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单项选择题 An administrator is looking to apply a new service pack for an OS on several systems that run business critical applications for a large international finance corporation.  Which of the following should the administrator do FIRST?()

A、 Deploy the service pack to a single department within the corporation. 

B、 Upgrade the system with requirements for that service pack. 

C、 Deploy the service pack to a non-critical application server. 

D、 Submit a change control for the service pack deployment.

  • D
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