
Ch08-Deadlock
Authored by 徐leo 徐leo
Computers
University
Used 1+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Deadlock成立的特徵為何(複選)?
Mutual exclusion
Hold and wait
No preemption
Circular wait
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Deadlock成立的要件中,「一次只有一個Thread/process 可以使用資源」是指?
Mutual exclusion
Hold and wait
No preemption
Circular wait
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Deadlock成立的要件中,「被占用的資源不能被搶奪使用,必須等到使用該資源的thread/process釋放」是指?
Mutual exclusion
Hold and wait
No preemption
Circular wait
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Deadlock成立的要件中,「必定有一個Thread/process 已經占用一個資源,且它同時等待另一個已被占用的資源」是指?
Mutual exclusion
Hold and wait
No preemption
Circular wait
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Deadlock成立的要件中,「Threads 集合元素存在T0->T1 -> T2 ->Tn->T0 關係」是指?
Mutual exclusion
Hold and wait
No preemption
Circular wait
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下描述何者有錯?
沒有發生Circular wait,就一定沒有Deadlock
如果有Circular wait發生,若每個資源只有一個instance,一定會發生deadlock
如果有Circular wait發生,若每個資源有一個以上instance,一定會發生deadlock
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列何者為處理deadlock的方法?(複選)
預防 ( deadlock prevention )
避免 ( deadlock avoidance )
偵測 deadlock後去復原
忽略 deadlock發生
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