nokia 4a0-106 practice test

Nokia Virtual Private Routed Networks

Last exam update: Nov 27 ,2025
Page 1 out of 15. Viewing questions 1-15 out of 214

Question 1

In a VPRN the PE device is configured to run which of the following protocols? (Choose three.)

  • A. MP-BGP for exchanging customer routes with other PEs
  • B. A routing protocol for exchanging customer routes with the CE
  • C. MPLS for exchanging labels with other provider core devices
  • D. MPLS for exchanging labels with the CE devices
  • E. Targeted LDP for exchanging VPRN labels with other PE devices
  • F. A label signaling protocol for defining transport tunnels between PE and CE devices
Mark Question:
Answer:

A, B, C

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Question 2

Choose the answer that best completes the following sentence. The CE device is typically configured
with _________________.

  • A. A single routing protocol for exchanging routes with both the internal customer routers and with the PE
  • B. MP-BGP to exchange routes with the PE.
  • C. MPLS and a routing protocol for the exchange of labels and routes with the PE
  • D. MPLS for exchanging labels with other CE devices
  • E. A routing protocol for exchanging routes with the internal customer routers and a routing protocol for exchanging routes with the PE
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Answer:

E

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Question 3

Which of the following terms also correctly describes a Layer 3 VPN?(Choose three)

  • A. VPRN
  • B. BGP/MPLS VPN
  • C. VLL
  • D. VPLS
  • E. IP-VPN
  • F. ePipe
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Answer:

A, B, E

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Question 4

What are the main functions of a Layer 3 VPN? (Choose three).

  • A. Distributing customer routing information between sites
  • B. Forwarding customer data packets
  • C. Providing an integrated billing solution
  • D. Maintaining separation between distinct customer networks
  • E. Allowing the implementation of Layer 3 devices in the provider core
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Answer:

A, B, D

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Question 5

Which of the following statements are true regarding P devices in an MPLS VPRN? (Choose two.)

  • A. Participate in service provider core routing
  • B. P devices are not required to be MPLS enabled. MPLS is only required on the PE devices
  • C. Run a common routing protocol with the CE router
  • D. Must support MP-BGP
  • E. Do not have any connections to the CE
  • F. Must be aware of the VPRNs
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Answer:

A, E

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Question 6

What are the two primary problems the service provider must consider when providing traditional
Layer 3 VPN services using only a single common routing table in the provider core? (Choose two)

  • 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
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Answer:

B, D

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Question 7

When a Service Provider offers VPRN services to its customers, which of the following functions are
expected to be the responsibility of the Service Provider? (Choose three)

  • A. Distributing the customer generated labels between sites
  • B. Distributing the customer routing information between
  • C. Forwarding the customer originated data packets to the appropriate destination
  • D. Forwarding the provider originated data packets to the appropriate customer site
  • E. Providing secure layer 3 routing exchange between sites
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Answer:

B, C, E

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Question 8

In a traditional layer 3 VPN which of the following will be an issue when there is overlapping address
space between two customers? Choose the best answer.

  • A. There will be increased memory usage on the PE
  • B. There will be increased CPU utilization on the PE
  • C. The CE will reject the overlapping prefix
  • D. The PE will not recognize the prefixes as being different
  • E. There is no issue with overlapping address space in a traditional Layer 3 VPN
Mark Question:
Answer:

D

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Question 9

Complete the following statement. In a VPRN, the label signaled by RSVP-TE is used to
______________.

  • A. Identify the egress PE in the MPLS domain
  • B. Signal the egress VPRN ID
  • C. Identify the ingress PE in the MPLS domain
  • D. Transport route updates between PEs
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Answer:

A

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Question 10

Complete the following statement. In a VPRN, the label signaled by RSVP-TE is used to
______________.

  • A. Identify the egress PE in the MPLS domain
  • B. Signal the egress VPRN ID
  • C. Identify the ingress PE in the MPLS domain
  • D. Transport route updates between PEs
Mark Question:
Answer:

A

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Question 11

Complete the following statement. In a VPRN, the inner label is used to _______________.

  • A. Identify the customer network on the egress PE
  • B. Establish the LSPs between PE devices
  • C. Identify the egress PE in the MPLS domain
  • D. Identify the customer network on the ingress PE
Mark Question:
Answer:

A

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Question 12

Which of the following devices would typically have VRF instances?

  • A. Any CE device
  • B. Any PE device
  • C. Any P device
  • D. Any router in the service provider core
  • E. Any customer router
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Answer:

B

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Question 13

What operation is performed by a P device on the label signaled by MP-BGP when it receives a
labeled packet for a VPRN service?

  • A. It will label switch the packet based on this label
  • B. It will decrement the TTL and label switch the packet based on this label
  • C. It will SWAP the label for a new label and then label switch the packet
  • D. The P router does not perform any operation on this label
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Answer:

D

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Question 14

Which of the following statements is true? Choose the best answer.

  • A. A P router may forward customer packets to their destination without the presence of a route to that destination
  • B. The ingress PE router may forward customer packets to their destination without the presence of a route to that destination
  • C. The egress PE router may forward customer packets to their destination without the presence of a route to that destination
  • D. Any provider core router (P or PE) may forward customer packets to their destination without the presence of a route to that destination
Mark Question:
Answer:

A

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Question 15

Which protocol is used to exchange customer VPRN routes between PE devices?

  • A. OSPF
  • B. ISIS
  • C. MP-BGP
  • D. BGP
  • E. Targeted LDP
Mark Question:
Answer:

C

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