6-6 - Summary Challenge Flashcards
Which of the following statements is true about PE-to-CE connectivity?
A. You cannot configure the CE routers with a default route toward the PE routers.
B. Sites that are in the same VPN but in different VRFs cannot share the same PE-CE routing protocol.
C. To verify that the routes propagate back to the CE router, issue the show vrf ip route command on the remote CE router.
D. You can configure per-VRF routing protocols for Cisco IOS and IOS XE Software, but not for Cisco IOS XR Software.
B
Which of the following statements is true about PE-to-CE connectivity?
A. After you configure VRF instances and establish MP-EBGP connectivity between PE routers, you must configure routing between the PE and the attached CE routers.
B. You should group as few sites as possible into a VRF for performance reasons.
C. If the IPv4 routes do not show up in the routing tables of the remote CE router, then you must troubleshoot the CE-CE configuration.
D. Running multiple instances of OSPF will consume additional router resources.
D
Which of the following statements is true about PE-to-PE connectivity?
A. Using a route map that filters PE routes is a common configuration mistake.
B. If OSPFv2 is the chosen protocol for a PE-CE link that belongs to a particular VRF or VPN, the local CE router sends its OSPF routes to the remote CE router.
C. The service provider and the CE router exchange routes by using a routing protocol to which the service provider and customer jointly agree.
D. PE routes that the CE router receives must redistribute into MP-BGP.
C
Which of the following statements is true about PE-to-PE connectivity?
A. The MED attribute should not change in the MPLS VPN backbone if you use two-way route redistribution between the PE-CE routing protocol and BGP.
B. The VPNv4 routes that the CE router receives must insert into the proper VRF.
C. You should not use standard BGP route selection tools (weights or local preference) to influence BGP route selection.
D. The import of VPNv4 routes into VRFs is immediate.
A
What is true about using route reflectors in BGP?
A. Route reflectors modify the classic IBGP split-horizon rule.
B. The route reflector clients behave like traditional EBGP routers.
C. A router that acts as a route reflector requires no specific configuration.
D. The route reflector client becomes a concentration router with all IBGP sessions.
A
What is true about using route reflectors in BGP?
A. Although clients may have any number of IBGP peers, they may have EBGP sessions only with their route reflector.
B. Route reflector clusters can cause IBGP routing loops in redundant route reflector designs.
C. A route reflector router can reflect routes within multiple clusters.
D. To avoid introducing a single point of failure into the network, the route reflector functionality must be as redundant as the physical network.
D
What is true about using route reflectors in BGP?
A. A router cannot be a route reflector and a route reflector client at the same time.
B. Clients are configured with commands to be route reflector clients so they can have fewer IBGP sessions.
C. A route reflector client can have IBGP sessions to route reflectors that belong to different clusters.
D. A router that you configure to be a route reflector will still have ordinary IBGP sessions that are part of the full mesh.
D
