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4A0-104 Alcatel-Lucent Services Architecture Questions and Answers

Questions 4

Which of the following SAPs will forward all tagged and untagged frames on the port?

Options:

A.

sap 1/1/1

B.

sap 1/1/1:*.0

C.

sap 1/1/1:0.*

D.

1/1/1:0

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Questions 5

Which of the following about IES is TRUE?

Options:

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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Questions 6

An IPv4 MPLS provider network is being configured for 6VPE.BGP is being used for the PE-CE protocol to exchange IPv6 routes. Which of the following is FALSE?

Options:

A.

MP-BGP in the provider network needs to support the VPN-IPv6 address family.

B.

PE routers must be configured to run MP-BGP.

C.

PE-to-CE BGP sessions need to be configured to support IPv6.

D.

The provider network core must be configured to support IPv6.

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Questions 7

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

Options:

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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Questions 8

Which of the following is TRUE when a service uses a GRE transport tunnel?

Options:

A.

The service takes a route determined by the IGP.

B.

The tunnel does not use a service label.

C.

The service label is swapped at each hop in the transport network.

D.

The tunnel is bidirectional and only requires configuration at one end of the service.

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Questions 9

Which protocol can be used to signal the outer label for a VPN service?

Options:

A.

IPCP

B.

LDP

C.

PPP

D.

TLDP

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Questions 10

Which of the following statements is FALSE regarding 6VPE?

Options:

A.

Multiple MP-BGP sessions are required to carry VPN-IPv4 and VPN-IPv6 routes.

B.

PE routers must support both IPv4 and IPv6 addresses; customer routers can use either one

C.

In 6VPE, MP-BGP is used to advertise IPv6 prefixes and the associated VPRN label.

D.

In 6VPE, the provider core routers are IPv6-unaware.

E.

All of the above statements are true.

F.

All of the above statements are false.

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Questions 11

Which of the following are characteristics of an IES service? (Choose 2)

Options:

A.

A virtual routing/forwarding table is created per IES service.

B.

Only one IES service can be created for a single customer ID.

C.

More than one IP interface can be created within a single IES service.

D.

All IP interfaces created within the same IES service belong to the same customer

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Questions 12

Which of the following best describes a VPRN?

Options:

A.

Layer 3 direct Internet access service.

B.

Layer 2 point-to-point service.

C.

Layer 2 multipoint-to-multipoint service.

D.

Layer 3 IP multipoint-to-multipoint VPN service.

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Questions 13

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

Options:

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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Questions 14

A VPRN service is configured with BGP used as the CE-PE routing protocol. What address families are required on the PE-CE BGP session?

Options:

A.

VPN-IPv4 address families are required in order for routes to be exchanged with the PE.

B.

Only default IPv4 address families are required since the CE is not aware of the VPRN service

C.

Either IPv4 or VPN-IPv4 address families can be configured on the PE-CE BGP session

D.

An IPv4 address family configuration is required for the PE-PE configuration.

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Questions 15

Which of the following commands is used to enable an Epipe service?

Options:

A.

config>service# epipe service-id enable

B.

config>service# vpws service-id enable

C.

config>service# service-id no shutdown

D.

config>port# port-id no shutdown

E.

config>service# epipe service-id no shutdown

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Questions 16

Which of the following statements are TRUE about configuring a distributed Epipe service? (Choose 2)

Options:

A.

The vc-id on the spoke-sdp must be explicitly configured.

B.

The vc-id on the mesh-sdp must be explicitly configured.

C.

The vc-id on the spoke-sdp can be configured to match the service id.

D.

The vc-id on the mesh-sdp can be configured to match the service id.

E.

The vc-id on the spoke-sdp does not have to be explicitly configured and will use the service id.

F.

The vc-id on the mesh-sdp does not have to be explicitly configured and will use the service id.

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Questions 17

A Cpipe supports both structured and unstructured frames.

Options:

A.

TRUE

B.

FALSE

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Questions 18

Epipe services do no consume any MAC resources because MAC learning is disabled.

Options:

A.

TRUE

B.

FALSE

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Questions 19

Which protocol is used to signal the service label for a Layer 3 VPRN service?

