can be used to explain the steps of a proof?
The corollaries types of statement is what is used to explain the steps of a proof.
What is the difference between deadlock preventation and dead lock detection?
The difference is exactly what you have just stated: deadlock prevention is used to stop deadlocks before they happen (to prevent them), while deadlock detection is used to figure out when a process has deadlocked (to detect it).
Which types of statements can justify the steps of proof?
Theorems, definitions, corollaries, and postulates
What is safety algorithms in operating system?
safety algorithm is algo which is used for deadlock avoidance.
Explain the steps used to divide a polynomial by a polynomial?
You can find explanation and examples here: http://en.wikipedia.org/wiki/Polynomial_division
The policy used by the government to encourage recovery and upswing in the economy?
This is the business cycle. Government steps in to ensure that businesses stay in an upswing so that the economy does not collapse.
What is Advantages and disadvantages deadlock avoidance?
Deadlock avoidance ensures that a system never enters a deadlock state, allowing for continuous operation and resource utilization. Its advantages include increased system reliability and improved resource management, as it proactively prevents potential deadlock scenarios. However, it can also lead to lower resource utilization and increased system complexity, as it requires careful monitoring and management of resource allocation and process states. Additionally, the algorithms used for deadlock avoidance can introduce overhead, potentially affecting overall system performance.
Which of the following types of statement cannot be used to explain the steps of a proof Check all that apply?
Conjecture and Guess.
What are the differences between deadlock avoidance and deadlock prevention in operating systems?
Deadlock Prevention: o Preventing deadlocks by constraining how requests for resources can be made in the system and how they are handled (system design). o The goal is to ensure that at least one of the necessary conditions for deadlock can never hold. * Deadlock Avoidance: o The system dynamically considers every request and decides whether it is safe to grant it at this point, o The system requires additional apriori information regarding the overall potential use of each resource for each process. o Allows more concurrency. Similar to the difference between a traffic light and a police officer directing traffic. * Deadlock deduction:- Often, neither avoidance nor deadlock prevention may be used. Instead deadlock detection and process restart are used by employing an algorithm that tracks resource allocation and process states, and rolls back and restarts one or more of the processes in order to remove the deadlock. Detecting a deadlock that has already occurred is easily possible since the resources that each process has locked and/or currently requested are known to the resource scheduler or OS. Detecting the possibility of a deadlock before it occurs is much more difficult and is, in fact, generally undecidable, because the halting problem can be rephrased as a deadlock scenario. However, in specific environments, using specific means of locking resources, deadlock detection may be decidable. In the general case, it is not possible to distinguish between algorithms that are merely waiting for a very unlikely set of circumstances to occur and algorithms that will never finish because of deadlock. Deadlock detection techniques include, but is not limited to, Model checking. This approach constructs a Finite State-model on which it performs a progress analysis and finds all possible terminal sets in the model. These then each represent a deadlock.
