No. You simply obtain a ticket upon entry for the parking option that you prefer (garage or open lot) and choose your parking space. However prepaid parking reservations are available to guarantee a space.
No. Even if parking in the open lot, it’s a quick 5-minute walk through the garage to the terminal. If parking in the garage, the elevators take you to the ground level to then proceed to the terminal. The other option when parking in the garage is to use the two bridges that connect the garage and terminal.