Nokia 4A0-106 Nokia Virtual Private Routed Networks Exam Practice Test

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

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

ASBR2 forwards the IP packet with two labels to PE2.

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

ASBR2 has a total of three BGP sessions established: one with PE2, one with RR2, and one with ASBR1.

RR1 has a total of three BGP sessions established: one with PEL one with RR2, and one with ASBRL

PE2 has a total of two BGP sessions established: one with RR2 and one with ASBR2.

PE1 has a total of two BGP sessions established: one with RR1 and one with PE2.

MP-iBGP sessions must be configured between the PE routers in each AS.

LDP must be configured in each AS.

MP-eBGP sessions must be configured between the ASBRs.

The ASBRs must be configured with "enable-inter-as-vpn".

The prefix is located in an Autonomous System directly connected to this router.

There is a single Autonomous System between the local AS and the AS that originated the prefix.

There are two Autonomous Systems between the local AS and the AS that originated the prefix.

The prefix is located in Autonomous System 65100.

The primary VRF on PE1 contains routes learned from spoke sites.

All traffic between spoke sites must pass through CE1.

The secondary VRF on PE1 is used to route data packets from the hub CE to the spoke sites.

PE1 advertises the primary VRF routes to CE1.

A full mesh VPRN

APE hub and spoke VPRN

An extranet VPRN

ACE hub and spoke VPRN

64491 {64492 64493}

64491

64492 64493 64491

{64492 64493)64491

Resources consumed at the sender and receiver PEs can be reduced by using BGP ORF.

BGP ORF allows a receiving PE to filter out unnecessary inbound routes.

A PE indicates its ORF capabilities to its neighbor PE in a BGP Open message.

BGP ORF is most effective when a large number of routes is being exchanged between two peers, and most routes are filtered out on arrival.

Each customer site has a logically direct route to every other customer site.

It provides optimal routing between all sites.

It allows access between all CE devices and all sites participating in the same VRF.

It requires a full BGP mesh in the provider core.

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.

This configuration is correct and complete.

This configuration is correct, except that the system interface must be added.

This configuration is correct, except that the interfaces facing the CE routers must be added.

MPLS configuration is not required.

CE2 forwards an unlabeled IP packet to PE2 via the VPRN interface.

PE2 pushes one label on the IP packet and label-switches it to ASBR2.

ASBR2 forwards an unlabeled IP packet to ASBR1.

ASBR1 pushes two labels on the IP packet and label-switches the packet to PE1.

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

iBGP

eBGP

MP-iBGP

MP-eBGP

Logical Partitioning of route reflectors works best when PEs are partitioned to support different VPRNs.

Logical Partitioning of route reflectors is simple and scalable, but requires more hardware.

Filtering at route reflectors requires either inbound filtering at the route reflector or outbound filtering at the PE routers.

Filtering at route reflectors allows the route reflector to filter routes received from PEs and only accept routes with a certain route distinguisher.

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

The LDP identifier

The Service identifier

The Route Target

The Route Distinguisher

The tunnel label

PE1 pushes three labels on the IP packet: a VPN label, a BGP label, and an LDP transport label.

ASBR1 pops the LDP and BGP labels and swaps the VPN label.

ASBR2 pops the BGP label and pushes an LDP transport label.

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

A single routing protocol for exchanging routes with both the internal customer routers and with the PE

MP-BGP to exchange routes with the PE.

MPLS and a routing protocol for the exchange of labels and routes with the PE

MPLS for exchanging labels with other CE devices

A routing protocol for exchanging routes with the internal customer routers and a routing protocol for exchanging routes with the PE

OSPF is not configured on the CE router

There is a problem with OSPF authentication

The operational MTU does not match

The PE and CE router have different OSPF interface types configured

None of the above

The route with the lowest MED.

The route with the shortest AS Path.

The route received from the lowest peer IP address.

The route with the lowest Origin.

P devices participate in service provider core routing.

P devices are not required to be MPLS-enabled.

P devices must be aware of the VPRNs.

P devices must support MP-BGP.

Participate in service provider core routing

P devices are not required to be MPLS enabled. MPLS is only required on the PE devices

Run a common routing protocol with the CE router

Must support MP-BGP

Do not have any connections to the CE

Must be aware of the VPRNs

One Route Distinguisher per VRF route

One Route Distinguisher per VRF

One Route Distinguisher per VRF per site

One Route Distinguisher per VPN

The PE will install a maximum of 40 prefixes into the customer vrf and generate a log message when 40 routes are received

The PE will install a maximum of 40 prefixes into the customer vrf, and generate a log message both when 30 and 41 routes are received

The PE will install a maximum of 40 prefixes into the customer vrf, generate a log message when 10 routes are received and disable learning of new routes at 41

The PE will install a maximum of 40 prefixes into the customer vrf, generate a log message when 10 routes are received and drop the connection at 41

The PE will install a maximum of 40 prefixes into the customer vrf, generate a log message when 4 routes are received and disable learning of new routes at 41

The customer carrier network can be a pure IP network.

The customer carrier provides Layer 2 and Layer 3 services to its end-customers.

A single CSC VPRN is configured on the network provider to support all services offered by the customer carrier.

In the case where the customer carrier offers VPRN services, the model is referred to as hierarchical VPRN.

It will be placed into the customer VRF and automatically propagated into the BGP table

It will be placed into the customer VRF and then be propagated to the BGP table only if BGP is used as the PE-CE protocol

It will be placed into the customer VRF and require an export policy to be propagated to the BGP table

It will be placed into the customer VRF and require an export policy to be propagated to the BGP table if RIP is used as the PE-CE protocol

It will be placed into the customer VRF and require an export policy to be placed into the BGP table if a protocol other than BGP is used as the PE-CE protocol

Show service 3

Show service id 3

Show service 3 base

Show service id 3 base

Show service 3 detail

Show service id 3 detail

When the P receives the route from the PE.

When the PE populates the route received from the CE into the VRF.

When the PE propagates the route to the CE.

When the PE exports the route from the VRF into the MP-BGP table.

Sap 1/1/1 create

Sap 1/1/1 customer 10 create

No shutdown

Neighbor 192.168.1.2

Allow routes to be exchanged between all or selected sites of one VPRN and all or selected sites of a second VPRN

Allow the service provider to provide multiple VPRNs with Internet access

Reduce the number of VPRN tunnels required

Simplify the administration of multiple VPRNs

Force all traffic in multiple VPRNs to pass through a single device

It will label switch the packet based on this label

It will decrement the TTL and label switch the packet based on this label

It will SWAP the label for a new label and then label switch the packet

The P router does not perform any operation on this label