1-10 - Summary Challenge Flashcards
Match the following terminology with the best description:
Descriptions:
Provides only data transport across the service provider backbone.
Customer devices attach to this device.
Connects the customer site to the service provider network.
Connects a provider router and a customer router.
Terms:
Provider device
PE-CE link
Customer edge device
Provider edge device
Provides only data transport across the service provider backbone. == Provider device
Customer devices attach to this device. == Provider edge device
Connects the customer site to the service provider network. == Customer edge device
Connects a provider router and a customer router. == PE-CE link
Which well-known overlay Layer 3 VPN tunneling technology is simple to implement but provides no security?
A. IPsec
B. DMVPN
C. SSL
D.GRE
D
Which best describes MPLS VPNs?
A. Routes exchange between customer edge devices by using the MP-BGP routing algorithm.
B. PE routers exchange routes with CE routers by using separate routing tables.
C. Service provider core routers contain customer routing information.
D. CE routers label packets with MPLS labels, and PE use these labels.
B
What is true about the MPLS control plane?
A. It builds an RIB that is based on a routing protocol and uses an LDP to manage labels.
B. MPLS applications may not use different routing protocols and label exchange protocols.
C. You can use IS-IS and BGP directly between PE and PE routers.
D. MPLS applications all use different label-switching data (forwarding) planes.
A
Match the following VPN control plane terminology with the best description:
Descriptions:
Makes the customer prefixes unique within the entire MPLS domain.
Identifies a site that participates in more than one VPN.
Generated by the egress provider edge to identify the customer destination.
Contains an IP routing table that is analogous to the global IP routing table.
Terms:
route target
route distinguisher
VRF
VPN label
Makes the customer prefixes unique within the entire MPLS domain. == route distinguisher
Identifies a site that participates in more than one VPN. == route target
Generated by the egress provider edge to identify the customer destination. == VPN label
Contains an IP routing table that is analogous to the global IP routing table. == VRF
Which of the following is true about VPN labels?
A. In the per-VRF mode, a label generates for each prefix in the VRF.
B. In the per-customer edge mode, a unique VPN label is allocated for each PE router.
C. The VPN label is necessary as the outer label for the MPLS label switching.
D. The VPN label that the egress provider edge generates identifies the customer destination.
D
What is true about MPLS labels?
A. The labels insert between the Layer 2 and Layer 3 header.
B. MPLS is for use on specific media and Layer 2 encapsulation.
C. Usually multiple labels are assigned to a packet.
D. The outer labels separate packets at egress points.
A
