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

Question # 4

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

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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Question # 5

Which of the following about VPRNs is TRUE?

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.

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Question # 6

Click the exhibit.

This is output from router R4. Service 333 is a VPLS. Why does peer 10.10.10.1 not have an EgrLbl?

A.

The SDP to 10.10.10.1 on router R4 is shutdown.

B.

Router R4 has not sent a label to router R1(10.10.10.1) yet.

C.

10.10.10.1 has a different service MTU set.

D.

10.10.10.1 has not sent a label to router R4 yet.

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Question # 7

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

A.

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

B.

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

C.

A route distinguisher combined with an IPv4 prefix produces a VPN-IPv4 prefix.

D.

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

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Question # 8

What happens by default on an Alcatel-Lucent 7750 SR when a null encapsulated SAP receives a frame with a VLAN tag?

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.

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Question # 9

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

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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Question # 10

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 # 11

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 # 12

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

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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Question # 13

Which of the following about VPRN labels is FALSE?

A.

The outer label allows traffic to transit across the MPLS network.

B.

The inner label identifies the VPRN service.

C.

MP-BGP is used to signal VPRN labels.

D.

The VPRN service label contains the customer's IP address.

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Question # 14

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

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.

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Question # 15

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 # 16

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 # 17

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

A.

IPCP

B.

LDP

C.

PPP

D.

TLDP

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Question # 18

Which of the following about VPRNs is FALSE?

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.

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Question # 19

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

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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Question # 20

Which of the following commands is required to configure an Ethernet port to be used as a SAP in a service?

A.

Configure service sap sap-id access

B.

Configure port port-idEthernetmode access

C.

Configure port port-idEthernetmode network

D.

Configure port port-id mode access

E.

Configure port port-id mode network

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Question # 21

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)

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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Question # 22

What happens when a packet without a VLAN tag is received on a SAP provisioned with null encapsulation while an SDP vc-type is provisioned as vlan?

A.

The frame is dropped.

B.

The service ID is added as the VLAN tag.

C.

A VLAN tag of 0 is added as the provider VLAN tag

D.

The frame is forwarded with no VLAN tag

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Question # 23

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

A.

TRUE

B.

FALSE

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Question # 24

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?

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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Question # 25

A customer requests that their Layer 2 Ethernet service be configured to forward frames up to 9000 bytes. The service provider is using MPLS encapsulation. What is the minimum MTU setting for the network ports?

A.

9000

B.

9004

C.

9008

D.

9022

E.

9036

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Question # 26

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

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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Question # 27

Which of the following statements is TRUE?

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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Question # 28

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 # 29

Service tunnels and transport tunnels are bidirectional and only require the operator to configure the tunnel on one router.

A.

TRUE

B.

FALSE

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Question # 30

Which of the following SAP encapsulations support multiple services on a port? (Choose 3)

A.

dot1q

B.

null

C.

qinq

D.

atm

E.

ipcp

F.

bcp-null

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Question # 31

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 # 32

Which of the following best describes how the path-mlu is chosen for an SDP?

A.

An SDP does not have a path-mtu

B.

The path-mtu must be set by the administrator.

C.

By default, the path-mtu is calculated automatically from the network port MTU of the PE router.

D.

The path-mtu is calculated based on the service MTU of the service using the SDP.

E.

The path-mtu is signaled between the PE endpoints when the service is established.

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Question # 33

When provisioning a spoke-SDP on an Epipe, what MUST match on both ends of the service?

A.

Service ID

B.

Customer ID

C.

SAPID

D.

VC-ID

E.

SDPID

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Question # 34

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

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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Question # 35

In a Layer 2 encapsulation, using Martini, 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 # 36

Which of the following statements is FALSE about the VPN label?

A.

The VPN label is signaled between PE devices using MP-BGP.

B.

The VPN label is swapped at each P router as a packet crosses the service provider network.

C.

The VPN label is also known as the inner label or service label.

D.

The VPN label indicates which VPRN a packet should be sent to once it reaches the egress PE.

E.

All of the above

F.

Only C and D.

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Question # 37

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

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 # 38

Click the exhibit.

Which OAM tool produced this output?

A.

vprn-ping

B.

sdp-ping

C.

traceroute

D.

Isp-trace

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Question # 39

Which of the following MUST be identical for a service between two PEs?

A.

Customer ID

B.

SDPID

C.

Service ID

D.

VCID

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Question # 40

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

A.

A VPLS service does not use an FDB.

B.

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

C.

The router reads the source MAC address of packets 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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Question # 41

A service needs to accept frames that have the following: an outer VLAN tag of 200 with an inner VLAN tag of 33; and frames that have an outer VLAN tag of 250 with an inner VLAN tag of 33. What SAP(s) need to be configured?

A.

1/1/1:200.*

B.

1/1/1:*.33

C.

1/1/1:*.*

D.

This requires two SAPs: 1/1/1:200.33 and 1/1/1:250.33

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Question # 42

An operator wishes to verify end-to-end connectivity for an individual service. What utility will he or she most likely use?

A.

sdp-ping

B.

Isp-ping

C.

svc-ping

D.

sdp-mtu

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Question # 43

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

A.

An SDP can be used by more than one service and customer.

B.

A SAP can only be created on an access port.

C.

A customer can have multiple services associated to it.

D.

A customer is only created on one site of a distributed service.

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