Which Citrix component acts as Secure Ticket Authority (STA) in a Citrix Virtual Apps and Desktops environment?

A user calls the help desk and states that launching a pooled random desktop takes as long as five minutes.
Which Citrix Director report can a Citrix Administrator review to find out what might be causing the delay?

On which two components must the Secure Ticket Authority (STA) server locations be configured if a Citrix Administrator wants to configure secure external access to a Citrix Virtual Apps and Desktops Site? (Choose two.)

A Citrix Administrator is configuring a Citrix Virtual Desktops Site for use with a mirrored SQL Server database.
Which collation sequence should the administrator use when creating an empty database on the principal SQL Server?

Which scenario will cause automatic high availability (HA) synchronization to fail?