Refer to the exhibit. Which two points in the network must an engineer configure the ports for explicit trust when using a DiffServ model?

Points B and E are typically internal network links or other access ports, but without more context on device types, they are less definitively 'explicit trust' points than F and G for legitimate QoS sources.

Ports F and G are typically configured for explicit trust when they connect to devices capable of legitimately marking traffic, such as IP phones, video conferencing endpoints, or servers that apply specific QoS markings, ensuring their traffic priorities are honored across the network.

Points A and D typically represent ports connecting to general user devices (like PCs), which are usually configured as untrusted to prevent users from arbitrarily prioritizing their own traffic.

Point C is typically an internal network link, which is generally trusted, while point D is an untrusted access port, making this combination incorrect for explicit trust.