Nokia 4A0-106 Online Practice Questions and Exam Preparation

Nokia 4A0-106 Online Questions & Answers

• Question 201:

  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.
  D. 'as-override' should not be part of this configuration.

• Question 202:

  Which of the following statements about the control plane in Carrier Supporting Carrier (CSC) VPRN is FALSE?

  A. The customer carrier does not learn any network provider routes.
  B. The network provider must learn the customer carrier PE and CE system addresses.
  C. Routes exchanged between CSC-CE and CSC-PE are labeled.
  D. The customer carrier PE system addresses are populated in the CSC VRF.
  B. The network provider must learn the customer carrier PE and CE system addresses.

• Question 203:

  In a VPRN, which of the following are supported as PE-CE routing methods on the Alcatel-Lucent 7750 SR? (Choose four).

  A. Static
  B. RIP
  C. OSPF
  D. IS-IS
  E. MP-BGP
  F. BGP
  A. Static
  B. RIP
  C. OSPF
  F. BGP

• Question 204:

  Click the exhibit.

  

  A Carrier Supporting Carrier (CSC) VPRN is configured on an Alcatel-Lucent 7750 SR for a customer carrier offering VPRN services. Which of the following about this configuration is FALSE?

  A. In the CSC VPRN, configure an eBGP session between CSC-PE and CSC-CE and use the "advertise-label vpn-ipv4" CLI command to enable the advertisement of VPN-IPv4 routes.
  B. When the customer carrier uses the same autonomous system number in various sites, use the "loop-detect off" CLI command to disable the loop detection functionality on CSC-CE and PE routers.
  C. On the CSC-PE routers, use the "carrier-carrier-vpn" CLI command to configure the VPRN service as CSC.
  D. Configure an iBGP session between PE1 and PE2 and use the "family vpn-ipv4" CLI command to directly exchange end-customer routes learned from CE1 and CE2.
  A. In the CSC VPRN, configure an eBGP session between CSC-PE and CSC-CE and use the "advertise-label vpn-ipv4" CLI command to enable the advertisement of VPN-IPv4 routes.

• Question 205:

  Click the exhibit.

  

  The displayed output is from an ASBR supporting an inter-AS model A VPRN. Which of the following statements about this output is TRUE?

  A. The neighbor shown is an ASBR router.
  B. The address family between the peers should be VPN-IPv4 instead of IPv4.
  C. The neighbor address cannot be the interface address 10.3.4.4.
  D. The omitted AS number under "BGP summary" must be equal to 64496.
  A. The neighbor shown is an ASBR router.

• Question 206:

  Which of the following about inter-AS model A VPRN is FALSE?

  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.
  B. It is the most scalable of the Inter-AS models.

• Question 207:

  Which of the following statements is true regarding the Route Distinguisher? (Choose three)

  A. It is an 8 byte value containing 3 fields
  B. The Route Distinguisher must have the same value as the Route Target.
  C. The Administrator field contains either an AS number or an IP number
  D. To ensure uniqueness, Route Distinguishers are assigned by the IANA.
  E. The Route Distinguisher is not used if the customer addresses do not overlap
  F. The Assigned Number field must contain a public IP address
  A. It is an 8 byte value containing 3 fields
  B. The Route Distinguisher must have the same value as the Route Target.
  C. The Administrator field contains either an AS number or an IP number

• Question 208:

  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?

  

  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 label, swaps the BGP label and forwards the IP packet to ASBR2.
  C. ASBR2 swaps the BGP label and pushes an LDP transport label.
  D. PE2 pops all labels and forwards the unlabeled packet to its destination.
  B. ASBR1 pops the LDP label, swaps the BGP label and forwards the IP packet to ASBR2.