Which three security features can be implemented on PEs inside a Cisco IOS XR VPLS
environment? (Choose three.)

Which option describes what differentiates a U-PE from N-PE?

Which technology does an N-PE most likely use to pass traffic to the U-PE that is destined for the
access switch?

Which service can be used to extend the same broadcast domain across the WAN to multiple
customers?

A service provider wants to scale MAC address advertisements in its next generation E-LAN and
E-TREE designs. Which technology can be used in the service provider cloud to reach this goal?

Which method can be used to discover targeted LDP neighbors dynamically when configuring
VPLS between PE routers?

When using H-VPLS, the PE router may use an IRB interface. How many VLAN tags can be
processed by an IRB?

Which two protocols can be used for VPLS signaling on a Cisco IOS XR router? (Choose two.)

Which two MPLS QoS models described by RFC3270 are used for CE-PE QoS implementation?
(Choose two.)

A presale engineer is asked to advise about the various MPLS VPN designs to best fit the
customer requirements. Which two MPLS L2VPN features should be highlighted as advantages

over a MPLS L3VPN? (Choose two.)