What is the likely problem if PC1 cannot connect to PC2 after configuring OSPFv2 on two routers?

The scenario involves a situation where connectivity issues arise between two PCs after OSPFv2 has been configured on the routers. If the answer identifies that the likely problem is that the interface Fa0/0 is not activated for OSPFv2, this is significant because OSPF relies on interfaces being properly included in the OSPF configuration to exchange routing information and establish neighbor relationships.

If the specific interface connected to the network segment where PC1 or PC2 resides is not activated (or included) in the OSPF process, OSPF packets will not be sent or received over that interface. Therefore, the routers will not learn about each other's networks, leading to the situation where devices cannot communicate with each other because they are unaware of the routes to reach each other.

In contrast, while a faulty Ethernet cable could prevent connectivity, it would likely impact all traffic, not just OSPF-specific routing. An incorrect OSPF area can also affect routing, but the routers might still communicate if they are set to the same area; it's the interface configuration that concretely defines the participation in the OSPF process. Lastly, OSPF is typically not directly configured on end-host devices like PCs, but rather on routers,