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Nokia 4A0-C02 - Nokia SRA Composite Exam

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Page: 8 / 13
Total 639 questions

Click the exhibit.

For the inter-AS model A VPRN. BGP is used as the PE-CE routing protocol. Which of the following statements about the control plane operation is TRUE?

A.

PE1 sends an IPv4 update for prefix 192.168.1.0/27 via MP-BGP to ASBR1.

B.

ASBR1 sends an IPv4 update for prefix 192.168.1.0/27 to ASBR2.

C.

ASBR1 transforms an IPv4 update for prefix 192.168.1.0/27 to a VPN-IPv4 route; allocates VPN label V1 and sends the update to ASBR2.

D.

ASBR2 accepts a VPN-IPv4 update from ASBR1, then sends the update to PE2 via MP-BGP.

Which of the following about inter-AS model A VPRN is FALSE?

A.

It requires the configuration of back-to-back VRFs between ASBR routers in different autonomous systems

B.

It is the most scalable of the Inter-AS models.

C.

Most routers that support VPRN functionality support model A by default.

D.

It uses conventional eBGP to distribute unlabeled IPv4 routes between ASBR routers in different autonomous systems.

Click the exhibit.

All sites in the displayed network require Internet access. Route reflector 1(RR1) is used for Internet routes only and route reflector 2(RR2) is used for VPN routes only. Which of the following is FALSE?

A.

BGP sessions between RR1 and PE routers support only the IPv4 address family.

B.

BGP sessions between RR2 and PE routers support only the VPN-IPv4 address family.

C.

RR2 establishes BGP sessions with PEL PE2 and PE3.

D.

RR1 establishes BGP sessions only with PE1 and PE2.

Choose the answer that best completes the following sentence. The CE device is typically configured with _________________.

A.

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

B.

MP-BGP to exchange routes with the PE.

C.

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

D.

MPLS for exchanging labels with other CE devices

E.

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

Which of the following about inter-AS model AVPRN is TRUE?

A.

It is the most scalable of the Inter-AS models.

B.

VRF configuration is not required on the ASBRs.

C.

Most routers that support VPRN functionality do not support model A by default.

D.

It is not necessary to run MPLS at the boundary between autonomous systems.

Click the exhibit.

Assuming that the as-override command is used, what is the most likely location of prefix 10.1.2.0/24?

A.

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

B.

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

C.

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

D.

The prefix is located in Autonomous System 65100.

What are the two primary problems the service provider must consider when providing traditional Layer 3 VPN services using only a single common routing table in the provider core? (Choose two)

A.

Memory exhaustion in the provider core

B.

Route leaking between the customer networks

C.

CPU utilization for route processing

D.

Unwanted packet forwarding between customer networks

It is required to prepare the provider core for LDP on an Alcatel-Lucent 7750 SR. Based on the configuration shown below, choose the answer that best describes the given configuration.

A.

This configuration is correct and complete

B.

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

C.

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

D.

MPLS configuration is not required

Which of the following is not an available option for Route Distinguisher assignment?

A.

One Route Distinguisher per VRF route

B.

One Route Distinguisher per VRF

C.

One Route Distinguisher per VRF per site

D.

One Route Distinguisher per VPN

Click the exhibit.

For the CE hub and spoke VPRN, which of the following is FALSE?

A.

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

B.

All traffic between spoke sites must pass through CE1.

C.

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

D.

PE1 advertises the primary VRF routes to CE1.

The policies shown below from the configuration of an Alcatel-Lucent 7750 SR have been created to implement an Extranet VPRN between the main sites of two separate VPRNs. How should these policies be applied?

A.

ample Policy should be applied as an export policy on the PE connected to the main site of Customer 1

B.

ample Policy 3 should be applied as an export policy on the PE connected to the main site of Customer 2

C.

ample Policy 3 should be applied as an export policy on both PEs connected to the main site of Customer 1 and the main site of Customer 2

D.

ample Policy should be applied as an export policy on both PEs connected to the main site of Customer 1 and the main site of Customer 2

E.

ample Policy should be applied as an export policy on all PEs connected to sites of Customer 1

Which of the following about VPRN Outbound Route Filtering (ORF) is FALSE?

A.

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

B.

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

C.

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

D.

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.

Click the exhibit.

How many route targets and route distinguishers are required to implement the extranet VPRN?

A.

Three route targets and three route distinguishers

B.

Five route targets and three route distinguishers

C.

Three route targets and two route distinguishers

D.

Five route targets and two route distinguishers

In a VPRN that uses MPLS transport tunnels, which of the following is NOT configured on the PE device?

A.

MP-BGP for exchanging customer routes with other PEs.

B.

A routing protocol for exchanging customer routes with the CE.

C.

A label signaling protocol for defining transport tunnels between the PE and CE.

D.

MPLS for exchanging labels with other provider core devices.

Click the exhibit.

Which VPRN type produces the output shown on router R1?

A.

A full mesh VPRN

B.

APE hub and spoke VPRN

C.

An extranet VPRN

D.

ACE hub and spoke VPRN