题目
Integrated Computer Systems (082025-NRL)
匹配题
Match each deadlock recovery method with its corresponding trade-off. (10 marks) 1: Resource Preemption ____ 2: Process Termination ____ 3: Ignore Deadlock ____
选项
A.May cause process starvation if the same process is always rolled back
B.Simplifies system design but may reduce throughput
C.Can lead to loss of progress and wasted CPU time
D.Requires saving and restoring system states, which increases overhead
E.Needs regular monitoring, which adds computational cost
F.System may freeze or halt
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标准答案
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思路分析
Question restatement: Match each deadlock recovery method with its corresponding trade-off. We have three methods and a set of possible trade-offs.
Option-by-option analysis:
- Resource Preemption (1): The given correct pairing is 'May cause process starvation if the same process is always rolled back.' Preemption means the system can forcibly take resources away from a process to break a deadlock, which may lead to some processes repeatedly losing resources and thus starving if the same one keeps getting rolled back. This reflect......Login to view full explanation登录即可查看完整答案
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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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