Which files are managed through the use of the file collection "HACMP_Files"？（）
A. The PowerHA Global OD
B. System networking files including /etc/hosts， /etc/inetd.conf and /etc/services
C. Security files including /etc/passwd， /etc/security/passwd， /etc/group and/etc/security/group
D. User configurable files including Application server start and stop scripts， custom pre and post notificationevents and application monitoring script
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常用于高速场合的凸轮机构的从动件形式是（）
A. 平底从动件
B. 尖顶从动件
C. 滚子从动件
D. 曲面从动件
《国家电网公司供电客户服务提供标准》规定，供电营业厅的服务人员包括哪些？
You manage your virtual environment by using Microsoft System Center Virtual Machine Manager （VMM） 2008 R2. You monitor the environment by using Microsoft System Center Operations Manager 2007 R2. You have three Windows Server 2008 R2 Hyper-V servers in a failover cluster. You need to ensure that all virtual machines （VMs） are distributed automatically across the host servers， and that the VMs will automatically fail over to the most appropriate host server. What should you do？（）
A. Configure network load balancing on the VMs.
B. Configure Performance and Resource Optimization （PRO） Tips for the VMs.
C. In VMM， create a host group. Move the three host servers into the host group.
D. Configure a Fiber Channel logical unit number （LUN） on a SAN device. Configure your VMs to store the configuration files on the Fiber Channel LUN
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