Which service on the StoreFront server is responsible for replication of user subscriptions?

Scenario: A large company recently acquired a smaller company. A Citrix Engineer needs to add more resources in the environment, so that all users can access the published resources.
The engineer has planned to add six more StoreFront servers to the existing StoreFront server group with four StoreFront servers.
The engineer found that the scalability declined after reaching the seventh StoreFront.
What should the engineer increase in the StoreFront server group to prevent issues in the scalability?

Scenario: A Citrix Engineer needs to integrate the current Citrix Gateway with the StoreFront servers. During the wizard setup, the engineer was asked to add two Secure Ticket Authority (STA) servers as Citrix leading practice for high availability.
The engineer should add two servers as STA servers to accomplish this.

Which three layers are stored in the storage repository of the Enterprise Layer Manager (ELM) Appliance?
(Choose three.)

Scenario: A Citrix Engineer is maintaining a Citrix Virtual Apps and Desktops environment and has deployed Workspace Environment Management (WEM) within the infrastructure to provide resources to users in their sessions. The engineer initially deployed a Network Printer and it is working correctly for all users in their sessions. Recently, the engineer added a second resource, a Network Share Drive, and users are reporting that it is never available in their sessions.
The engineer verified the Action for this Network Share Drive to ensure it is correctly configured, and the required Conditions are listed under the WEM Filters node. The Everyone group has already been added to the Assignments node within the WEM console.
What should the engineer enable from the Advanced Settings node to correct this issue?