4A0-105 無料問題集「Alcatel-Lucent Virtual Private LAN Services」

（A）FALSE

（B）TRUE

（A）It is not important to use send-flush-on-failure as Active/Standby signalling automatically converges the FDB in all VPLS instances

（B）It discards all packets in the queue and sends icmp-discad messages to the sender. The packets are re-transmitted resulting in no loss of data.

（C）On failure, the PE sends an LDP flush-all-from-me message to all PE devices in the VPLS. This speeds convergence to the new topology.

（D）It flushes the local FDB speeding recovery

（A）R4 and R3 will remain reachable.

（B）Only R4 will be reachable through the VPLS. B All devices will be reachable through the VPLS.

（C）No devices will be reachable.

（A）VPLS is a point-to-point service where CEs are presented with point-to-point virtual circuits.

（B）VPLS provides L2 VPN services to CEs.

（C）CEs that are members of the same VPLS service instance communicate with each other as if they are connected via a bridged LAN.

（D）VPLS is a bridged LAN service.

（A）To allow all ports on the root switch to become alternate ports.

（B）This is not a best practice. Any switch can be used as the root bridge.

（C）So that you know which links will be active in your network.

（D）To prevent a new switch from becoming root when added to the network.

（A）STP is not required to break the loop because of split-horizon rules.

（B）If the traffic is primarily Unicast, a full mesh of SDPs is a simple and efficient design.

（C）STP can be used to break the loop.

（D）If the traffic is primarily multicast, a full mesh of SDPs is a simple and efficient design.

（A）MAC aggregation

（B）H-VPLS

（C）IEEE 802.lag

（D）MAC-in-MAC

（A）The CE must be an Alcatel-Lucent 7750 SR.

（B）The CE must be configured with LACP in active mode.

（C）There is no configuration required on the CE.

（D）The CE must be configured with an MC-LAG to both PE devices.

（A）3

（B）1

（C）2

（D）0

（A）Information.

（B）Variable request.

（C）Variable response.

（D）Event notification.

（E）Loopback control.