Question 1

Click the exhibit.

Assuming the network is IPv6 only, which of the following configurations on the Alcatel-Lucent

7750 SR router A can establish an IPv6 BGP session to router B?

Options :

A :

B :

C :

D :

Answer: A

Question 2

For the Carrier supporting Carrier (CSC) VPRN, which routes are advertised between CSC-PE1 and SCS-PE2?

Options :

A : BGP IPv4 routes for all PE system addresses in AS 5000.

B : VPN-IPv4 routes for all PE system addresses in AS 5000.

C : BGP labeled IPv4 routes for all PE system addresses in AS 5000

D : LDP labeled routes for all PE system addresses in AS 5000.

Answer: C

Question 3

Which service component in the data plane uniquely identifies a VPLS to the far end PE node?

Options :

A : SDP id

B : Service ID

C : VC Label

D : Tunnel Label

E : Customer id

Answer: C

Question 4

Click the exhibit.

For the inter-AS model C VPRN, which of the following is FALSE when an IP packet is sent from 192.1.1.1 to 192.2.1.1?

Options :

A : PE1 pushes three labels on the IP packet: a VPN label, a BGP label, and an LDP transport label.

B : ASBR1 pops the LDP and BGP labels and swaps the VPN label.

C : ASBR2 pops the BGP label and pushes an LDP transport label.

D : PE2 pops two labels and forwards the unlabeled packet to its destination.

Answer: B

Question 5

Which of the following are true when ports are configured with the IEEE 802.3ah Loopback Control feature? (Choose 3)

Options :

A : The loopback control PDU instructs the remote port to enter loopback mode.

B : Putting a port in loopback does not affect customer data flow

C : Both ports must rediscover the OAM capabilities of each other once the port is put back into service.

D : Both ports must still send Information PDUs to avoid going back to discovery mode.

E : When a port is in loopback mode, service mirroring will still work if it is a mirror-source or mirror-destination.

F : All packets, except for information PDUs, are looped back.

Answer: A,D

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