Which two features and functions are supported when using an MX appliance in Passthrough mode?

These are the two features and functions that are supported when using an MX appliance in Passthrough mode. According to the [MX Addressing and VLANs] article, Passthrough mode allows the MX appliance to act as a layer 2 bridge, passing traffic between its LAN and WAN ports without performing any routing or address translation. However, some features such as intrusion prevention and site-to-site VPN are still available in this mode.