单项选择题

Which of the following disaster recovery sites requires power and cabling to be run before it can be used？（）

A. Hot site
B. Cold site
C. Warm site
D. Failover site

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单项选择题

Which of the following technologies can provide geographically based load balancing with high availability between two web servers with static content？（）

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

单项选择题

When load balancing traffic between two web servers， which of the following technologies provides the LOWEST cost solution？（）

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

单项选择题

A server failed Thursday evening before the nightly backup. The backup scheme in place was fullbackups
every Sunday，incremental backups on Monday，Wednesday，and Friday，and differentialbackups on Tuesday，Thursday，and Saturday.
To fully restore the server，which of the following is theLEAST amount of backup sets required？（）

A. One
B. Two
C. Three
D. Four