单项选择题
A.fixed size
B.differencing
C.dynamically expanding
D.linked to a physical hard disk
单项选择题 Rate your level of proficiency with managing a virtual desktop infrastructure (VDI) environment,including configuring user state virtualization, and managing virtual desktops remotely.（）
单项选择题 Rate your level of proficiency with deploying and managing an application virtualization environment,including preparing virtual applications; and installing, configuring and managing App - V environments.（）
单项选择题 Rate your level of proficiency with deploying and managing a presentation virtualization environment, including preparing and managing remote applications, accessing published applications, and configuring client settings to access virtualized desktops.（）