1. Huawei HCIP-Datacom-Core Technology V1.0 Training Material.
Reference: Chapter "OSPF Implementation and Configuration"
Section "Configuring a Silent Interface".
Details: The official courseware states
"After an interface is configured as a silent interface
it can still advertise its direct routes
but does not send or receive OSPF packets." This directly supports that statement C is false
while B and D are true. It also implies A is true
as the route advertisement allows for reachability.
2. Huawei VRP Product Documentation.
Reference: CloudEngine S12700 V200R019C10 Command Reference
Section "OSPF Commands"
silent-interface command description.
Details: The official command reference documentation specifies: "The silent-interface command disables an interface from sending and receiving OSPF packets. The IP address of this interface can still be advertised in the OSPF network." This confirms that the network is advertised
making statement C incorrect.