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4A0-104 Exam Dumps - Nokia Services Architecture

Question # 4

How many service labels must be signaled to bring up a fully-meshed VPLS among five PE routers?

A.

1

B.

5

C.

10

D.

20

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Question # 5

Fragmentation is supported on a Layer 2 service

A.

TRUE

B.

FALSE

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Question # 6

Click on the exhibit button below.

Assuming the customer only needs to monitor traffic from PE3 to the customer site, what two items are missing in the configuration of PE5, the Alcatel-Lucent 7750 Service Router in the Head Office? (Assume that the IP/MPLS network structure between the local and remote PEs is in place.)

A.

The mirror destination configuration on PE5 is missing the "remote-source" command.

B.

There needs to be a mirror source configuration on PE5 with the "remote-source" command.

C.

This is not possible since the protocol analyzer is located at the Central Office. It needs to be at the customer site.

D.

There needs to be a configuration command to put sap 1/1/3 on the mirror destination of PE5.

E.

There needs to be a configuration command to put sap 1/1/3 on the mirror source of PE5

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Question # 7

Which service is needed to bridge an ATM service to an Ethernet service?

A.

Apipe

B.

Fpipe

C.

Cpipe

D.

Epipe

E.

Bridge service

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Question # 8

In a VPLS service, the mesh-sdp vc-id is identical to the service id by default.

A.

TRUE

B.

FALSE

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Question # 9

Which of the following statements best describes the flooding of traffic on a PE when traffic is received on a SAP?

A.

Traffic is flooded to all SAPs in the service.

B.

Traffic is flooded to all SAPs and spoke SDPs in the service.

C.

Traffic is flooded to all SAPs and mesh SDPs in the service.

D.

Traffic is flooded to all SAPs, spoke SDPs, and mesh SDPs in the service.

E.

The traffic is not flooded.

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Question # 10

Which of the following about the VPRN data plane is TRUE?

A.

A packet receives a service label and a transport label at the ingress PE.

B.

A packet has its servicelabel swapped at each P router.

C.

The egress PE pops the service label, and the transport label is forwarded.

D.

The service label is popped by the remote CE.

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Question # 11

Click the exhibit.

Both clips of output are from router R4. The show service command indicates that an SDP is down. What might be the cause?

A.

The mesh SDP on router R4 has been shutdown.

B.

The mesh SDP on 10.10.10.1 has been shutdown.

C.

The service MTU on 10.10.10.1 has been set to a different value.

D.

The IngLbl and EgrLbl that router R4 has for 10.10.10.1 are identical.

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Question # 12

Which of the following commands would be used to configure a new VPLS service that will use a default vc-id of 5 and a customer id of 4?

A.

configure service vpls 4 customer 4 vc-id 5 create

B.

configure service vpls 5 customer 4 create

C.

configure service vpls 100 customer 4 vc-id 4 create

D.

configure service vpls vc-id 5 customer4 create

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Question # 13

A CE is connected to an IES interface. Which of the following is TRUE?

A.

The IES's interface must be an IGP peer with the CE.

B.

The IES must use an IP address that is different than the C£.

C.

The IES can only include one SAP for the CE.

D.

The IES must include a network port.

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Question # 14

In a Layer 2 encapsulation using T-LDP, what does the first (top) label represent?

A.

Tunnel Label

B.

VC Label

C.

Operational Control Word

D.

UNI

E.

NNI

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Question # 15

Which of the following comparisons between E-pipes and VPLSes is FALSE?

A.

They both function as a Layer 2 switch from the service provider's perspective.

B.

They both support SAP encapsulations of null, dot1Q and Q-in-Q.

C.

They both use SAPs as the demarcation point between the customer and the provider.

D.

MAC addresses are learned by VPLSes, but not by E-pipes.

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Question # 16

What happens by default on an Alcatel-Lucent 7750 SR when a VPLS accepts a tagged frame at the ingress SAP 1/1/1:100?

A.

The FCS is verified and kept in the customer frame. The VLAN tag is kept and transported over the network.

B.

The FCS is verified and kept in the customer frame. The VLAN tag is removed for transport over the network.

C.

The FCS is verified and removed from the frame. The VLAN tag is kept for transport over the network.

D.

The FCS is verified and removed from the frame. The VLAN tag is removed for transport over the network.

