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Nokia 4A0-104 Alcatel-Lucent Services Architecture Exam Practice Test

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Alcatel-Lucent Services Architecture Questions and Answers

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Question 1

Which of the following about 6VPE is FALSE?

Options:

A.

To advertise VPN-IPv4 and VPN-IFV6 routes, two MP-BGP sessions are required.

B.

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

C.

MP-BGP is used to advertise IPv6 prefixes and the associated VPRN labels.

D.

The provider core routers are IPv6-unaware.

Question 2

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.

Question 3

On an Alcatel-Lucent 7750 SR, why must the MTU be explicitly set when configuring an IES spoke termination to a VPLS?

Options:

A.

By default, a VPLS signals an MTU based on the network port.

B.

By default, an IES sets its ip-mtu to the VC MTU of the VPLS.

C.

By default, an IES uses an MTU value based on its SAP.

D.

By default, an IES uses an MTU based on the network port.

Question 4

On an Alcatel-Lucent 7750 SR, which of the following statements about the default advertisement of VRF routes is true?

Options:

A.

All routes in the VRF are advertised to the PEs and CEs.

B.

No routes in the VRF are advertised to the PEs or to the CEs.

C.

All routes in the VRF are advertised to the PEs, but not to the CEs.

D.

All routes in the VRF are advertised to the CEs, but not to the PEs.

Question 5

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.

Question 6

Click the exhibit.

E-pipe 100 is using an SDP (4) with an LSP that uses the path shown (PE1-PE2-PE3-PE4). Which of the following is the expected output from the OAM command?

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Question 7

Which of the following SAPs can be used so that only untagged frames and frames with a VLAN tag of 0 are accepted?

Options:

A.

sap 1/1/1:0

B.

requires both sap 1/1/1:0 and sap 1/1/1:*

C.

sap 1/1/1:0-4096

D.

sap 1/1/1:*

Question 8

Which of the following about configuring a distributed E-pipe service is TRUE?

Options:

A.

The VC ID on the mesh SDP must be explicitly configured.

B.

The VC ID on the spoke SDP must be explicitly configured.

C.

The VC ID on the mesh SDP does not have to be explicitly configured and it will use the service id.

D.

The VC ID on the spoke SDP does not have to be explicitly configured and it will use the service id.

Question 9

Which of the following about VPRNs is FALSE?

Options:

A.

A VPRN is a Layer 3 service.

B.

A PE maintains a separate forwarding table for each VPRN.

C.

The service provider manages the customers IP addressing.

D.

Multiple VPRNs can be deployed over the same IP/MPLS network infrastructure.

Question 10

By default, what happens when a packet with a VLAN tag is received on a SAP provisioned with null encapsulation?

Options:

A.

The original VLAN tag is removed.

B.

The original VLAN tag is kept.

C.

The VLAN tag is replaced by a provider tag.

D.

The VLAN tag is kept and a provider tag is added.

Question 11

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

Question 12

Why must the MTU be changed when configuring an IES spoke termination to a VPLS?

Options:

A.

The default service MTU on a VPLS service is 1514 bytes.

B.

The default IP MTU of an IES is set based on the network port MTU.

C.

During VC label signaling, the VC MTU is verified and must match.

D.

All of the above.

Question 13

Which of the following about transport tunnels used by services is FALSE?

Options:

A.

A transport tunnelcan carry many service tunnels.

B.

The transport label is unchanged throughout the transport network.

C.

A single network port can carry more than one transport tunnel.

D.

Both MPLS and GRE transport tunnels use a service label.

Question 14

Which service type is needed to bridge an ATM-attached user and an Ethernet-attached user?

Options:

A.

A-pipe

B.

F-pipe

C.

C-pipe

D.

E-pipe

Question 15

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

Options:

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.

Question 16

Choose the following components that are necessary for the configuration of a mirror service. (Choose 2)

Options:

A.

A mirror destination to indicate which ports to monitor.

B.

A mirror source to indicate which ports to monitor.

C.

A mirror destination to indicate on which sap or sdp traffic should be replicated.

D.

A mirror source to indicate on which sap or sdp traffic should be replicated

Question 17

Which of the following about an E-pipe terminating on a VPLS is FALSE?

Options:

A.

The VC-IDs used between the E-pipe and VPLS must match.

B.

The E-pipe must maintain a MAC FDB in order to connect to the VPLS.

C.

The service ID of the E-pipe can be different from that of the VPLS.

D.

The service MTU of the VPLS and E-pipe must match.

Question 18

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.

Question 19

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.

Question 20

Which of the following about VPRNs is TRUE?

Options:

A.

Customers must use the same routing protocol as the service provider.

B.

Customers belonging to the same VPRN service must use the same subnet.

C.

Service providers only need to perform configurations on the PEs to add additional VPRNs.

D.

For each VPRN, only one customer can be connected at each PE.

