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Question # 4

What is wrong with the configuration shown below?

A.

The VPRN ID must be the same value as is used in the vrf-target command

B.

The VPRN ID must be the same value as is used in the route-distinguisher command

C.

The router-id command should not be used in this context

D.

The vrf-target command is mandatory

E.

There is nothing wrong with this configuration

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Question # 5

Which command is used to generate the output from an Nokia 7750 SR shown below?

A.

Show service 3

B.

Show service id 3

C.

Show service 3 base

D.

Show service id 3 base

E.

Show service 3 detail

F.

Show service id 3 detail

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Question # 6

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?

A.

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

B.

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

C.

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

D.

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

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Question # 7

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

A.

It is an 8 byte value containing 3 fields

B.

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

C.

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

D.

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

E.

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

F.

The Assigned Number field must contain a public IP address

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Question # 8

In a traditional layer 3 VPN which of the following will be an issue when there is overlapping address space between two customers? Choose the best answer.

A.

There will be increased memory usage on the PE

B.

There will be increased CPU utilization on the PE

C.

The CE will reject the overlapping prefix

D.

The PE will not recognize the prefixes as being different

E.

There is no issue with overlapping address space in a traditional Layer 3 VPN

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Question # 9

Click the exhibit.

Which of the following about the inter-AS model A VPRN configuration on ASBR1 is TRUE?

A.

The route-distinguisher value must be 64496:10 for successful VPRN operation.

B.

An export policy is not required for successful VPRN operation.

C.

The "family vpn-ipv4" command is required under the BGP configuration for successful VPRN operation.

D.

The neighbor address should be 10.10.10.4 under the BGP configuration for successful VPRN operation.

E.

The VPRN configuration on ASBR1 is correct.

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Question # 10

Click the exhibit.

Which of the following best describes the output?

A.

The AS-Path is not present because a policy is configured on PE2 to set it to null.

B.

The AS-Path is not present because a policy is configured on CE1 to set it to null.

C.

The AS-Path is not present because a policy is configured on PE1 to set it to null.

D.

The AS-Path is not present because VPN-IPv4 routes do not propagate the IPv4 AS-Path BGP attribute.

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Question # 11

A customer has two sites connected to PE-1 and a third site dual-homed to PE-2 and PE-3. If BGP is used as the PE-CE protocol, what is the total number of BGP and MP-BGP sessions required on PE-1 for a functional VPRN service? Assume that route reflection is not used.

A.

0 BGP and 2 MP-BGP sessions

B.

2 BGP and 0 MP-BGP sessions

C.

2 BGP and 1 MP-BGP sessions

D.

2 BGP and 2 MP-BGP sessions

E.

1 BGP and 2 MP-BGP sessions

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Question # 12

What is the minimum number of Route Distinguishers required to implement an overlapping VPRN involving 5 different customers?

A.

1

B.

3

C.

5

D.

7

E.

10

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Question # 13

A CE hub and spoke VPRN has two spoke sites; which of the following would be the best option to implement this topology at the hub site PE?

A.

One VPRN, one route distinguisher, and two route targets

B.

Two VPRNs, one route distinguisher, and three route targets

C.

Two VPRNs, two route distinguishers, and three route targets

D.

One VPRN, two route distinguishers, and three route targets

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Question # 14

What is the purpose of the Route Distinguisher?

A.

It defines the VPN membership

B.

It defines which routes are imported into the vrf

C.

It defines which routes are exported from the vrf

D.

It is used to make IPv4 addresses unique

E.

It is used as the VPN label

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Question # 15

In a provider core consisting of 6 PE and 4 P routers, what is the minimum number of BGP sessions required in total for correct operation of VPRN services?

A.

0

B.

5

C.

10

D.

15

E.

45

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Question # 16

When a Service Provider offers VPRN services to its customers, which of the following functions are expected to be the responsibility of the Service Provider? (Choose three)

A.

Distributing the customer generated labels between sites

B.

Distributing the customer routing information between

C.

Forwarding the customer originated data packets to the appropriate destination

D.

Forwarding the provider originated data packets to the appropriate customer site

E.

Providing secure layer 3 routing exchange between sites

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Question # 17

Click the exhibit.

The headquarter sites of VPRN 10 and VPRN 20 ate part of an extranet VPRN. Which of the following communities are included in the export policy applied to VPRN 10 on router R1?

A.

"Extranet-VPN-Blue" and "Extranet-VPN-Green"

B.

"Blue-Only"

C.

"Extranet-VPN-Blue"

D.

"Blue-Green"

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Question # 18

Click the exhibit.

For the Carrier Supporting Carrier (CSC) VPRN, which routes are advertised from CSC-CE1 toPE1?

A.

IGP/LDP or labeled BGP routes for all PE system addresses in AS 5000 Site B

B.

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

C.

IGP/LDP or labeled BGP routes for all PE system addresses in AS 1000

D.

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

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Question # 19

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

B.

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

C.

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

D.

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

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Question # 20

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.

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Question # 21

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.

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Question # 22

On an Nokia 7750 SR, which CLI command displays the Route Target(s) associated to a prefix?

A.

Show router bgp routes

B.

Show router route-table summary

C.

Show router bgp routes vpn-ipv4 detail

D.

Show router route-table

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Question # 23

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.

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Question # 24

Community lists are configured for the PE hub and spoke VPRN.

Which communities should be imported by the VPRN service on PE1?

A.

“Spoke_Sites”

B.

“Hub_Site”

C.

“Spoke_Sites” and “Hub_Site”

D.

No communities should be imported.

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Question # 25

Which of the following statements about Inter-AS model В 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.

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Question # 26

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

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Question # 27

Click the exhibit.

Internet access is provided to the Red VPRN (ID 10) via an Internet VRF (ID 500). For this configuration, which communities must be imported on the Red and Internet VRFs?

A.

Red VRF imports only "Internet"

Internet VRF imports only "Red-Only"

B.

Red VRF imports "Internet" and "Red-Only"

Internet VRF imports only "Red-Only"

C.

Red VRF imports only "Red-Only"

Internet VRF imports "Red-Only" and "Internet"

D.

Red VRF imports "Internet" and "Red-Only"

Internet VRF imports only "Internet"

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Question # 28

How are local CE routes associated with the appropriate VRF at the PE?

A.

Based on the interface on which they are received.

B.

Based on the Route Distinguisher.

C.

Based on the Route Target.

D.

Based on the Service Identifier.

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Question # 29

Which of the following commands produces the output for the inter-AS model B VPRN?

A.

show router 10 bgp routes vpn-ipv4

B.

show router bgp routes

C.

show router bgp routes vpn-ipv4

D.

show router route-table

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Question # 30

Which of the following about the Route Target is TRUE?

A.

The Route Target is added to an IPv4 route to create the VPN-IPv4 route.

B.

The Route Target is an extended community string that identifies VPN membership.

C.

A route can have only one Route Target.

D.

The Route Target is a 64-bit value added to customer prefixes to make them unique.

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Question # 31

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

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Question # 32

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.

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