Which of the following is the MOST important consideration before making a change to a server？（）
A. Explore the ramification of the change before implementation.
B. Determine the service level agreement in place before implementation.
C. Review the equipment disposal procedures and policies before implementation.
D. Notify all staff members of the planned system outage before implementation.
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企业对政府的电子商务通常称为（）。
A. BtoC
BtoB
C. BtoG
D. CtoC
根据基金单位买卖方式的不同，基金可以分为（）。
A. 封闭型基金和开放型基金
B. 公司基金和契约性基金
C. 国内基金和国际基金
以下不是电子商务采购特点的是（）。
A. 公开性
B. 广泛性
C. 高成本
D. 高速度
An administrator attempts to install the latest security patches for an older server. When theadministrator runs the patch installer， the install fails. The administrator tries again， and the installer failsagain. Which of the following is the MOST likely reason for this？（）
A. The administrator improperly configured the virtual memory settings on the server.
B. The administrator is using incorrect patch switches for the install.
C. The administrator is trying to install security patches for software that is not installed.
D. The administrator is trying to install patches that require hard drive encryption on the server.
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