题目
Integrated Computer Systems (082025-NRL)
匹配题
Match each deadlock recovery method with its corresponding trade-off. (6 marks) 1: Process Termination ____ 2: Resource Preemption ____ 3: Ignore Deadlock ____
选项
A.Needs regular monitoring, which adds computational cost
B.Simplifies system design but may reduce throughput
C.May cause process starvation if the same process is always rolled back
D.System may freeze or halt
E.Requires saving and restoring system states, which increases overhead
F.Can lead to loss of progress and wasted CPU time
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标准答案
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思路分析
The question asks to match each deadlock recovery method with its corresponding trade-off. We have three methods and six potential trade-offs to consider.
Option 1: Process Termination. This method stops one or more deadlocked processes to break the cycle. The principal downside is the loss of any progress those terminated processes had made and the wasted CPU time spent on their computation up to termination. This aligns with the trade-off: 'Can lead to loss of progress and wasted CPU time.' Note that while termination may indirectly affect throughput, the explicit stated conseque......Login to view full explanation登录即可查看完整答案
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Match each deadlock recovery method with its corresponding trade-off. (6 marks) 1: Ignore Deadlock ____ 2: Process Termination ____ 3: Resource Preemption ____
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Question at position 3 A system can recover from a deadlock by:Preempting some resources from one or more of the deadlocked threads.Aborting all deadlocked processes.Aborting one process at a time until the deadlock cycle is eliminated.
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