You are asked to design a large campus network that will be using multicast for data transport. Which feature should be enabled at the Layer 2 access edge for host-only ports?

PortFast causes an access port to bypass the 30-second STP listening and learning phases and go directly to forwarding state when a link comes up. In a multicast campus network this is critical because hosts must be able to transmit IGMP membership reports immediately upon connecting - delays caused by normal STP convergence prevent hosts from joining multicast groups in a timely manner.

BPDU guard is a security mechanism that error-disables a PortFast port if it receives a BPDU, protecting the STP topology from rogue switches - it does not affect how quickly a host port enters forwarding state or how multicast group membership is established.

PIM-SM (Protocol Independent Multicast - Sparse Mode) is a Layer 3 multicast routing protocol configured on routers and Layer 3 switch interfaces, not a Layer 2 feature applicable to host-only access edge ports.

PIM query interval is a timer that controls how frequently PIM hello messages are sent between routers to maintain PIM neighbor adjacencies - it is a Layer 3 routing parameter with no relevance to Layer 2 host-only access port configuration.