Exam 1Y0-312 topic 1 question 119 discussion

Actual exam question from Citrix's 1Y0-312

Question #: 119
Topic #: 1

Scenario: A Citrix Engineer is maintaining a Citrix Virtual Apps and Desktops environment. The engineer recently deployed Citrix App Layering for improved image management with Machine Creation Services (MCS). The infrastructure requires various 32-bit and 64-bit operating system platforms.
Which three considerations does the engineer need to be aware of when creating various OS Layers for the company infrastructure? (Choose three.)

A. Application and Platform Layers are directly tied to the operating system layer on which they were created.
B. The ELM Repository storage maintains a maximum limit of 10 OS Layers that can be built and maintained on it at any given time.
C. Before an OS version or layer can be deleted from the Citrix App Layering Management console, it must first NOT be in use by an existing template.
D. The engineer needs a unique layer for each OS build created.
E. The engineer does NOT need to create a unique OS Layer for 32-bit and 64-bit versions of the same OS type.
F. When preparing the OS Layer, the engineer should NOT include any hypervisor tools or utilities within the OS Layer.