Question 21

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

Options:

A.

Tunnel Label

B.

VC Label

C.

Operational Control Word

D.

VPI

E.

VCI

Question 22

On an Alcatel-Lucent 7750 SR, what is the recommended approach for making sure that MTUs between a VPLS and its spoke IES termination match?

Options:

A.

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

B.

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

C.

Set the SDP MTU of the IES to match the SDP MTU of the VPLS.

D.

Set the MTU of the IES's network port to match the service MTU of the VPLS.

Question 23

A VPLS receives a frame with the single VLAN tag 35 on the Q-in-Q SAP 1/1/1:35.*.Which of the following describes default Alcatel-Lucent 7750 SR behavior?

Options:

A.

The frame is dropped.

B.

The VLAN tag is removed, and the frame is transported over the network.

C.

The VLAN tag is kept, and the frame is transported over the network.

D.

The VLAN tag is kept, a VLAN of 0 is added, and the frame is transported over the network.

Question 24

Click the exhibit.

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)

Question 25

Which of the following is a characteristic of a VPLS?

Options:

A.

All SAPs of a VPLS belong to the same broadcast domain.

B.

When a new site is added, all the existing sites need to be shutdown and re-provisioned.

C.

An additional T-LDP session is required between PEs for each additional VPLS that is provisioned.

D.

Multiple VPLSes on the same router share a single MAC FDB.

Question 26

A VPLS has a service MTU of 1600. To create an IES spoke termination to the VPLS, what ip-mtu value must be used for the IES?

Options:

A.

1586

B.

1596

C.

1600

D.

1614

Question 27

Which of the following about the Isp-ping command on the Alcatel-Lucent 7750 SR is FALSE?

Options:

A.

An echo request is sent based on the LSP's label stack.

B.

Echo reply packets may not take the same path as the LSP.

C.

The IP destination address is used to initiate echo requests,

D.

The test fails if the LSP is not operationally up.

Question 28

Which of the following statements is TRUE concerning route distinguishes on the 7750 SR?

Options:

A.

Route distinguishes are 12 bytes in length

B.

Route distinguishes are appended to IPv4 prefixes to form 16 byte VPN-IFV1 prefixes.

C.

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

D.

CE routes must be configured with the proper route distinguishes for the VPRN they are associated to

E.

All of the above statements are true.

F.

All of the above statements are false.

Question 29

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.

Question 30

Which of the following statements is FALSE regarding 6VPE?

Options:

A.

6VPE is a tunneling technology that makes use of MPLS tunnels to transport IPv6 information over an IPv4 MPLS infrastructure.

B.

Customers connected to 6VPE could run native IPv6 or IPv4.

C.

On the PE router, the next hop for a VPN IPv6 address is an IPv6 address, regardless of the nature of the network between the PEs.

D.

6VPE requires an IPv6-aware MPLS core.

E.

Both C and D are false.

F.

All of the above statements are true.

Question 31

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.*

Question 32

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?

Options:

A.

1514

B.

1526

C.

1548

D.

1556

E.

1536

Question 33

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

Options:

A.

Tunnel Label

B.

VC Label

C.

Operational Control Word

D.

UNI

E.

NNI

Question 34

In a Layer 2 VPN service, the FCS is stripped when a customer packet arrives at the ingress PE and regenerated on egress.

Options:

A.

TRUE

B.

FALSE

Question 35

A transport tunnel can either use an MPLS or GRE encapsulation.

Options:

A.

TRUE

B.

FALSE

Question 36

Which of the following commands is used to configure a new MPLS SDP?

Options:

A.

configure router sdp sdp-id

B.

configure service sdp sdp-id create

C.

configure service mpls sdp sdp-id create

D.

configure service gre sdp sdp-id create

E.

configure service sdp sdp-id mpls create

Question 37

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.

Question 38

SAPs in an Epipe service can only be configured on Ethernet ports

Options:

A.

TRUE

B.

FALSE

Question 39

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.

Question 40

How many SAPs can be configured on a port configured with NULL encapsulation?

Options:

A.

1

B.

4096

C.

None. This encapsulation is not supported.

D.

The number is limited only by the capacity of the router

Question 41

Which of the following statements is NOT a valid reason to use MP-BGP as a routing protocol to transport VPRN routes?

Options:

A.

The number of VPRN routes can become very large. MP-BGP can support a very large number of routes.

B.

MP-BGP can carry routing information for a number of different address families.

C.

MP-BGP is designed to exchange information between routers that are not directly connected. This feature keeps VPRN routing information out of P-routers.

D.

MP-BGP can carry additional information attached to a route as an optional BGP attribute.

E.

All of the above statements are valid reasons for using MP-BGP as a VPRN routing protocol.

Question 42

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

Options:

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.

Question 43

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

Options:

A.

Apipe

B.

Fpipe

C.

Cpipe

D.

Epipe

E.

Bridge service

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