Which statement is valid regarding back-up of StoreFront Configuration?

How often should a Citrix Engineer backup the Citrix database, based on Citrix recommendations?

Scenario: A Citrix Engineer needs to use Citrix App Layering to create layered images for use with a Citrix Virtual Apps and Desktops environment.
The environment currently has the following (MCS) Machine Creation Services-provisioned images.
-Windows 10 Virtual Delivery Agent (VDA) machines with App A, App B, and App C installed
-Windows 10 VDA machines with App A and App B installed
Application A is a common app that is needed by all users. Application B is a time reporting app needed by all individual contributors, and Application C is a managerial app needed by executives, but restricted from use by everyone else.
The environment uses Citrix Hypervisor to host all VDA machines.
To meet the minimum requirements while reducing administrative effort, the engineer would need layered image(s), using.

A Citrix Engineer wants to setup multi-site configurations, grouping Citrix Virtual Apps and Desktops deployments that deliver the same desktop or application so that identical resources can be aggregated for users.
What are two considerations regarding resources that the engineer needs to consider before setting up multi-site configuration? (Choose two.)

Which component must a Citrix Engineer use to configure security settings on User Layer folders?