In a hub-and-spoke topology, what are two advantages of enabling ADVPN on the IPsec overlays? (Choose two.)

Refer to the exhibits.
Exhibit A -

Exhibit B -

Exhibit A shows a site-to-site topology between two FortiGate devices: branch1_fgt and dc1_fgt. Exhibit B shows the system global and system settings configuration on dc1_fgt.
When branch1_client establishes a connection to dc1_host, the administrator observes that, on dc1_fgt, the reply traffic is routed over T_INET_0_0, even though T_INET_1_0 is the preferred member in the matching SD-WAN rule.
Based on the information shown in the exhibits, what configuration change must be made on dc1_fgt so dc1_fgt routes the reply traffic over T_INET_1_0?

Which components make up the secure SD-WAN solution?

Which CLI command do you use to perform real-time troubleshooting for ADVPN negotiation?

Which two statements reflect the benefits of implementing the ADVPN solution to replace conventional VPN topologies? (Choose two.)