A media customer has an IBM BladeCenter E with ten HS22 Blade server installed. Currently only one Ethernet port is available for each server. What is required to enable the second port on eachserver？（）
- A、Fiber Channel Switch Module
- B、Gb Ethernet expansion card
- C、Myrinet Cluster expansion card
- D、Ethernet Switch Module
正确答案:D
答案解析:有
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