单项选择题

At which of the following times should the administrator refer to the HCL？（）

A. Prior to purchasing hardware
B. Before installation
C. When installing drivers
D. After installation

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单项选择题
Whichofthefollowingdisasterrecoverysitesrequirespowerandcablingtoberunbeforeitcanbe used？（）

A. Hot site
B. Cold site
C. Warm site
D. Failover site
单项选择题
Whichofthefollowingtechnologiescanprovidegeographicallybasedloadbalancingwithhigh availabilitybetweentwowebserverswithstaticcontent？（）

A. Multicast
B. Active/passive cluster
C. Active/active cluster
D. DNS round robin
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