Which of the following messages does the BGP protocol support?

There is an existing network of router RI, router R, router R3, and router R4 The 4 routers are interconnected via an LN network. All 4 routers are equipped with basic oSPF. When you execute the command "displayosp" on router R2 f peer", router R2 and router R3 are discovered The status between is "2-way". So what conclusions can you draw from this output? Multiple choice questions).

What is the exact description of the SSM features?

What is the correct description of the scene shown in the following figure?

Because BGP is an EGP routing protocol, BGP routing policies can only be deployed between EBGP neighbors, and routing policies between IBGP neighbors are not valid.