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1) An environment that allows more than one program to access the same set of variable.
2) The ability of a program to "sleep" until it can have (access) a varible.
3) The ability of a program to block other programs from having (accessing) a variable.
Dead Lock example:
Program GoodGosh and GoshDarn both access variables A and B by "Locking" the variables, doing some processing, and then releasing the variables. Both variables have to be obtained and locked before further processing and unlocking can occur.
While processing, Program GoodGosh acquries a lock on variable A and then attempts to acqure a lock on Varable B. Before GoodGosh can acquire variable B, Program GoshDarn acqures a lock on variable B. GoodGosh want B and owns A. GoshDarn owns A and wants B. Neither can process further until the other releases a variable. Deadlock now exists.
Note: To prevent deadlocks, all modules/programs that access the same set of variables should always acquire the variables in the same order.
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When one variable increase while the other variable deacreases is a statement indicating an inverse relationship?
No. That condition is necessary but not sufficient.No. That condition is necessary but not sufficient.No. That condition is necessary but not sufficient.No. That condition is necessary but not sufficient.
What are the different method for handling deadlock?
deadlock handling by 2phase protocol
What is false deadlock?
the coordinator conculde incorrectly that a deadlock exist and kills some process --------------------------- Detecting a non existent deadlock in distributed system has been referred as false deadlock and it may occur due to communication delay.. ---->Ashok Paranjothi
What is deadlock on the x factor?
a tie
What condition is probably the most necessary for a monarch to gain power?
no
What is necessary condition for deadlock to occur?
1. Competition for non-sharable resources2. Resources requested on a partial basis3. An allocated resource can not be forcibly retrieved
What is the difference among deadlock avoidance detection and prevention?
Deadlock avoidance involves ensuring that the system never enters a deadlock state by using techniques like resource allocation strategies (e.g., Banker's algorithm) to ensure that resources are allocated in a way that avoids deadlock. Deadlock detection, on the other hand, involves periodically checking the system to see if a deadlock has occurred after it has happened. Deadlock prevention focuses on designing algorithms and protocols in a way that eliminates one of the conditions necessary for deadlock to occur, such as by ensuring that resources are requested in a specific order.
When one variable increase while the other variable deacreases is a statement indicating an inverse relationship?
No. That condition is necessary but not sufficient.No. That condition is necessary but not sufficient.No. That condition is necessary but not sufficient.No. That condition is necessary but not sufficient.
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 is an antonym for the word deadlock?
The antonym for deadlock is agreement.
When was Holy Deadlock created?
Holy Deadlock was created in 1934.
When was Deadlock - film - created?
Deadlock - film - was created in 1931.
When was Wedlock Deadlock created?
Wedlock Deadlock was created in 1947.
What are the release dates for House of Dreams - 2004 To Deadlock or Not to Deadlock 1-3?
House of Dreams - 2004 To Deadlock or Not to Deadlock 1-3 was released on: USA: 22 January 2004
What is the difference between deadlock prevention and deadlock avoidance?
DEADLOCK PREVENTION:Preventing deadlocks by constraining how requests for resources can be made in the system and how they are handled (system design).The goal is to ensure that at least one of the necessary conditions for deadlock can never hold.DEADLOCK AVOIDANCE:The system dynamically considers every request and decides whether it is safe to grant it at this point,The system requires additional apriori information regarding the overall potential use of each resource for each process.Allows more concurrency.
How many pages does Holy Deadlock have?
Holy Deadlock has 311 pages.
What are the different method for handling deadlock?
deadlock handling by 2phase protocol
