Which command can a Citrix Engineer use to get information about a Citrix Virtual Apps and Desktops setup?

Which two statements are valid for Enterprise Layer Manager (ELM) storage? (Choose two.)

Scenario: A Citrix Engineer is maintaining a Citrix Virtual Apps and Desktops environment. The engineer has recently deployed a new Workspace Environment Management (WEM) configuration to help improve the performance of published applications and desktops.
In which two ways can the new WEM deployment benefit the user experience? (Choose two.)

Scenario: A Citrix Engineer recently took over a multi-zone environment with one Primary zone in New York and two Secondary zones in San Francisco and Orlando respectively. The New York zone has two Delivery Controllers, San Francisco has one Delivery Controller, and the Orlando zone has two Delivery Controllers.
The engineer received alerts that the Orlando zone Delivery Controllers were down.
Where will the Orlando zone Virtual Delivery Agent (VDA) machines register?

Which two statements are true when Citrix App Layering is used with Citrix Virtual Apps and Desktops? (Choose two.)