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Question # 17

Click the exhibit.

Based on this output from PE router R1, how many other PEs are participating in the VPRN?

A.

0

B.

1

C.

2

D.

3

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Question # 18

Click the exhibit.

This PE is connected to an IPv4 core and is being configured to support 6VPE for a VPRN.Which of the following completes this section of the configuration?

A.

Family ipv4

B.

Family ipv6

C.

Family ipv4 ipv6

D.

Family vpn-ipv4

E.

Family vpn-ipv4 vpn-ipv6

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Question # 19

On which object is ADSPEC enabled?

A.

SDP

B.

Network port

C.

LSP

D.

Service

E.

RSVP

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Question # 20

Which of the following about transport and service tunnels is FALSE?

A.

Service tunnels are unidirectional.

B.

Transport tunnels are unidirectional.

C.

A service will use the same service label for every hop.

D.

A local service requires a transport tunnel.

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Question # 21

Which of the following about VPLS MAC learning is TRUE?

A.

Mesh SDPs assist MAC learning by flooding traffic to other mesh SDPs.

B.

A PE keeps a single FDB for all VPLSes it has.

C.

Frames received on a SAP that are broadcast, multicast or unknown are flooded.

D.

The FDB only stores the MAC addresses of remote sites.

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Question # 22

Which of the following statements about VPRN is NOT true? (Choose 2)

A.

VPRN is an IP service that connects multiple sites in a single routed domain over the provider-managed IP/MPLS network.

B.

Each VPRN consists of a set of customer sites that must connect to the same PE router

C.

In a VPRN service, each customer router becomes a routing peer to other customer routers

D.

VPRN provides customer routers with transparent IP connectivity without knowledge of the MPLS core

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Question # 23

A Cpipe supports both structured and unstructured frames.

A.

TRUE

B.

FALSE

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Question # 24

Which service type would be used to provide a bi-directional Layer 2 connection of TDM circuits over an IP/MPLS network?

A.

A-pipe

B.

E-pipe

C.

I-pipe

D.

F-pipe

E.

C-pipe

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Question # 25

When configuring an IES spoke termination to a VPLS, what must be explicitly configured in order for the service to come up? (Choose 2)

A.

MTU must match on both services,

B.

Mesh-SDP with matching vc-id configured,

C.

Spoke-SDP with matching vc-id configured.

D.

Spoke-SDP.

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Question # 26

A network technician needs to set up a local mirror to replicate traffic for examination with a protocol analyzer. The analyzer is on port 1/1/4 of his service router. Which of the following configuration steps is required?

A.

A mirror source listing port 1/1/4.

B.

A mirror destination listing port 1/1/4.

C.

A remote source command indicating the IP address of the service router he is configuring a local mirror on.

D.

Verification that his IP/MPLS infrastructure is in place

E.

None of the above.

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Question # 27

What is the minimum Ethernet physical network MTU required for a Layer 2 service on a GRE encapsulated SDP with a service MTU of 1514?

A.

1514

B.

1526

C.

1548

D.

1556

E.

1536

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Question # 28

Which of the following statements is TRUE regarding a VRF?

A.

A VRF contains a single VPRN routes.

B.

Every VRF in a PE is associated with one or more route target attributes.

C.

Each VPRN needs a separate VRF in each PE router.

D.

On the 7750 SR, by default, there is a unique one-to-one association between a VPN label and a VRF

E.

All of the above statements are true.

F.

All of the above statements are false.

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Question # 29

Which of the following about the label stack of a VPRN is FALSE?

A.

The service label is swapped for a transport label during transport.

B.

The transport label is used to forward packets between PEs.

C.

The service label is used to identify which VPRN a packet belongs to.

D.

Labels are initially added at the ingress PE.

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Question # 30

Click the exhibit.

The output is from PE router R1about VPRN service 100.From which protocol did router R1learn the prefix 192.168.20.0/24?

A.

LDP

B.

BGP

C.

MP-BGP

D.

MPLS

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Question # 31

Which of the following about the VPN-IFV4 address family is FALSE?

A.

VPN-IFV4 allows multiple customers to have overlapping IP addresses.

B.

CE routers use VPN-IPv4 prefixes to differentiate between services.

C.

PE routers are responsible for creating VPN-IPv4 prefixes.

