Test Online Free Alcatel Lucent 4A0-106 Exam Questions and Answers

In the output from an Nokia 7750 SR shown below, what does the highlighted text represent?

• A. The LDP identifier
• B. The Service identifier
• C. The Route Target
• D. The Route Distinguisher
• E. The tunnel label

Show Answer

• A. By using the MED attribute to carry the OSPF metric.
• B. By defining Extended Communities for use as the Route Target
• C. By using the Cluster List attribute to carry the network prefix
• D. By defining support for the VPN-IPv4 address family
• E. By adding an additional field to the BGP Update to carry the VPRN label

Show Answer

Click the exhibit.



For the Carrier Supporting Carrier (CSC) VPRN, which routes are advertised between CSC-CE1 andCSC-PE1?

• A. VPN-IPv4 routes for all PE system addresses in AS 1000
• B. BGP labeled IPv4 routes for all PE system addresses in AS 1000
• C. VPN-IPv4 routes for all PE system addresses in AS 5000
• D. BGP labeled IPv4 routes for all PE system addresses in AS 5000

Show Answer

Click the exhibit.



Based on the VPRN aggregate route configuration, which routes are advertised to CE2?

• A. 172.12.10.0/24, 172.12.20.0/24 and 172.0.0.0/16
• B. 172.12.0.0/16 only
• C. 172.12.10.0/24 and 172.12.20.0/24
• D. 172.0.0.0/16 only

Show Answer

• A. Memory exhaustion in the provider core
• B. Route leaking between the customer networks
• C. CPU utilization for route processing
• D. Unwanted packet forwarding between customer networks

Show Answer

Click the exhibit.



The AS-override method is used to prevent BGP loops in the blue customer VPRN.
Which statement about the configuration is TRUE?

• A. the configuration is complete and correct.
• B. 'as-override' should be configured under the BGP context.
• C. 'as-override' should be configured under the group context.
• D. 'as-override' should not be part of this configuration.

Show Answer

• A. Targeted-LDP
• B. BGP
• C. MP-BGP
• D. RSVP-TE

Show Answer

Click the exhibit.



Routers RR1 and RR2 are configured as route reflectors. For the inter-AS model C VPRN, which of the following about the VPN-IPv4 route advertisement is FALSE?

• A. RR2 advertises the VPN-IPv4 route update of 192.2.1.0/27 to RR1
• B. RR1 advertises the VPN-IPv4 route update of 192.1.1.0/27 to RR2
• C. RR2 advertises the VPN-IPv4 route update of 192.1.1.0/27 to PE2
• D. PE1 advertises the VPN-IPv4 route update of 192.1.1.0/27 to RR1 and ASBRL

Show Answer

• A. A 64-bit Route Target followed by a 32-bit IPv4 address.
• B. A 64-bit Route Distinguisher followed by a 32-bit IPv4 address.
• C. A 32-bit Route Distinguisher followed by a 32-bit IPv4 address.
• D. A 32-bit Route Target followed by a 32-bit IPv4 address.

Show Answer

• A. It requires the configuration of back-to-back VRFs between ASBR routers in different autonomous systems
• B. It is the most scalable of the Inter-AS models.
• C. Most routers that support VPRN functionality support model A by default.
• D. It uses conventional eBGP to distribute unlabeled IPv4 routes between ASBR routers in different autonomous systems.

Show Answer

Click the exhibit.



When configuring the double lookup functionality, which configuration forces the global routing table to be consulted for any packet matching the VPRN default route?

• A. A
• B. B
• C. C
• D. D

Show Answer

• A. MP-eBGP exchange of VPN-IPv4 routes between ASBRs residing in different autonomous systems.
• B. MP-eBGP exchange of labeled IPv4 routes between route reflectors residing in different autonomous systems.
• C. A VRF-to-VRF connection at the autonomous system border routers.
• D. MP-eBGP exchange of VPN-IPv4 routes between PEs residing in different autonomous systems.

Show Answer

Which of the following commands may be used on an Nokia 7750 SR to display a network exported locally to BGP on the originating router? (Choose two)

• A. Show router bgp routes
• B. Show router bgp routes prefix <prefix>
• C. Show router bgp routes <prefix> self-originated
• D. Show router bgp routes <prefix> hunt
• E. Show router bgp neighbor <neighbor ip> advertised-routes

Show Answer

Which command will display the Route Target associated to a specific prefix on an Nokia 7750 SR?

• A. Show router bgp routes
• B. Show router bgp routes <prefix> detail
• C. Show router route-table
• D. Show router <service-id> route-table
• E. Either (b) or (d)

Show Answer

When configuring a VPRN service on an Nokia 7750 SR, where should the following policy be applied?

• A. On the CE under the RIP context
• B. On the PE under the BGP context
• C. On the PE under the RIP context
• D. On the CE under the BGP context
• E. This policy is not required

Show Answer