Options:

A.

L-LDP

B.

T-LDP

C.

RSVP-TE

D.

MP-BGP

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Questions 20

Which of the following about route distinguishes on the Alcatel-Lucent 7750 SR is TRUE?

Options:

A.

Route distinguishes are used to ensure that VPRN IP prefixes are globally unique.

B.

Route distinguishes are appended to IPv4 prefixes to form IPv6 prefixes.

C.

Route distinguishes are used to determine which routes a VPRN should import.

D.

CE routes use a route distinguisher to indicate which VPRN they are associated to.

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Questions 21

A SAP configured in the form of 1/1/1:0/32 would be used for which type of VPWS?

Options:

A.

A-pipe

B.

C-pipe

C.

E-pipe

D.

F-pipe

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Questions 22

What is the best approach of making MTUs match between a VPLS and a spoke IES in order to bring up the service?

Options:

A.

Change the service MTU of the VPLS to match the IES.

B.

Set the ip-mtu of the IES service to match the service MTU of the VPLS service.

C.

Change the MTU of the SDP attached to the VPLS to match the service MTU of the VPLS.

D.

Set the DNF flag on the IES service.

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Questions 23

Which of the following best describes how a MAC FDB is populated in a VPLS service?

Options:

A.

A VPLS service does not use a MAC FDB.

B.

The router reads the destination MAC address of frames passing through the service.

C.

The router reads the source MAC address of frames passing through the service.

D.

The router uses reverse ARP (RARP) to resolve the MAC addresses for unknown destinations.

E.

The router is programmed with MAC addresses by the network administrator.

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Questions 24

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?

Options:

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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Questions 25

What command syntax would be used to create a new routed interface on an existing IES service?

Options:

A.

config>service>ies# interface "to-CE" customer customer-id create

B.

config>service>ies# interface to CE create

C.

config>service>ies# interface to CE

D.

config>service>ies# interface "to-CE" create

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Questions 26

Consider an E-pipe service configured with SAP 1/1/1:5 and SAP 1/1/1:6. If the SAP 1/1/1:5accepts an ingress frame, which of the following is TRUE?

Options:

A.

The frame egresses from 1/1/1:6 with no VLAN tag.

B.

The frame egresses from 1/1/1:6 with VLAN tag 5.

C.

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

D.

The frame egresses from 1/1/1:6 with an inner VLAN tag of 5 and an outer VLAN tag of 6.

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Questions 27

What is the minimum Ethernet physical network MTU required for a Layer 2 service on an MPLS encapsulated SDP with a service MTU of 1500?

Options:

A.

1500

B.

1508

C.

1514

D.

1522

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Questions 28

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?

Options:

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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Questions 29

Which of the following about VPRN route targets is FALSE?

Options:

A.

A route target is used to distinguish to which VRF table a prefix belongs.

B.

A route target appended to an IPv4 prefix produces a VPN-IPv4 prefix.

C.

Multiple route targets can be part of a single MP-BGP update.

D.

Route targets must be configured for VPRNs.

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Questions 30

Which of the following about SAPs is TRUE?

Options:

A.

More than one SAP can be configured on a physical port that is configured for null encapsulation.

B.

Dot1Q Ethernet encapsulated access ports can support multiple SAPs and services.

C.

SAPs can be created on ports designated as "Network".

D.

SAPs can only be created on Ethernet ports.

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Questions 31

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

Options:

A.

Tunnel Label

B.

VC Label

C.

Operational Control Word

D.

UNI

E.

NNI

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Questions 32

Click the exhibit.

4A0-104 Question 32

The CEs use BGP and export policies to advertise their local prefixes with the VPRN on their PEs. If the VPRN is functioning properly, which of the following commands will succeed when performed on router R1?

Options:

A.

"ping 192.168.20.1"

B.

"oam vprn-ping 100 source 192.168.10.1 destination 192.168.20.1"

C.

"oam vprn-ping 100 source 192.168.20.1 destination 192.168.10.1"

D.

