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4A0-104 Sample Questions Answers

Questions 4

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 5

Which of the following defines a SAP that will select frames with an outer tag of '4' and ignore any inner lag on a Q-in-Q encapsulated port?

Options:

A.

sap 1/1/1:0.*

B.

sap 1/1/1

C.

sap 1/1/1:*.4

D.

sap 1/1/1:4.*

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Questions 6

Which of the following statements is TRUE?

Options:

A.

An OSPF adjacency can be established on an IES interface.

B.

IES allows provider MP-BGP sessions to be extended to customers.

C.

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

D.

An IES interface supports OSPF and IS-IS in passive mode only.

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Questions 7

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 8

Which of the following statements is FALSE regarding SAPs?

Options:

A.

VPWS: SAPs can be defined on Ethernet, POS, Sonet/SDH, or TDM channels.

B.

VPWS: Two SAPs are defined for a service that originates and terminates on the same Alcatel-Lucent 7750 SR

C.

VPLS: More than two SAPs can be defined in a service.

D.

VPWS: SAPs are associated with an IP interface.

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Questions 9

FRF.5 is a standard that describes which of the following requirements?

Options:

A.

ATM to Frame Relay translation.

B.

Frame Relay to Ethernet translation.

C.

ATM tunneling over a Frame Relay core network.

D.

Frame Relay tunneling over an ATM core network.

E.

Frame Relay tunneling over an MPLS/IP core network

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Questions 10

Which of the following options are used to configure an MPLS signaling type to be used on an SDP? (Choose 2)

Options:

A.

configure service sdp sdp-id gre create

B.

configure service sdp sdp-id create

C.

Idp

D.

Isp Isp-name

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Questions 11

An ES service can have both MAC and IP filters applied to it.

Options:

A.

TRUE

B.

FALSE

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Questions 12

Click on the exhibit button below.

Assuming the customer only needs to monitor traffic from PE3 to the customer site, what three items are missing from PE3's configuration? (Assume that the IP/MPLS network structure between the local and remote PEsis in place.)

Options:

A.

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

B.

The mirror destination on PE3 needs a "remote-source" command.

C.

The mirror service IDs on the local and remote destinations must match.

D.

The mirror source on PE3 needs a "remote-source" command.

E.

The mirror source command on the remote PE3 needs a command that tells it to monitor port 1/1/2.

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Questions 13

What are the two major differences between configuring an IES service and configuring VPWS or VPLS services? (Choose 2)

Options:

A.

IES does not support QoS.

B.

IES has a configurable IP-MTU

C.

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

D.

An IES interface has an IP address assigned to it.

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Questions 14

Which of the following statements are TRUE regarding sdp-ping? (Choose 3)

Options:

A.

Provides a mechanism to determine the hops an SDP traverses.

B.

Provides in-band uni-directional connectivity tests.

C.

Provides in-band round-trip connectivity tests.

D.

Tests ability of reaching the far-end IP address of an SDP ID within the SDP encapsulation.

E.

Provides information regarding the exact MTU supported between service ingress and service termination.

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Questions 15

Which of the following best describes a MAC FDB used by a VPLS service?

Options:

A.

A VPLS service does not use a MAC FDB.

B.

A single MAC FDB is shared by all VPLS services on a PE.

C.

A separate MAC FDB is used on the PE for each VPLS service.

D.

Each VPLS service uses a separate MAC FDBs for unicast and multicast traffic.

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Questions 16

On the Alcatel-Lucent 7750 SR, which of the following statements about MP-BGP used for a VPRN is TRUE?

Options:

A.

Routes from different customers with the same IPv4 address prefix are treated as equivalent by MP-BGP.

B.

MP-BGP will advertise routes to other BGP sessions on the same PE without the need of policies.

C.

The multi-protocol nature of MP-BGP allows VPRN routes to be converted into IPv4 routes in the provider core network.

D.

MP-BGP is an enhanced version of BGP that can carry customer route prefixes for multiple VPRNs.

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Questions 17

Click the exhibit.

An operator at PE1 wants to analyze the traffic between CE1 and PE1 on SAP 1/1/3, On an Alcatel-Lucent 7750 SR, which of the following is NOT required as part of the configuration?

Options:

A.

A mirror source with a defined source type.

B.

A mirror source defined with an SDP destination.

C.

A mirror destination with a SAP defined.

D.

A mirror destination and a mirror source with the same service ID.

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Questions 18

Click the exhibit.

The operator at PE1 wants to analyze the traffic between CE4 and PE2. On an Alcatel-Lucent 7750 SR, which of the following is required as part of the configuration?

Options:

A.

Both PE1 and PE2 need a mirror source.

B.

PE2 needs a mirror source with the remote source specified.

C.

PE1 needs a mirror source with the remote source specified.

D.

Both PE1 and PE2 need a mirror destination.

E.

PE2 needs a mirror destination that specifies a SAP.

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Questions 19

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

Options:

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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Questions 20

When configuring distributed services across a network, it is considered best practice to configure which of the following parameters as globally significant?

Options:

A.

Customer ID and SAP ID.

B.

Customer ID and Service ID.

C.

SAP ID and Service ID.

D.

SDP ID and Service ID.

E.

SDP ID and SAP ID.

F.

SDP ID and VC ID.

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Questions 21

The terms "customer" and "service" are used synonymously when describing a service implementation on the Alcatel-Lucent 7750 SR.

Options:

A.

TRUE

B.

FALSE

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Questions 22

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 23

Click the exhibit.

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

Options:

A.

0

B.

1

C.

2

D.

3

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Questions 24

Which of the following about VPLS MAC learning is FALSE?

