4A0-106 by Nokia Actual Free Exam Questions And Answers

Question 1

Click the exhibit.

For the Inter-AS model B VPRN, which of the route updates for prefix 192.168.1.0/27 is incorrect?

A. The route update sent from PE1.

B. The route update sent from ASBR1.

C. The route update sent from PE2.

D. The route update sent from ASBR2.

Discussion 0

Correct Answer: C Vote an answer

Question 2

Which of the following devices would typically have VRF instances?

A. Any CE device

B. Any customer router

C. Any router in the service provider core

D. Any PE device

E. Any P device

Discussion 0

Correct Answer: D Vote an answer

Question 3

VPN-IPv4 addressing is made unique by defining an address structure consisting of:

A. A 64-bit Route Distinguisher followed by a 32-bit IPv4 address.

B. A 32-bit Route Target followed by a 32-bit IPv4 address.

C. A 32-bit Route Distinguisher followed by a 32-bit IPv4 address.

D. A 64-bit Route Target followed by a 32-bit IPv4 address.

Discussion 0

Correct Answer: A Vote an answer

Question 4

A provider core consists of 4 PE and 2 P routers. A fully meshed VPRN service is configured on all 4 PEs, and MPLS LSP-based SDPs are used for the service configuration. How many SDPs must be bound to the VPRN service on each PE?

A. Two SDPs must be bound to the VPRN service on each PE.

B. Five SDPs must be bound to the VPRN service on each PE.

C. Twelve SDPs must be bound to the VPRN service on each PE.

D. Three SDPs must be bound to the VPRN service on each PE.

Discussion 0

Correct Answer: D Vote an answer

Question 5

Where are VPN-IPv4 addresses used in a VPRN?

A. In the routing updates exchanged from PE to PE

B. In all route tables of the VPRN control plane

C. In the routing updates exchanged from CE to PE

D. In the routing updates exchanged from P to PE

E. In customer packets as they traverse the provider core

Discussion 0

Correct Answer: A Vote an answer

Question 6

Click the exhibit.

The CLI command "remove-private" is configured on PE1 to eliminate BGP loops in the VPRN. For the displayed route, what is the value of the AS-Path field?

A. 64496 64512

B. 64512 64496

C. 64496

D. 64512

Discussion 0

Correct Answer: C Vote an answer

Question 7

Which of the following about BGP loops in a VPRN environment is TRUE?

A. The Nokia 7750 SR rejects routes containing AS_PATH loops by default.

B. Traditional BGP loop detection mechanisms are unable to detect a loop in a VPRN scenario.

C. When "remove-private" is configured at a PE, all routes received from the associated CE will have private AS numbers removed.

D. BGP loops are detected in a VPRN when the customer has separate sites using the same BGP autonomous system number.

Discussion 0

Correct Answer: D Vote an answer

Question 8

Click the exhibit.

An Nokia 7750 SR is to be configured as a core router that supports VPRNs using LDP as the transport protocol. Which of the following best describes this configuration?

A. This configuration is correct, but the interfaces must also be configured in the "configure router mpls" context.

B. This configuration is correct and complete.

C. This configuration is correct but Targeted-LDP is also required.

D. There is no configuration required for LDP in the core network.

Discussion 0

Correct Answer: B Vote an answer

Question 9

Which command is required in the blank line to complete the configuration shown below on an Nokia 7750 SR?

A. Sap 1/1/1 create

B. No shutdown

C. Neighbor 192.168.1.2

D. Sap 1/1/1 customer 10 create

Discussion 0

Correct Answer: A Vote an answer

Question 10

Click the exhibit.

For the inter-AS model C VPRN, how many labels does PE1 push on a data packet received from CE1 and destined to CE2?

A. 2

B. 4

C. 3

D. 1

Discussion 0

Correct Answer: C Vote an answer

Question 11

Click the exhibit.

For the inter-AS model B VPRN, which of the following protocols is used to advertise routes between PE1 and ASBRI?

A. MP-eBGP

B. iBGP

C. MP-iBGP

D. eBGP

Discussion 0

Correct Answer: C Vote an answer

Question 12

An advantage of using BGP as the PE-CE protocol is that route policies are no longer required to control the exchange of routes from BGP to MP-BGP.

A. False

B. True

Discussion 0

Correct Answer: A Vote an answer

Nokia Virtual Private Routed Networks - 4A0-106 Exam Practice Test

Contact Us

Useful Links

Latest Updated