UiPath robot license and capabilities

  1. Can a Back Office robot license run multiple process simultaneously in one machine where the license installed unlike front office robot where only one process can run at a time?

In other words,
If I need to schedule and run 3 processes at 9 AM in the morning (to be started concurrently) is it possible to run using one back office robot license?

  1. Can anyone explain the difference between Node Locked and Authorized User license for a robot?