单项选择题 A customer has asked the System x Sales Specialist to provide a solution that meets the following requirements：   -- 4U rack-dense server   -- 4 quad-core processors  -- 32 GB of memory   -- 4 Internal SAS hard drives with RAID 5 support   -- Redundant Power Supplies  -- 7 PCI-E slots available   A competitor presented the customer with a solution comparable to a Dell PowerEdge 4-socket server.  Which of the following should the System x Sales Specialist present as an advantage over the competitor’s solution？ （）

单项选择题 It takes a comprehensive strategy to grow data center capabilities while containing power and cooling costs.  Which IBM thermal environment solution can best support this strategy with no effect on performance？ （）

单项选择题 Small， medium， and large businesses today are increasingly using "Green" products within their IT Environments.  What are the most significant factors propelling this change？（）