Which two objects can be placed in VRF ?

A console interface is a management port that does not participate in Layer 3 forwarding or routing, making it unsuitable for inclusion in a VRF.

Layer 3 subinterfaces can be directly associated with a VRF, which means that any traffic entering or exiting that specific logical interface will be routed within the isolated routing table and forwarding domain of that VRF.

Layer 2 subinterfaces (e.g., associated with VLANs) handle switching functions at Layer 2; while their associated Layer 3 Virtual Switch Interface (SVI) or routed port can be in a VRF, the Layer 2 subinterface itself is not directly placed in a VRF.

A Virtual Device Context (VDC) is a logical partitioning of a switch's resources; VRFs operate *within* a VDC, but a VDC itself is a container for VRFs, not an object placed inside a VRF.

Routing protocol instances, such as OSPF, EIGRP, or BGP, can be independently configured and run within the context of a VRF. This allows for separate routing adjacencies and routing information exchange for each VRF instance, ensuring traffic isolation.