Which three statements about best practices for a campus QoS design for voice traffic are correct? $($Choose three.$)$

$1$P$1$Q$3$T queuing per the eight$-$class QoS model is not recommended for voice traffic at only the egress $($outbound$)$ direction of the switch port that is connected to endpoints like a Cisco IP Phone.

$1$P$1$Q$3$T queuing per the eight$-$class QoS model is recommended for voice traffic at both ingress and egress points of the switch port that is connected to endpoints like a Cisco IP Phone.

Classification, marking, and policing for voice traffic should be applied at the ingress point of the switch port that is connected to endpoints like a Cisco IP Phone.

Classification, marking, and policing for voice traffic should be applied at the egress point of the switch port that is connected to endpoints like a Cisco IP Phone.

Voice traffic that is received at an access layer switch port should be trusted with CoS settings.

Voice traffic that is received at an access layer switch port should be untrusted.