What state will a BGP session move to immediately after the router sends a BGP Open message to its neighbor?

Which one of these statements regarding intraconfederation EBGP sessions is correct?

What does the BGP synchronization rule prevent?

The core routers within a transit AS are running both IBGP and IGP. The edge routers within the transit AS are using the next-hop-self option to establish the IBGP sessions. What can be implemented to improve the routing performance to all external prefixes?

The MPLS VPN provider is using a separate Internet VPN to provide Internet access to its MPLS VPN customers. Currently, all of its customers are not able to access the Internet. The partial provider’s CE-Internet router configuration is shown below. Based on the configuration, what could be the cause of the problem?

ip route 0.0.0.0 0.0.0.0 10.1.1.1

!

router bgp 51001
network 0.0.0.0
neighbor 10.2.2.2 remote-as 51002 ! PE neighbor router
neighbor 10.2.2.2 prefix-list test1 out
neighbor 10.3.3.3 remote-as 51001 ! Another Internet router
neighbor 10.3.3.3 prefix-list test2 out
!
ip prefix-list test2 permit 0.0.0.0/0
ip prefix-list test1 permit 0.0.0.0/0 ge 1

BGP is used as the CE-PE routing protocol in an MPLS VPN. The customer routes are successfully propagated from the CE router to the ingress PE router, but they are not showing up on the egress PE router. What is the most likely cause of the problem?

When configuring Internet access using a separate MPLS VPN, which three statements are correct? (Choose three.)

When configuring Internet access from a MPLS VPN using a separate subinterface, which two configurations are required on the PE router? (Choose two.)

Which configuration will enable the R1 router in the AS51003 sub-AS (member-AS) as a route reflector with neighbors 10.1.1.1 and 10.2.2.2 as its route-reflector clients?

Who should use private AS numbers?