单项选择题 Which IBM storage product is offering Easy Tier technology?（）

单项选择题 A customer has a very large number of physical Windows-based servers and no centralized storage. Which technology solution will help the customer to reduce the footprint of their existing server estate?（）

单项选择题 How many expansion frames can be attached to an IBM TS3500 model L23 or L53 base frame? （）