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Ace the Nokia 4A0-104 Exam: Ultimate Preparation Guide

Questions 21

On the Alcatel-Lucent 7750 SR, which one of the following steps is NOT required when enabling an MP-BGP session between PE routers in a VPRN?

Options:
A.

Configuring an autonomous system number in the global context.

B.

Configuring a BGP group and peer parameters.

C.

Configuring a VPN-IPv4 address family.

D.

Configuring an export policy to advertise routes between PEs.

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Questions 22

Which of the following about the BGP VPN-IPv4 address family is FALSE?

Options:
A.

When a PE router receives an IPv4 prefix from its local CE, it creates a VPN-IFV4 prefix.

B.

VPN-IPv4 allows BGP to distinguish between duplicate prefixes originating from different customers.

C.

In a VPRN, data traffic is carried in packets that have VPN-IPv4 addresses.

D.

VPN-IFV4 addresses are only present within the service provider network.

Questions 23

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.

Questions 24

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.

Questions 25

The SAP 1/1/1:2.3 receives an Ethernet frame with outer VLAN tag 2 and inner VLAN tag 5. Which of the following is TRUE?

Options:
A.

The matching outer tag is removed, and the frame is forwarded.

B.

The inner tag is removed, and the frame is forwarded.

C.

The inner tag is changed to match the SAP, and the frame is forwarded.

D.

The frame is dropped.

Questions 26

Which of the following about VPRN labels is FALSE?

Options:
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.

Questions 27

By default, what does the Alcatel-Lucent 7750 SR do when a frame with an unknown destination address is received in a VPLS?

Options:
A.

It drops the frame.

B.

It floods the frame to all PEs participating in the service.

C.

It sends a destination unreachable message back to the originating host.

D.

It sends the frame to the closest neighbor.

Questions 28

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

Options:
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.

Questions 29

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

Options:
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.

Questions 30

When using MP-BGP for an IPv4 VPRN service, what address family needs to be used for a PE-CE BGP session?

Options:
A.

The VPN-IPv4 address family.

B.

The IPv4 address family.

C.

Either IPv4 or VPN-IPv4 address families can be configured.

D.

The same address family must be used for the provider network and the PE-CE.

Exam Code: 4A0-104
Certification Provider: Nokia
Exam Name: Alcatel-Lucent Services Architecture
Last Update: Jan 15, 2025
Questions: 288

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