4A0-106 Exam Dumps - Nokia Virtual Private Routed Networks

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Question # 9

For Carrier Supporting Carrier (CSC) VPRN, which of the following is NOT applicable to both types of customer carriers: BGP/MPLS service providers and Internet service providers?

eBGP is used for route and label exchange between CSC-CE and CSC-PE routers.

iBGP can be used to distribute routes between CSC-CE and PE routers.

MP-iBGP is used to advertise routes between the CSC-PE routers.

MP-iBGP is used to advertise end-customer and Internet routes directly between the PE routers.

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Question # 10

What is the purpose of the Route Distinguisher?

It defines the VPN membership

It defines which routes are imported into the vrf

It defines which routes are exported from the vrf

It is used to make IPv4 addresses unique

It is used as the VPN label

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Question # 11

Click the exhibit.

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

VPN-IPv4 routes for all PE system addresses in AS 1000

BGP labeled IPv4 routes for all PE system addresses in AS 1000

VPN-IPv4 routes for all PE system addresses in AS 5000

BGP labeled IPv4 routes for all PE system addresses in AS 5000

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Question # 12

Click the exhibit.

An extranet VPRN is configured on Nokia 7750 SRs. On which router(s) should the displayed configuration be applied?

Router R1

Router R2

Routers R1 and R2

Router R3

Router R4

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Question # 13

Which of the following is a benefit of a hub and spoke VPRN topology?

Reduced number of VPN tunnels that need to be managed.

Optimal routing between all sites.

Limited configuration required on the hub PE device.

Site to site redundancy support.

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Question # 14

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

It is an 8 byte value containing 3 fields

The Route Distinguisher must have the same value as the Route Target.

The Administrator field contains either an AS number or an IP number

To ensure uniqueness, Route Distinguishers are assigned by the IANA.

The Route Distinguisher is not used if the customer addresses do not overlap

The Assigned Number field must contain a public IP address

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Question # 15

You are configuring a VPLS spoke termination to a VPRN on an Nokia 7750 SR. If LDP is used for all transport tunnels, what type of sessions are established by the VPRN PE router that is configured with the spoke termination?

T-LDP and LDP sessions with the other VPRN PE routers and the VPLS PE router

T-LDP sessions with the other VPRN PE routers and the VPLS PE router

LDP sessions with the other VPRN PE routers and the VPLS PE router

LDP sessions with the other VPRN PE routers, and both T-LDP and LDP sessions with the VPLS PE router

T-LDP and LDP sessions with the other VPRN PE routers and LDP sessions with the VPLS PE router

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Question # 16

When an Nokia 7750 SR receives a BGP update containing an AS-Path loop, what is the default action?