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單項(xiàng)選擇題

An administrator is running proprietary server software that requires services to be reconfigure devery time the server is upgraded to the latest vendor version. 
Which of the following is the BEST solution to address this problem？（）

A. The current system configuration should be documented for future use.
B. Server diagramming and environmental topologies should be documented.
C. A copy of the latest pre-installation plan should be developed and utilized.
D. Vendor support should be contacted so that they can correct the issue.

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