"ping 10.10.10.6" (router R6's system IP)

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Questions 33

An SDP using GRE encapsulation is configured for an E-pipe service. The network port used by the SDP has an MTU of 8000. What value does the SDP path MTU have by default on an Alcatel-Lucent 7750 SR?

Options:

A.

7958

B.

7978

C.

8022

D.

8042

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Questions 34

Which of the following about the Alcatel-Lucent 7750 SR sdp-ping is TRUE?

Options:

A.

It tests the IGP reachability of the far-end IP address of an SDP.

B.

It tests that the MTU settings of a service are correct.

C.

It tests in-band, uni-directional or round-trip connectivity of SDPs.

D.

It tests the reachability of hosts connected to an SDP.

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Questions 35

Which of the following about the components of a distributed service on the Alcatel-Lucent 7750 SR is TRUE?

4A0-104 Question 35

Options:

A.

A SAP can only be used by one service on a router.

B.

A dedicated SDP needs to be created for each service.

C.

A service is created on each site before the customer is created.

D.

SAPs must be created before a service is created.

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Questions 36

Which of the following about VPLS MAC learning is TRUE?

Options:

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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Questions 37

Which of the following statements are TRUE about configuring a SDP between an IES and a VPLS? (Choose 2)

Options:

A.

The SDP must be a mesh

B.

The SDP must be a spoke.

C.

Once the SDP is configured on both PE routers, both the services will be operationally up without further configuration changes.

D.

The Layer 2 MTUs must match between the IES and the VPLS

E.

The Layer 2 MTU must be 14 bytes smaller on the VPLS than it is on the IES.

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Questions 38

Which of the following encapsulation types on an Ethernet port support the provisioning of multiple SAPs? (Choose 2)

Options:

A.

Dot1Q

B.

Q-in-Q

C.

ATM

D.

NULL

E.

Nil

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Questions 39

Which of the following commands is used to disable an Epipe service?

Options:

A.

config>service# epipe service-id shutdown

B.

config>service# vpws service-id shutdown

C.

config>service# service-id shutdown

D.

config>port# port-id shutdown.

E.

config>service# epipe service-id disable

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Questions 40

Customer 'A' has sites on 3 different Alcatel-Lucent PE routers. The routers are connected to each other through an IP/MPLS network in a full mesh fashion. Customer 'A' requires a VPLS service. Which of the following statements are TRUE? (Choose2)

Options:

A.

Each router requires 1 VPLS service.

B.

Each router requires 2 VPLS services.

C.

Each router requires 1 SDP with 2 LSPs, one to each of the other 2 routers.

D.

Each router requires 2 SDPs.

E.

Each router requires 3 SDPs

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Questions 41

Which of the following statements best describes a route target?

Options:

A.

A route target is a BGP extended community used to identify the VRF table for a prefix at the receiving PE

B.

A route target is a mechanism from which VPRN controls the distribution of VPN routing information.

C.

Route target attributes are earned in a MP-BGP as attributes of the route.

D.

A route target is used by the PE router to identify the VRF that a VPN-lPv4 prefix is associated with.

E.

All of the above statements describe a route target

F.

None of the above statements describe a route target

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Questions 42

Which of the following SAPs will forward all tagged and untagged frames on the port? (Choose 2)

Options:

A.

sap 1/1/1

B.

sap 1/1/1:*

C.

sap 1/1/1:*.0

D.

sap 1/1/1:0*

E.

sap 1/1/1:0

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Questions 43

An operator needs to provision 6VPE on a 7750 SR that is also used to provide existing IPv4 VPRN services. IPv6 VPRN customers use BGP as a PE-CE protocol. Which of the following statements is FALSE regarding the configuration steps required?

Options:

A.

MP-BGP sessions need to be configured in the service provider network to support a VPN-IPv6 address family.

B.

PE routers must be configured to run MP-BGP and IPv6

C.

PE-to-CE BGP sessions need to be configured to support IPv6.

D.

The provider core must be configured to support IPv6

E.

None of the above statements are false.

F.

All of the above statements are false

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Exam Code: 4A0-104
Exam Name: Alcatel-Lucent Services Architecture
Last Update: Nov 16, 2024
Questions: 288

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