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4A0-C01 Nokia NRS II Composite Exam Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Nokia 4A0-C01 Nokia NRS II Composite Exam certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 852 questions

Which of the following is an optional parameter when configuring IS-IS protocol on a router?

A.

Configure IS-IS interfaces

B.

Enable IS-IS

C.

Configure level capabilities

D.

Specify an area address

Refer to the exhibit below.

R1 distributes its loopbacks into IS-IS and globally routed addresses are configured as shown. How many routes will R4 have in its IPv6 route table?

A.

1

B.

2

C.

3

D.

4

E.

6

F.

7

What value should the AFI be set to for locally administered addressing?

A.

1

B.

49

C.

83

D.

0

Which of the following statements regarding IS-IS Hello packets are true? Choose two answers.

A.

Different types of Hello packets are exchanged on point-to-point networks than on broadcast networks.

B.

L1/L2 Hello packets are exchanged on broadcast links.

C.

Different L1 and L2 Hello packets are exchanged on broadcast links.

D.

By default, Hello packets are sent every 5 seconds, and the timeout to declare a neighbor down is 15 seconds.

Which three IS-IS PDU types are used for database synchronization?

A.

Hellos, CSNPs, PSNPs

B.

LSPs. Hellos, CSNPs

C.

LSPs, PSNPs, Hellos

D.

LSPs, CSNPs, PSNPs

Click the exhibit button.

In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Which of the following statements regarding the OSPF LSAs in the network is true?

A.

Router R1 generates a type 5 LSA that is flooded through all OSPF areas.

B.

Router R1 generates a type 7 LSA that is flooded through all OSPF areas.

C.

Router R1 generates a type 5 LSA that is flooded through area 1. Router R2 generates a type 7 LSA that is flooded through areas 0 and 2.

D.

Router R1 generates a type 7 LSA that is flooded through area 1. Router R3 generates a type 5 LSA that is flooded through areas 0 and 2.

Which of the following best describes how IS-IS routers exchange updates on an Ethernet interface?

A.

IS-IS routers exchange updates by sending UDP packets to a multicast address.

B.

IS-IS routers exchange updates using IP multicast packets.

C.

IS-IS routers exchange updates using Ethernet multicast packets.

D.

IS-IS routers exchange updates by sending packets to the subnet broadcast address.

Given the NSAP address of 49.0012.1234.1234.1234.00, what area does the IS-IS router reside in?

A.

49.0012.1234

B.

49.0012

C.

12.1234

D.

1234

E.

49.1234

Which of the following is a characteristic of a VPLS?

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.

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

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.

Which of the following about SDPs is TRUE?

A.

SDP IDs must be locally unique.

B.

SDPs are specific to one service type.

C.

SDPs must use MPLS for their encapsulation.

D.

An SDP is required for a local service.

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

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.

Click the exhibit.

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?

A.

LDP

B.

BGP

C.

MP-BGP

D.

MPLS

A customer has sites on three different Alcatel-Lucent 7750 SRs. The customer requires a fully-meshed VPLS. Which of the following is TRUE?

A.

Each router requires 1 SDP.

B.

Each router requires 2 SDPs.

C.

Each router requires 3 SDPs.

D.

Each router requires 6 SDPs.

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

A.

IPCP

B.

LDP

C.

PPP

D.

TLDP

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

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.

Click the exhibit.

This output is from a router that is part of a 6VPE deployment using a VPRN. Which type of router would this configuration be found on?

A.

A CE router.

B.

A P router.

C.

A PE router.

D.

Both P and PE routers.

Which of the following about SDPs is FALSE?

A.

Spoke SDPs prevent loops in a VPLS.

B.

Mesh SDPs and spoke SDPs can be used in the same VPLS.

C.

A spoke SDP does not require the routers at both ends to be directly connected.

D.

A mesh SDP is identical to a spoke SDP except for its flooding behavior.

Click the exhibit.

Which OAM tool produced this output?

A.

vprn-ping

B.

sdp-ping

C.

traceroute

D.

Isp-trace

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?

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.

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?

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.

What is the best approach of making MTUs match between a VPLS and a spoke IES in order to bring up the service?

A.

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

B.

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

C.

Change the MTU of the SDP attached to the VPLS to match the service MTU of the VPLS.

D.

Set the DNF flag on the IES service.

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

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.

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

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.

Which of the following statements is FALSE regarding 6VPE?

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.

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.

Which of the following about VPRN route targets is FALSE?

A.

Route targets are carried in MP-BGP updates.

B.

Route targets identify the VRF that a VPN-IFV4 prefix is associated with.

C.

Route targets are communicated between PEs that are part of a specific VPRN.

D.

Route targets identify the egress SAP of a service towards a CE.

Click the exhibit.

R1 and R4 are providing a VPRN for the CEs. Which of the following about the traceroute run on router R5 is TRUE?

A.

The traceroute will only show one hop: R5-R6.

B.

The traceroute will only show 2 hops; R5-R1 and R4-R6.

C.

The traceroute will only show 3 hops: R5-R1, R1-R4 and R4-R6.

D.

The traceroute will show one hop for each router in the provider core and one for each CE-PE hop.

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.

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

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.

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

A.

Tunnel Label

B.

VC Label

C.

Operational Control Word

D.

UNI

E.

NNI

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

A.

Tunnel Label

B.

VC Label

C.

Operational Control Word

D.

VPI

E.

VCI

A network technician needs to set up a local mirror to replicate traffic for examination with a protocol analyzer. The analyzer is on port 1/1/4 of his service router. Which of the following configuration steps is required?

A.

A mirror source listing port 1/1/4.

B.

A mirror destination listing port 1/1/4.

C.

A remote source command indicating the IP address of the service router he is configuring a local mirror on.

D.

Verification that his IP/MPLS infrastructure is in place

E.

None of the above.

Click the exhibit.

Which of the following statements about the E-pipe service is TRUE?

A.

The service is a local service.

B.

The service requires a second spoke SDP on this router.

C.

The service's VC ID is 44.

D.

The service will accept VLAN tag 100.

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

A.

A transport tunnel can 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.

Which of the following fields is NOT present in a GRE encapsulated VPN service packet?

A.

DLC Header

B.

Control Word

C.

Transport Label

D.

Service Label

Click the exhibit.

PE1 and PE2 are Alcatel-Lucent 7750 SRs. Which of the following is the missing configuration required on PE2 to complete the mirror?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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

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.

On an Alcatel-Lucent 7750 SR, the OAM command 'svc-ping' can be used with options bcal-sdp' and 'remote-sdp'. Which of the following is TRUE?

A.

iocal-sdp' and 'remote-sdp' indicate that all services using these SDPs are pinged.

B.

'Iocal-sdp' and remote-sdp' indicate that pings are initiated from both local and remote routers.

C.

Both 'Iocal-sdp' and 'remote-sdp' take parameters to specify which SDPs are used for the test.

D.

'Iocal-sdp' indicates that the ping is sent in-band, and remote-sdp' indicates the return ping is in-band.

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?

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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