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Nokia 4A0-106 - Nokia Virtual Private Routed Networks

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Total 214 questions

On a PE router, the VRF table for VPRN 10 contains: one local route, two BGP routes learned from a local CE. and three tunneled routes learned from a remote site. If we execute the command "configure service vprn 10 maximum-routes 2 log-only" on this PE router, how many routes are expected to be in the VRF?

A.

Five routes: the local route, the two BGP routes learned from the local CE, and two tunneled routes.

B.

Six routes: the local route, the two BGP routes learned from the local CE, and three tunneled routes.

C.

Two routes: the local route and one tunneled route.

D.

Three routes: the local route and two tunneled routes.

E.

Two routes: the local route and one BGP route learned from the local CE.

Click the exhibit.

For the inter-AS model C VPRN, which of the following is FALSE when an IP packet is sent from 192.1.1.1 to 192.2.1.1?

A.

PE1 pushes two labels on the IP packet and forwards it to ASBR1.

B.

ASBR1 pops the LDP label, swaps the BGP label and forwards the IP packet to ASBR2.

C.

ASBR2 forwards the IP packet with two labels to PE2.

D.

PE2 pops the labels and forwards the unlabeled IP packet to its destination.

Click the exhibit.

The displayed output is from an ASBR supporting an inter-AS model A VPRN. Which of the following statements about this output is TRUE?

A.

The neighbor shown is an ASBR router.

B.

The address family between the peers should be VPN-IPv4 instead of IPv4.

C.

The neighbor address cannot be the interface address 10.3.4.4.

D.

The omitted AS number under "BGP summary" must be equal to 64496.

Click the exhibit.

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

A.

Creating an export policy on CSC-CE1 and CSC-CE2 to advertise local PE addresses to the network provider.

B.

Configuring eBGP between CSC-CE and CSC-PE routers; setting the address family to IPv4; and enabling the advertisement of labels for IPv4 routes.

C.

Configuring iBGP between PE and CSC-CE within each customer carrier site; setting the address family to IPv4; and enabling the advertisement of labels for IPv4 routes.

D.

Configuring MP-iBGP between PE1 and PE2; setting the address family to IPv4; and enabling the advertisement of labels for IPv4 routes.

Which of the following is not a valid BGP design for a network provider supporting VPRNs?

A.

Full mesh of MP-BGP between all P devices

B.

Full mesh of MP-BGP between PE devices

C.

Route reflector configuration between PE devices

D.

Confederation configuration between PE devices

Click the exhibit.

A Carrier Supporting Carrier (CSC) VPRN is configured for a customer carrier who is an Internet Service Provider (ISP). Which of the following about route distribution is FALSE?

A.

The VRF 10 on CSC-PE1 includes PE1 and PE2's system addresses.

B.

The global routing table of PE1 includes PE2's system address.

C.

The VRF 10 on CSC-PE2 includes CEI'S address.

D.

The global routing table of PE2 includes CE1's address.

Which of the following is NOT a viable option when implementing inter-AS VPRN?

A.

An MP-eBGP session between route reflectors in different autonomous systems to exchange IPv4 routes.

B.

An MP-eBGP session between ASBRs to exchange labeled IPv4 routes.

C.

An eBGP session between ASBRs to exchange IPv4 routes.

D.

An MP-eBGP session between ASBRs to exchange VPN-IPv4 routes.

Click the exhibit.

For the inter-AS model A VPRN shown, which of the following about the route advertisement of 192.168.1.0/27 is FALSE?

A.

PE1 advertises 64496:1:192.168.1.0/27 route update to ASBR1.

B.

PE2 advertises 192.168.1.0/27 route update to CE2.

C.

ASBR1 advertises 64496:1:192.168.1.0/27 route update to ASBR2.

D.

ASBR2 advertises 64497:1:192.168.1.0/27 route update to PE2.

Which of the following statements about Inter-AS model Ð’ VPRN is TRUE?

A.

MP-iBGP is used between PE1 and ASBR1 to exchange VPN-IPv4 routes.

B.

eBGP is used between ASBR1 and ASBR2 to exchange IPv4 routes.

C.

MP-eBGP is used between PE1 and PE2 to exchange VPN-IPv4 routes.

D.

MP-eBGP is used between ASBR1 and ASBR2 to exchange labeled IPv4 routes.

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

A.

The route with the shortest AS path.

B.

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

C.

The route with the highest local preference.

D.

The route with the lowest originator ID or BGP identifier.