D.

A VPN-IFV4 prefix is composed of a route distinguisher (RD) and an IPv4 address.

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Question # 32

On which component is vc-type configured to create an E-pipe service that preserves the VLAN tag during transport?

A.

The SDP itself (outside of the epipe context).

B.

The SAP in the E-pipe.

C.

The mesh SDP in the E-pipe.

D.

The spoke SDP in the E-pipe.

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Question # 33

Which of the following about IES is FALSE?

A.

An IES has a configurable VC MTU.

B.

An IES interface has an IP address assigned to it.

C.

IES supports QoS.

D.

An IES requires a spoke SDP.

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Question # 34

Consider an E-pipe service configured with SAP 1/1/1:5 and SAP 1/1/1:6.7. If the SAP 1/1/1:5 accepts an ingress frame, which of the following is TRUE?

A.

The frame egresses 1/1/1:6.7 with an outer VLAN tag of 6 and inner tag of 7.

B.

The frame is dropped at the egress SAP 1/1/1:6.7.

C.

The frame egresses 1/1/1:6.7 with VLAN tag 5.

D.

The frame egresses 1/1/1:6.7 with VLAN tag 6.

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Question # 35

Which of the following about the Alcatel-Lucent 7750 SR svc-ping, when used in-band, is FALSE?

A.

It will show the hops taken between service endpoints.

B.

It will test the delay across the service.

C.

It will test the SDPs of a service in both directions.

D.

It will test the round-trip connectivity of the service.

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Question # 36

Which of the following about IES is TRUE?

A.

An IES requires a spoke SDP.

B.

A virtual route table must be configured for an IES service.

C.

An IES service must use static routes to communicate with customer networks.

D.

An IES must have at least one SAP defined.

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Question # 37

Which of the following about VPRN route targets is FALSE?

A.

Route targets are carried in MP-BGP updates.

B.

Route targets identify the VRF that a VPN-IFV4 prefix is associated with.

C.

Route targets are communicated between PEs that are part of a specific VPRN.

D.

Route targets identify the egress SAP of a service towards a CE.

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Question # 38

Click on the exhibit button below.

Is a routing policy required on PE1 to advertise a CE1's system interface to PE2?

A.

Yes. A routing policy is required to advertise routes between PE routers in a VPRN

B.

No. A routing policy is not required; the default behavior on the 7750 SR is to advertise all VPRN routes between PE routers.

C.

A routing policy is required only when BGP is used as the PE-CE routing protocol, as shown in the exhibit.

D.

A CE1 system interface can not be advertised to PE2 since the CE routers are not aware of the VPRN.

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Question # 39

Which of the following most accurately describes the default behavior of a VPLS regarding the handling of a tagged frame at the ingress ofSAP1/1/1:100?

A.

The FCS is verified and the customer frame is transported intact over the service provider network.

B.

The FCS is verified and kept in the customer frame. The VLAN tag is removed for transport over the network.

C.

The FCS is verified and removed from the frame. The VLAN tag is kept for transport over the network.

D.

The FCS is verified and removed from the frame. The VLAN tag is removed for transport over the network.

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Question # 40

Click the exhibit.

PE1 and PE2 are Alcatel-Lucent 7750 SRs.What needs to be added to PE1's configuration to mirror traffic between PE2 and the customer site?

A.

A "remote-source" needs to be added to the mirror destination on PEL

B.

A mirror source needs to be added to PE1 with a "remote-source".

C.

This is not possible since the protocol analyzer is located at the Central Office.It needs to be at the customer site.

D.

A mirror source with SAP 1/1/2 needs to be added on PEL

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Question # 41

On a dot1Q encapsulated port, frames with a VLAN tag of 0 and untagged frames are forwarded to the null SAP

A.

TRUE

B.

FALSE

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Question # 42

Which tree in the CLI would you need to be in to add a QoS policy to a SAP?

A.

config>router#

B.

config>qos#

C.

config>port#

D.

config>service#

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Question # 43

What can the sdp-ping command be used for? (Choose 2)

A.

To test the ability of reaching the far-end IP address of an SDP within the SDP encapsulation

B.

To determine the path MTU to the far-end IP address over an SDP.

C.

To determine the service MTU of the service using an SDP.

D.

To determine the presence of hosts using the service

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