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What are the methods for handling deadlocks?
The technique for handling the deadlocks are:
To make sure that deadlocks never occur, the system is able to use a deadlock prevention or deadlock prevention scheme. Deadlock prevention supplies a set of methods for ensuring that at least one of the necessary conditions cannot hold. Deadlock avoidance needs that the operating should be given advance information concerning with resources a process will request and use during its lifetime. If a system makes sure that a deadlock will never occur nor provides a mechanism for deadlock recovery and detection then we will reach a situation of deadlock but won't recognize what happened. To hold off the deadlock condition away from the system we must keep track of the resources each time, thus we will get the number of resources that are free and the resources that are being used and being requested.
The drawbacks of fixed partitioning are: The number of partitions are précised at system generation time limits the number of active processes in the system. For the re
Determine a policy that is not a valid page replacement policy? RU policy (Recurrently used) is not a valid page replacement policy.
What advantages are there to this two-level directory? Users are isolated from each other. Users have more freedom in choosing file names.
What is input output operation ?
Consider a scenario of post mailbox, there are two processes named sender S and receiver R. Both processes can communicate with each other by name along with message. You need to I
Page Fault Handling conditions like, where the copy on write bit of a page is set and that page is send by more than one process, the Kernel assign new page and copies the conten
Perform alpha-beta pruning on the following tree. Put an "X" over each node that is pruned. Put the final value next to all other nodes. Indicate which action MAX should take: to B
What is the use of FIFOs in client-server applications
explain about oprating system services and topics briefly
scattered resposibi;ity and authority -necessity of operation research
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