Nokia Nokia Certifications 4A0-104 Questions & Answers

• Question 41:

  Which of the following must be configured when configuring an E-pipe service? (Choose four.)

  A. Configuring an E-pipe service with a customer ID

  B. Defining a SAP or SAPs.

  C. Binding to an SDP if it is a distributed service.

  D. Enabling the service using the no shutdown command.

  E. Creating and assigning an IP filter to the SAP.

  F. Configuring QoS parameters

  Correct Answer: ABCD

• Question 42:

  Click on the exhibit button below.

  

  Which of the following is the correct configuration on 6VPE1 for a BGP peering session with CE1?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

• Question 43:

  Click on the exhibit button below.

  

  Which of the following is the correct configuration for an MP-BGP session on 6VPE1?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

• Question 44:

  Which of the following steps is mandatory when enabling an MP-BGP session between PE routers in a VPRN?

  A. Configure an autonomous system number in the global context.

  B. Configure a BGP group and peer parameters.

  C. Configure a VPN-IPv4 address family.

  D. All of the above steps are mandatory.

  E. None of the above steps are mandatory.

  Correct Answer: D

• Question 45:

  Which of the following statements is TRUE concerning a VPRN data plane flow?

  A. A data packet will receive a service label at the CE and a transport label at the ingress PE.

  B. A data packet intended for a remote CE will have its service label swapped at each P router along the path towards the egress PE.

  C. At the egress PE, the transport label will be popped and the data packet forwarded with the service label.

  D. The service label is popped by the remote CE. The unlabeled packet is forwarded based on the longest match lookup algorithm in the VRF.

  E. All of the above statements are false.

  F. All of the above statements are true.

  Correct Answer: E

• Question 46:

  Click on the exhibit button below.

  

  If CE1 and PE1 use BGP to exchange routing information and CE2 and PE2 use static routing to forward traffic to and from the VPRN, which of the following statements is considered TRUE?

  A. An export policy is required on PE1 to advertise routes to CE1.

  B. An export policy is not required on PE2 to advertise routes to CE2.

  C. An export policy is not required to advertise routes between PE routers

  D. All of the above statements are true

  E. All of the above statements are false

  Correct Answer: D

• Question 47:

  Which of the following statements best describes a route target?

  A. A route target is a BGP extended community used to identify the VRF table for a prefix at the receiving PE

  B. A route target is a mechanism from which VPRN controls the distribution of VPN routing information.

  C. Route target attributes are earned in a MP-BGP as attributes of the route.

  D. A route target is used by the PE router to identify the VRF that a VPN-lPv4 prefix is associated with.

  E. All of the above statements describe a route target

  F. None of the above statements describe a route target

  Correct Answer: E

• Question 48:

  Which of the following statements is NOT a valid reason to use MP-BGP as a routing protocol to transport VPRN routes?

  A. The number of VPRN routes can become very large. MP-BGP can support a very large number of routes.

  B. MP-BGP can carry routing information for a number of different address families.

  C. MP-BGP is designed to exchange information between routers that are not directly connected. This feature keeps VPRN routing information out of P-routers.

  D. MP-BGP can carry additional information attached to a route as an optional BGP attribute.

  E. All of the above statements are valid reasons for using MP-BGP as a VPRN routing protocol.

  Correct Answer: E

• Question 49:

  Click on the exhibit button below.

  

  Is a routing policy required on PE1 to advertise a CE1's system interface to PE2?

  A. Yes. A routing policy is required to advertise routes between PE routers in a VPRN

  B. No. A routing policy is not required; the default behavior on the Nokia 7750 SR is to advertise all VPRN routes between PE routers.

  C. A routing policy is required only when BGP is used as the PE-CE routing protocol, as shown in the exhibit.

  D. A CE1 system interface can not be advertised to PE2 since the CE routers are not aware of the VPRN.

  Correct Answer: B

• Question 50:

  Which of the following statements best describes the purpose of an MP-BGP in a VPRN?

  A. Routes from different customers with the same IPv4 address prefix are treated as equivalents by MPBGP.

  B. Nokia 7750 SR routers support MP-BGP for VPN label signaling in a VPRN service only if LDP is used for LSP signaling.

  C. The multi-protocol nature of MP-BGP allows VPRN routes to be distributed within the provider core network as IPv4 routes.

  D. MP-BGP is an enhanced version of BGP that can carry a service label, a tranpot label, and customer route prefixes.

  E. None of the above statements describe the use of an MP-BGP in a VPRN.

  F. All of the above statements describe the use of an MP-BGP in a VPRN.

  Correct Answer: E