4A0-106 Nokia Virtual Private Routed Networks exact Exam Questions

Nokia Virtual Private Routed Networks

Last Update 8 hours ago Total Questions : 214

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Question # 41

A service provider core consists of 6 PE and 4 P routers. Assuming route reflection is not used, how many internal BGP sessions are required in the service provider network for a correct operation of VPRN services?

Question # 42

For a Carrier Supporting Carrier (CSC) VPRN where the customer carrier is an ISP that provides Internet connectivity to its end-customers, which of the following is FALSE?

Customer carrier PE routers residing in different sites must run iBGP between them to exchange customers ' routes.

MPLS can be used in the customer carrier network to improve scalability.

The customer carrier network can be a pure IP network.

A CSC VPRN is configured on the CSC-CE to forward data packets to the network provider.

Question # 43

Based on the VPRN BGP decision process, which of the following routes is selected first?

The route with the shortest AS path.

The route with the lowest route or tunnel table cost to the NEXT_HOP.

The route with the highest local preference.

The route with the lowest originator ID or BGP identifier.

Question # 44

Which of the following VPRN topologies must a customer implement to allow a given VRF to include routes from different VPRNs?

Either a hub and spoke or an extranet VPRN

An extranet VPRN

A hub and spoke VPRN

Either a full mesh or a hub and spoke VPRN

Question # 45

The headquarter sites of VPRN 10 and VPRN 20 are part of an extranet VPRN. Which route target(s) should be imported under the VPRN 10 service on router R1?

target:65100:1 only

target:65100:1 and target:65100:2

target:65100:1 and target:65100:3

target:65100:1, target:65100:2, and target:65100:3

Question # 46

When using the AS-override method to prevent BGP loops in VPRNs, where should the " as-override " CLI command be configured?

On the PE facing the CE neighbor

On the CE facing the PE neighbor

On the P facing the PE neighbor

On the PE facing the PE neighbor

Question # 47

Click the exhibit.

A Carrier Supporting Carrier (CSC) VPRN is configured on an Nokia 7750 SR for a customer carrier who is an Internet Service Provider (ISP). Which of the following configuration steps is NOT required?

Configuring iBGP sessions between PEs residing in different customer carrier sites.

Configuring a policy on each CSC-CE to advertise local PE addresses to the network provider.

Configuring a CSC VPRN on each CSC-PE with a SAP interface towards the attached CSC-CE.

Configuring an IES service on PEL

Question # 48

Click the exhibit.

A Carrier Supporting Carrier (CSC) VPRN is configured for a customer carrier who is an Internet Service Provider (ISP). If CE1 sends an IP packet to 192.60.100.1, which of the following is FALSE?

PE1 pushes an LDP transport label.

CSC-PE1 pops the BGP label and pushes two labels: a VPN label and an MPLS transport label.

CSC-PE2 pops the MPLS transport label and pushes a BGP label.

CSC-CE2 pops the BGP label and pushes an LDP transport label.