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Nokia 4A0-C01 Exam Made Easy: Step-by-Step Preparation Guide

Questions 1

Which of the following about SDPs is FALSE?

Options:

A.

All services bound to the same SDP must be the same service type.

B.

All services bound to the same SDP will have the same transport encapsulation.

C.

Any operation on an SDP will affect all services bound to that SDP.

D.

An SDP is used to direct traffic for a service from one router to another.

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Questions 2

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 3

On an Alcatel-Lucent 7750 SR, which of the following about IES interfaces is FALSE?

Options:

A.

An IES can only have one interface.

B.

An IES interface can have an SDP or a SAP.

C.

An IES can perform fragmentation.

D.

An IES must have an IP address assigned to it.

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Questions 4

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.

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Questions 5

Click the exhibit. This output is from router R4. Service 333 is a VPLS. Why might the peer 10.10.10.1 have the same value for IngLbl and EgrLbl?

Options:

A.

The labels are of local significance only, so other routers can use the same value.

B.

10.10.10.1 has yet to send its own unique label.

C.

Router R4 is using the same tunnel to send and receive to 10.10.10.1.

D.

The service on 10.10.10.1 is down, so it is rejecting packets.

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Questions 6

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 7

Click the exhibit.

4A0-C01 Question 7

The output is from PE router R1 about VPRN service 100. From which protocol did router R1 learn the prefix 192.168.20.0/24?

Options:

A.

LDP

B.

BGP

C.

MP-BGP

D.

MPLS

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Questions 8

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 9

Which of the following about VPRN VRF tables is FALSE?

Options:

A.

VRF information is advertised between PEs using MP-BGP.

B.

VRF tables are used to forward traffic to CEs.

C.

P routers use VRF tables to maintain customer-specific information.

D.

VRF tables provide isolation between customers.

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Questions 10

Which service type would be used to provide a bi-directional Layer 2 connection of TDM circuits over an IP/MPLS network?

Options:

A.

A-pipe

B.

E-pipe

C.

I-pipe

D.

F-pipe

E.

C-pipe

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Questions 11

Consider an E-pipe service configured with SAP 1/1/1:5 and SAP 1/1/1:6.7. If the SAP 1/1/1:5 accepts an ingress frame, which of the following is TRUE?

Options:

A.

The frame egresses 1/1/1:6.7 with an outer VLAN tag of 6 and inner tag of 7.

B.

The frame is dropped at the egress SAP 1/1/1:6.7.

C.

The frame egresses 1/1/1:6.7 with VLAN tag 5.

D.

The frame egresses 1/1/1:6.7 with VLAN tag 6.

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Questions 12

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 13

What needs to be configured before a SAP appears? (Choose 2)

Options:

A.

Configuring the physical port in access mode.

B.

Configuring the physical port in network mode.

C.

Enabling the port using the no shutdown command.

D.

Ports are enabled by default, thus no need to use the no shutdown command.

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Questions 14

Which of the following about IES is FALSE?

Options:

A.

An IES provides a Layer 3 interface to a customer.

B.

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

C.

An IES supports QoS.

D.

An IES interface's IP address, if bound to a port, will appear in the routing table.

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Questions 15

Click the exhibit.

4A0-C01 Question 15

The output is from PE router R4 about VPRN service 100. How many prefixes have been learned from the MP-BGP protocol?

Options:

A.

0

B.

2

C.

3

D.

6

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Questions 16

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

Options:

A.

The CE must be an IGP peer of the IES.

B.

The CE must be on the same subnet as the IES.

C.

The CE must use an E-pipe to connect to the IES.

D.

The CE must fragment any frames that are too large for the IES.

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Questions 17

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 18

All services mapped to an SDP use the same transport encapsulation type (either GRE or MPLS)

Options:

A.

TRUE

B.

FALSE

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Questions 19

Which of the following statements are FALSE regarding the VPN-IPv4 address family? (Choose 2)

Options:

A.

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

B.

The route distinguisher (RD) is appended to the IPv4 prefix to form a 16 byte VPN-IPv4 prefix.

C.

VPN-IPv4 allows BGP to distinguish multiple routes with the same prefixes originated from distinct customers

D.

VPN-IPv4 addresses are only present within the service provider network.

E.

In VPRN, data traffic is carried in VPN-IPv4 packets.

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Questions 20

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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Exam Code: 4A0-C01
Exam Name: Nokia NRS II Composite Exam
Last Update: Dec 13, 2024
Questions: 852

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