Options:

A.

The PE routers of the service are responsible for learning MAC addresses.

B.

Flooding ensures that all PEs in a fully-meshed VPLS will learn the source address of all traffic.

C.

MAC learning reduces flooding of frames with previously learned addresses.

D.

Multiple VPLSes on the same PE share the same MAC FDB.

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Questions 25

On an Alcatel-Lucent 7750 SR, which vc-type will strip service delimiting tags at the ingress PE?

Options:

A.

vc-type ether

B.

vc-type vlan

C.

vc-type dotlq

D.

vc-type null

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Questions 26

Click the exhibit.

E-pipe 100 is using an SDP with an LSP that uses the path shown (PE1-PE2-PE3-PE4). Based on the OAM command output, which of the following is FALSE?

Options:

A.

The E-pipe can support a maximum MTU size of 1578.

B.

The ports of the link PE2-PE3 have an MTU of 1578.

C.

An svc-ping of the E-pipe will succeed.

D.

If the step size was 2, the maximum response size would be the same.

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Questions 27

Click the exhibit.

Based on the output from PE router R1about VPRN 100, by which protocol was 192.168.10.0/24 learned?

Options:

A.

BGP

B.

MP-BGP

C.

LDP

D.

MPLS

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Questions 28

Click the exhibit.

Which tool produced this output?

Options:

A.

ping

B.

Isp-ping

C.

traceroute

D.

Isp-trace

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Questions 29

Which of the following SAPs will NOT forward untagged frames?

Options:

A.

sap 1/1/1

B.

sap 1/1/1:*

C.

sap 1/1/1:0

D.

sap 1/1/1:1

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Questions 30

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

Options:

A.

Route distinguishes are contained in VPN-IPv4 prefixes.

B.

Route distinguishes allow the same IP prefix to be used for more than one destination in a single VPRN.

C.

Route distinguishes allow MP-BGP to manage multiple routes for the same IP prefix.

D.

Route distinguishes are only used by the PE routes.

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Questions 31

What is the minimum Ethernet physical network MTU required for a Layer 2 service on an MPLS encapsulated SDP with a service MTU of 1518?

Options:

A.

1520

B.

1540

C.

1548

D.

1556

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Questions 32

Click the exhibit.

Assuming CE1 exports its system address using BGP, is a routing policy required on PE1 to advertise CE1's system address to PE2?

Options:

A.

Yes, A routing policy is required to advertise routes between PE routers in a VPRN regardless of the CE-PE routing.

B.

Yes, A routing policy is required in this case because BGP is used as the PE-CE routing protocol.

C.

No, a routing policy is not required. By default, the Alcatel-Lucent 7750 SR will advertise all VPRN routes between PE routers.

D.

No, a routing policy is not required on PE1, but an import policy is required on PE2.

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Questions 33

Which of the following is a benefit of VPRN as compared to VPLS?

Options:

A.

Service providers can apply QoS, ingress/egress traffic shaping and policing on a per service basis.

B.

Different customers with overlapping address space can be accommodated.

C.

There is a clear demarcation of customer and service provider networks.

D.

Customers can connect to the same service using different subnets.

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Questions 34

Which of the following about VPRN route targets is FALSE?

Options:

A.

They are used to identify the VRF table for a prefix at the receiving PE.

B.

They are used by VPRNs to control the distribution of VPN routing information.

C.

They are distributed to all PEs and CEs that are part of the VPRN.

D.

They are distributed to PEs to identify the VRF table that a VPN-IPv4 prefix is associated with.

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Questions 35

By default, what does a PE do to support VPLS services for different customers? (Choose 2)

Options:

A.

MAC learning.

B.

Maintain a different Forwarding Data Base for each service

C.

ARP mediation.

D.

Maintain a different Routing Information Base for each service.

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Questions 36

Which of the following best describes the label stack for a packet in the VPRN context?

Options:

A.

An outer label and a transport label.

B.

An inner label and a service label.

C.

A transport label and a service label.

D.

An MPLS transport label

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Questions 37

Which of the following commands is used to create a new Epipe service?

Options:

A.

configure epipe service-id customer customer-id create

B.

configure service epipe service-id customer customer-id create

C.

configure epipe service-id create

D.

configure epipe service-id customer customer-id create

E.

configure epipe service service-id customer customer-id create

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Questions 38

Which of the following must be configured when configuring an Epipe service? (Choose 4)

Options:

A.

Configuring an Epipe service with a customer ID

B.

Defining a SAP or SAPs.

C.

Binding to an SDP if it is a distributed service.

D.

Enabling the service using the no shutdown command.

E.

Creating and assigning an IP filter to the SAP.

F.

Configuring QoS parameters

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Questions 39

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

Options:

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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Questions 40

If the Alcatel-Lucent 7750 SR is rebooted after an "admin save'' has been performed, which of the following about mirror services is TRUE?

Options:

A.

Only the mirror source must be re-configured.

B.

Only the mirror destination must be re-configured.

C.

Both the mirror destination and mirror source must be re-configured.

D.

Neither the mirror destination nor the mirror source must be re-configured.

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Questions 41

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 42

Which of the following SAPs will toward tagged frames but NOT untagged frames?

Options:

A.

sap 1/1/1

B.

sap 1/1/1:*

C.

sap 1/1/1:*.0

D.

sap 1/1/1:0

E.

None of the above.

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Questions 43

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

Options:

A.

1

B.

5

C.

10

D.

20

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Exam Code: 4A0-104
Exam Name: Alcatel-Lucent Services Architecture
Last Update: Mar 22, 2024
Questions: 288
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