试题详情
- 单项选择题A web server has to be available all the time.It has its own redundant power source anduninterruptible power supply（UPS）.Which of the following actions will provide additional fault to lerance？（）
A、Add a second DVD drive
B、Add an extended runtime module（ERM） to the UPS
C、Configure automated system recovery（ASR）
D、Add a second NIC
- D
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