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单选题
A data center has had a power outage. Which of the following should the administrator do FIRST once the power is restored?()
A

Identify which systems are the most critical and bring them up by level of importance.

B

Retrieve the latest backup tapes for immediate system restore using the GFS rotation.

C

Identify the least critical systems and then power those systems on first.

D

Determine the cause of the power outage and install UPS systems to prevent its reoccurrence.


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